{"title":"Carbon Air Filters | VOC, Odor, AMC, Industrial","description":"\u003cdiv class=\"rtf-collection-intro\"\u003e\n\n\u003ch2\u003eCarbon \u0026amp; Gas-Phase Air Filtration | VOC, Odor, Industrial\u003c\/h2\u003e\n\n\u003cp\u003eCarbon air filtration is its own discipline within commercial and industrial HVAC — targeting \u003cstrong\u003egas-phase contaminants\u003c\/strong\u003e (volatile organic compounds, odors, ammonia, formaldehyde, hydrogen sulfide, sulfur dioxide, diesel exhaust, amines, acid gases) that standard particulate filters can't remove. RTF carries the full Koch carbon catalog, from 1″\/2″\/4″ pleated carbon panels through 12″-deep V-cell extended-surface carbon filters for \u003cstrong\u003esub-ppm airborne molecular contamination (AMC)\u003c\/strong\u003e in cleanrooms, museums, hospitals, and industrial process applications.\u003c\/p\u003e\n\n\u003ch3\u003eChoose by depth and application\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1″\/2″\/4″ pleated carbon panels\u003c\/strong\u003e — standard HVAC drop-in replacement form factor with carbon impregnation. Browse the \u003ca href=\"\/collections\/odorkleen-carbon-filters\"\u003eOdorKleen family\u003c\/a\u003e (ES, 250 CarbonWeb, 200\/M13 MERV 13, 600 CarbonWeb MERV 10) for office buildings, schools, hospitality, and standard commercial HVAC needing odor and VOC control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″ V-cell carbon filters\u003c\/strong\u003e — high-volume gas-phase capacity for industrial scale. Browse the \u003ca href=\"\/collections\/v-cell-carbon-filters\"\u003eV-cell family\u003c\/a\u003e: \u003ca href=\"\/collections\/durapure-carbon-filters\"\u003eDuraPure\u003c\/a\u003e (honeycomb cells, premium 60% activated coconut shell carbon, up to 26 lbs per filter) for airports and chemical plants; \u003ca href=\"\/collections\/durakleen-carbon-filters\"\u003eDuraKleen\u003c\/a\u003e (CPS technology, 500 gsm 20x50 mesh, sub-ppm AMC) for cleanrooms and museums; or \u003cstrong\u003eDuraKleen V\u003c\/strong\u003e (pleated coconut shell carbon, MERV 8\/15) for combined particulate + gas-phase HVAC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBy MERV\u003c\/strong\u003e — if you need a specific particulate efficiency rating alongside carbon performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBy application\u003c\/strong\u003e — cleanroom, hospital, pharmaceutical, museum\/archive, industrial process, or general VOC\/odor removal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat we ship\u003c\/h3\u003e\n\n\u003cp\u003eRTF is an \u003cstrong\u003eauthorized Koch dealer\u003c\/strong\u003e with 20 years of experience specifying carbon filtration for commercial and industrial applications. Our commercial team works with hospitals, pharmaceutical manufacturers, semiconductor and cleanroom operators, museums and archives, airport facilities, chemical plants, and government\/military buyers (Section 889\/NDAA, COI, net terms, tax-exempt all available). Family-founded in 2006 with 50+ years of commercial HVAC and industrial filtration domain expertise.\u003c\/p\u003e\n\n\u003ch3\u003eNeed help specifying?\u003c\/h3\u003e\n\n\u003cp\u003eIf you're unsure which carbon filter fits your contaminant profile and HVAC system, \u003ca href=\"\/pages\/contact-us\"\u003econtact our commercial team\u003c\/a\u003e with your target gases, contaminant concentrations, airflow requirements, and operating temperature, and we'll match the right Koch product. For specialty impregnated carbon (KMnO\u003csub\u003e4\u003c\/sub\u003e alumina for ammonia, specialized media for amines and acid gases) or facility-scale orders, \u003ca href=\"\/pages\/quote\"\u003erequest a quote\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003c\/div\u003e","products":[{"product_id":"koch-odorkleen-es-merv-8-carbon-particulate-filter","title":"Koch OdorKleen ES (MERV 8 Carbon Particulate Filter for VOC and Odor Control)","description":"\u003cp\u003ePer the Koch OdorKleen ES product bulletin, the Koch \u003cstrong\u003eOdorKleen ES\u003c\/strong\u003e is a \u003cstrong\u003eMERV 8 extended-surface pleated panel filter\u003c\/strong\u003e that combines particulate filtration with carbon-impregnated odor and VOC removal in a totally disposable unit. Per Koch, OdorKleen ES uses a \u003cstrong\u003etwo-ply media element\u003c\/strong\u003e: a 100% mechanical upstream layer for particulate capture (rated 70% efficient for 3-10 micrometer particles), backed by a downstream layer impregnated with carbon media for absorption of \u003cstrong\u003evolatile organic compounds (VOCs)\u003c\/strong\u003e and odors from the air stream. Per Koch, the carbon media carries a \u003cstrong\u003eminimum activation of 60%\u003c\/strong\u003e, providing high odor absorption efficiency and extended lifecycle between filter changes.\u003c\/p\u003e\u003ch3\u003eWhat you get: pleated carbon-impregnated panel filters, sold by the case\u003c\/h3\u003e\u003cp\u003eEach variant is a \u003cstrong\u003esingle OdorKleen ES pleated panel\u003c\/strong\u003e with a die-cut beverage board frame and integrated two-ply media (mechanical + carbon). Available in 1″, 2″, 4″, and 6″ depths across a wide range of nominal face sizes. The price you see for each variant is the \u003cstrong\u003efull case price\u003c\/strong\u003e; carton quantities vary by size and depth:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1″ depth filters (32 sizes):\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePopular sizes:\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x24″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e14″x20″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x20″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x25″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x20″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x25″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24″x24″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdditional sizes:\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e10″x10″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10″x20″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10″x24″x1″\u003c\/strong\u003e (Ex) — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x12″x1″\u003c\/strong\u003e — \u003cstrong\u003e24 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x18″x1″\u003c\/strong\u003e — available by quote. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x20″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x25″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e14″x24″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e14″x25″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e14″x30″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e15″x20″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e15″x25″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x16″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x24″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x30″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e18″x18″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e18″x20″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e18″x24″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e18″x25″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e18″x30″x1″\u003c\/strong\u003e — available by quote. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x22″x1″\u003c\/strong\u003e — available by quote. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x24″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x30″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24″x30″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e25″x25″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2″ depth filters (27 sizes):\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePopular sizes:\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x24″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e14″x20″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x20″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x25″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x20″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x24″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x25″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24″x24″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdditional sizes:\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e10″x20″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x12″x2″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x20″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x25″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e14″x25″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e14″x30″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e15″x20″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x16″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x24″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x30″x2″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e18″x18″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e18″x20″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e18″x24″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e18″x25″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x30″x2″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x35″x2″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e21.5″x36.5″x2″\u003c\/strong\u003e — available by quote. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24″x30″x2″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e25″x25″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4″ depth filters (11 sizes):\u003c\/strong\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eAdditional sizes:\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x24″x4″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e15″x20″x4″\u003c\/strong\u003e — available by quote. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x20″x4″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x24″x4″\u003c\/strong\u003e — available by quote. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x25″x4″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e18″x24″x4″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x20″x4″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x24″x4″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x25″x4″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24″x24″x4″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e25″x29″x4″\u003c\/strong\u003e — available by quote. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6″ depth filters (1 sizes):\u003c\/strong\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003eAdditional sizes:\u003c\/strong\u003e\u003cul\u003e\u003cli\u003e\n\u003cstrong\u003e24″x24″x6″\u003c\/strong\u003e — \u003cstrong\u003e4 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eSizes listed are nominal — for actual filter dimensions per Koch, see the construction section below or Koch Bulletin K-100B (Multi-Pleat XL8 frame family). All filters ship in full cartons only.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eOdorKleen ES construction (per Koch OdorKleen ES bulletin)\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm factor:\u003c\/strong\u003e Extended-surface pleated panel filter (Multi-Pleat XL8 frame architecture with carbon layer added)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTwo-ply media element (per Koch):\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUpstream layer:\u003c\/strong\u003e 100% mechanical media, 70% efficient for 3-10 micrometer particles\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDownstream layer:\u003c\/strong\u003e Carbon-impregnated media for VOC absorption, minimum 60% activation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePleat support:\u003c\/strong\u003e Rugged, rustproof expanded metal grid (per Koch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnclosure frame:\u003c\/strong\u003e Rigid, high wet-strength beverage board (per Koch); die-cut construction. Per Koch: \"this ultra-tough frame makes the OdorKleen ideal for use in nearly any application, especially in systems where high moisture levels have rendered standard air filters ineffective.\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMERV rating:\u003c\/strong\u003e MERV 8 per ASHRAE Test Standard 52.2-2007, before AND after conditioning steps (per Koch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Final Pressure Drop:\u003c\/strong\u003e 1.0″ w.g. (per Koch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUL listing:\u003c\/strong\u003e UL Class 2 listed per UL Standard 900 (per Koch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eContinuous operating temperature:\u003c\/strong\u003e Up to 120°F (49°C) (per Koch)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable depths:\u003c\/strong\u003e 1″, 2″, and 4″ per Koch bulletin; 6″ depth available in 24x24x6 (this RTF lineup)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisposability:\u003c\/strong\u003e Single-use disposable; not washable\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePerformance data by depth (per Koch OdorKleen ES bulletin)\u003c\/h3\u003e\u003ctable style=\"border-collapse:collapse;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eFilter Depth\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eTest Air Velocity\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eInitial Resistance\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eFinal Resistance\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003ePleats \/ Linear Foot\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e1″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e300 FPM\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.27″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e1.0″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e2″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e500 FPM\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.36″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e1.0″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e4″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e500 FPM\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.29″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e1.0″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003ePer Koch, the rated capacity (CFM) for each filter size at 300 FPM and 500 FPM face velocities is published in the OdorKleen ES bulletin. For the specific size you're ordering, refer to the Koch bulletin linked at the bottom of this page or contact RTF for assistance.\u003c\/p\u003e\u003ch3\u003eApplications (per Koch OdorKleen ES bulletin)\u003c\/h3\u003e\u003cp\u003ePer Koch, OdorKleen ES is specified for environments with light to moderate contaminant levels where both particulate filtration and odor\/VOC control are required:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eCommercial Office Buildings\u003c\/li\u003e\n\u003cli\u003eAirports\u003c\/li\u003e\n\u003cli\u003eSports Arenas\u003c\/li\u003e\n\u003cli\u003eHospitals\u003c\/li\u003e\n\u003cli\u003eSchools\u003c\/li\u003e\n\u003cli\u003ePainting Facilities\u003c\/li\u003e\n\u003cli\u003eIndustrial Plants\u003c\/li\u003e\n\u003cli\u003eSmoking Lounges\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eAbout carbon-impregnated odor and VOC filtration\u003c\/h3\u003e\u003cp\u003eStandard MERV 8 pleated filters capture particulate — dust, pollen, lint — but pass right through gaseous contaminants like cooking odors, paint fumes, off-gassing from new construction materials, and other VOCs that occupants describe as \"smells\" rather than \"dust.\" Carbon-impregnated filters add a downstream layer of activated carbon media that \u003cstrong\u003eadsorbs\u003c\/strong\u003e (traps onto the surface of) gas-phase molecules as the air stream passes through. Per Koch, OdorKleen ES carries a minimum 60% carbon activation, which is the measure of how much VOC adsorption capacity the carbon layer can deliver before saturation. Higher activation = longer service life before odor breakthrough.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere OdorKleen ES fits:\u003c\/strong\u003e Office buildings dealing with cleaning chemical complaints, schools with art-room or science-lab odor transfer, hospitals managing waiting-room and visitor-area smells, painting facilities controlling solvent overspray drift to office areas, and historically smoking lounges (a classic OdorKleen application). For higher contaminant loads or specific gas removal (e.g., formaldehyde, hydrogen sulfide), Koch offers higher-grade gas-phase filters — \u003ca href=\"\/pages\/contact-us\"\u003econtact RTF support\u003c\/a\u003e if your application needs more capacity than OdorKleen ES.\u003c\/p\u003e\u003ch3\u003eSizing and ordering notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSizes are nominal.\u003c\/strong\u003e Per Koch K-100B (Multi-Pleat XL8 frame family), actual dimensions are typically 1\/2″ less than nominal in width and height, and 1\/4″ less in depth. Example: 20x25x1 nominal = 19-1\/2″ x 24-1\/2″ x 3\/4″ actual.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMatch your filter slot to the nominal size shown.\u003c\/strong\u003e Standard HVAC filter racks are sized to nominal dimensions; the actual filter slips into the rack with appropriate clearance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEach variant ships in the case quantity shown.\u003c\/strong\u003e Per Koch sheet notes: \"These products shipped in full cartons only.\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\"Call for Quote\" sizes:\u003c\/strong\u003e Some sizes are available by special order only. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e for these or for facility-scale orders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement schedule:\u003c\/strong\u003e Standard MERV 8 maintenance interval (typically 90 days for office HVAC), but odor breakthrough is the practical end-of-life signal — if you start smelling what the filter is supposed to be capturing, the carbon layer has saturated and it's time to replace, regardless of pressure drop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating temperature limit:\u003c\/strong\u003e Per Koch, continuous operation up to 120°F (49°C). Not suitable for high-temperature exhaust applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisposal:\u003c\/strong\u003e Filters loaded with VOCs may have specific disposal requirements depending on your jurisdiction and the contaminants captured. For painting facility or industrial applications, follow your local hazardous waste regulations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKoch product literature\u003c\/h3\u003e\u003cp\u003eDetailed product specifications, capacity tables, and complete performance data for Koch OdorKleen ES are published in the \u003cstrong\u003eKoch OdorKleen ES product bulletin\u003c\/strong\u003e: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/Koch_OdorKleen_ES_Feb_2024.pdf\" target=\"_blank\" rel=\"noopener\"\u003eOdorKleen ES Product Specification PDF\u003c\/a\u003e (Koch Filter Corporation). Per Koch, actual filter dimensions reference Bulletin K-100B (Multi-Pleat XL8 frame family). Both bulletins are available through Koch Filter Corporation (\u003ca href=\"https:\/\/www.kochfilter.com\/\" target=\"_blank\" rel=\"noopener\"\u003ekochfilter.com\u003c\/a\u003e) or by request through RTF.\u003c\/p\u003e","brand":"Koch","offers":[{"title":"12\"x24\"x1\" (Case of 12)","offer_id":44119112974458,"sku":"102-790-002","price":262.8,"currency_code":"USD","in_stock":true},{"title":"14\"x20\"x1\" (Case of 12)","offer_id":44119113007226,"sku":"102-790-003","price":239.88,"currency_code":"USD","in_stock":true},{"title":"16\"x20\"x1\" (Case of 12)","offer_id":44119113039994,"sku":"102-790-006","price":242.52,"currency_code":"USD","in_stock":true},{"title":"16\"x25\"x1\" (Case of 12)","offer_id":44119113072762,"sku":"102-790-007","price":256.56,"currency_code":"USD","in_stock":true},{"title":"20\"x20\"x1\" (Case of 12)","offer_id":44119113105530,"sku":"102-790-008","price":264.6,"currency_code":"USD","in_stock":true},{"title":"20\"x25\"x1\" (Case of 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6)","offer_id":44119115202682,"sku":"102-790-031","price":400.02,"currency_code":"USD","in_stock":true},{"title":"25\"x29\"x4\" (Call for Quote)","offer_id":44119115235450,"sku":"102-054-010","price":0.0,"currency_code":"USD","in_stock":false},{"title":"24\"x24\"x6\" (Case of 4)","offer_id":44119115268218,"sku":"102-790-041","price":543.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/getimage2_ed9ff42e-5f51-4c8d-befc-cf0d42fd313e.png?v=1777843466"},{"product_id":"koch-odorkleen-250-carbonweb-merv-8-carbon-particulate-filter","title":"Koch OdorKleen 250 (CarbonWeb High-Capacity MERV 8 Carbon Particulate Filter)","description":"\u003cp\u003ePer Koch Bulletin \u003cstrong\u003ePB-1201\u003c\/strong\u003e, the Koch \u003cstrong\u003eOdorKleen 250\u003c\/strong\u003e is a \u003cstrong\u003ehigh-capacity MERV 8 carbon\/particulate filter\u003c\/strong\u003e engineered for environments where standard carbon-impregnated filters reach saturation too quickly. The OdorKleen 250 contains \u003cstrong\u003e250 gsm of carbon product\u003c\/strong\u003e attached to a high-efficiency cotton-polyester media blend that includes \u003cstrong\u003egranular activated carbon plus activated alumina impregnated with potassium permanganate\u003c\/strong\u003e. The \"250\" in the product name refers to that carbon load — substantially higher than the carbon impregnation in standard carbon pleated filters.\u003c\/p\u003e\u003ch3\u003eWhat you get: high-capacity carbon-particulate panel filters, sold by the case\u003c\/h3\u003e\u003cp\u003eEach variant is a \u003cstrong\u003esingle OdorKleen 250 pleated panel\u003c\/strong\u003e with a recyclable beverage board frame, integrated CarbonWeb® gas-phase media, and a particulate-capture downstream layer. Available in 2″ and 4″ depths across multiple face sizes. The price you see for each variant is the \u003cstrong\u003efull case price\u003c\/strong\u003e:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2″ depth filters (18 sizes):\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e10″x20″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x20″x2″\u003c\/strong\u003e — available by quote. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e for current pricing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x24″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e14″x20″x2″\u003c\/strong\u003e — available by quote. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e for current pricing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e14″x25″x2″\u003c\/strong\u003e — available by quote. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e for current pricing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e15″x20″x2″\u003c\/strong\u003e — available by quote. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e for current pricing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x16″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x20″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x24″x2″\u003c\/strong\u003e — available by quote. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e for current pricing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x25″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x30″x2″\u003c\/strong\u003e — available by quote. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e for current pricing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e18″x20″x2″\u003c\/strong\u003e — available by quote. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e for current pricing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e18″x24″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x20″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x24″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x25″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24″x24″x2″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e25″x25″x2″\u003c\/strong\u003e — available by quote. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e for current pricing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4″ depth filters (9 sizes):\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x24″x4″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x20″x4″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x24″x4″\u003c\/strong\u003e — available by quote. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e for current pricing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x25″x4″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e18″x24″x4″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x20″x4″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x24″x4″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x25″x4″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24″x24″x4″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCarbonWeb® gas-phase filtration technology\u003c\/h3\u003e\u003cp\u003eOdorKleen 250 uses \u003cstrong\u003eCarbonWeb® technology\u003c\/strong\u003e — carbon-filled media fibers engineered for low resistance and high adsorption capacity:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGas-phase carbon:\u003c\/strong\u003e 60% activity granular activated carbon. Per Koch, the gas-phase carbon has \u003cem\u003e\"nearly five million square feet of surface area per pound.\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdsorption efficiency:\u003c\/strong\u003e The bonded carbon fibers use only approximately 1% of the carbon's surface area — leaving roughly 99% available for gas contaminant adsorption. This is one of the key differentiators Koch cites versus competitive carbon filter designs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTortuous airflow path:\u003c\/strong\u003e Gas contaminants pass through tortuous pathways inside the media, ensuring intimate contact between contaminant molecules and the carbon adsorption surface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePatented anti-settling design:\u003c\/strong\u003e OdorKleen 250 carries a patented \"media-carbon will not settle\" feature that maintains adsorption performance through the filter's service life without the carbon migrating or settling in transit or operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePotassium permanganate alumina layer:\u003c\/strong\u003e In addition to the activated carbon, OdorKleen 250 includes activated alumina impregnated with potassium permanganate — an oxidizing chemistry that targets specific gaseous pollutants (formaldehyde, hydrogen sulfide, sulfur dioxide, nitrogen dioxide) that activated carbon alone is less effective against.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParticulate capture layer:\u003c\/strong\u003e A 3\/8″ light\/medium duty cotton-polyester blend with carbon-filled fibers handles particulate contaminants. The combination of the two distinct medias gives the filter MERV 8 efficiency while maintaining a low pressure drop.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOdorKleen 250 construction and specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm factor:\u003c\/strong\u003e Extended-surface pleated panel with two-stage media (gas-phase + particulate)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e 100% synthetic carbon-impregnated mechanical media, 250 gsm carbon load\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia support:\u003c\/strong\u003e Self-supporting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e High wet-strength beverage board with \u003cstrong\u003ecross-member designed to increase filter strength and rigidity\u003c\/strong\u003e. \u003cstrong\u003eFrame is recyclable.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMERV rating:\u003c\/strong\u003e MERV 8 per ASHRAE Test Standard 52.2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum continuous operating temperature:\u003c\/strong\u003e 180°F (93°C) — substantially higher than standard carbon pleated filters\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Final Resistance:\u003c\/strong\u003e 1.2″ w.g.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable depths:\u003c\/strong\u003e 1″, 2″, and 4″ per Koch PB-1201; this RTF lineup carries 2″ and 4″. For 1″ depth sizes, \u003ca href=\"\/pages\/quote\"\u003erequest a quote\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisposability:\u003c\/strong\u003e Single-use disposable; not washable\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePerformance data by depth\u003c\/h3\u003e\u003ctable style=\"border-collapse:collapse;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eFilter Depth\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eTest Air Velocity\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eInitial Resistance\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eFinal Resistance\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003ePleats \/ Linear Foot\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e1″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e300 FPM\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.35″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e1.2″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e12\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e2″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e500 FPM\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.41″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e1.2″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e10\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e4″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e500 FPM\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.33″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e1.2″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eFor rated capacity (CFM) at 300 FPM and 500 FPM face velocities for the specific size you're ordering, refer to the Koch bulletin linked at the bottom of this page or contact RTF for assistance.\u003c\/p\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eOdorKleen 250 is specified for environments with heavier gas-phase contaminant loads than standard carbon-impregnated filters can handle:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eChemical Storage\u003c\/li\u003e\n\u003cli\u003eLaboratories\u003c\/li\u003e\n\u003cli\u003eMuseums and archives\u003c\/li\u003e\n\u003cli\u003ePharmaceutical\u003c\/li\u003e\n\u003cli\u003eHospitals\u003c\/li\u003e\n\u003cli\u003eAirports\u003c\/li\u003e\n\u003cli\u003eIndustrial Facilities\u003c\/li\u003e\n\u003cli\u003eCommercial Office Buildings\u003c\/li\u003e\n\u003cli\u003eSports Arenas\u003c\/li\u003e\n\u003cli\u003eSmoking Lounges\u003c\/li\u003e\n\u003cli\u003eCasinos\u003c\/li\u003e\n\u003cli\u003eLaminate Adhesive (manufacturing)\u003c\/li\u003e\n\u003cli\u003eIAQ Emergency response\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOdorKleen 250 vs OdorKleen ES — choosing the right tier\u003c\/h3\u003e\u003cp\u003eKoch produces two carbon-impregnated MERV 8 pleated filters in this product family. Choosing between them depends on contaminant load, operating conditions, and budget:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOdorKleen 250 (this product):\u003c\/strong\u003e 250 gsm carbon load with CarbonWeb® technology and potassium permanganate alumina. \u003cstrong\u003eMax operating temp 180°F.\u003c\/strong\u003e Specified for chemical storage, laboratories, museums, pharmaceutical, IAQ emergency — environments where standard carbon impregnation saturates too quickly or where elevated temperatures rule out standard frames.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/koch-odorkleen-es-merv-8-carbon-particulate-filter\"\u003eOdorKleen ES\u003c\/a\u003e:\u003c\/strong\u003e Standard carbon-impregnation pleated filter for lighter contaminant loads. \u003cstrong\u003eMax operating temp 120°F.\u003c\/strong\u003e Specified for office buildings, schools, hospitals, smoking lounges — standard HVAC environments with light to moderate odor and VOC loads.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIf you're unsure which fits your application, \u003ca href=\"\/pages\/contact-us\"\u003econtact RTF support\u003c\/a\u003e with your contaminant profile and operating conditions and we'll help match the right filter.\u003c\/p\u003e\u003ch3\u003eSizing and ordering notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSizes are nominal.\u003c\/strong\u003e Match nominal dimensions to your filter slot. Actual filter dimensions are typically 1\/2″ less than nominal in width and height per the Multi-Pleat XL8 frame family standard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2″ depth ships 12 per case; 4″ depth ships 6 per case.\u003c\/strong\u003e Carton quantity reflects shipping density — thicker filters take more space.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1″ depth available:\u003c\/strong\u003e Koch documents 1″ depth sizes (different SKU pattern). Not stocked in this RTF lineup — \u003ca href=\"\/pages\/quote\"\u003erequest a quote\u003c\/a\u003e for 1″ depths.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\"Call for Quote\" sizes:\u003c\/strong\u003e Several sizes are available by special order only. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e for these or for facility-scale orders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement schedule:\u003c\/strong\u003e Standard MERV 8 maintenance interval applies, but odor breakthrough is the practical end-of-life signal for any carbon filter. If contaminant odors return, the carbon and\/or potassium permanganate has saturated regardless of pressure drop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating temperature:\u003c\/strong\u003e Continuous operation up to 180°F (93°C). Significantly higher than OdorKleen ES (120°F) — suitable for elevated-temperature HVAC applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisposal:\u003c\/strong\u003e Filters loaded with VOCs, chemical contaminants, or industrial gases may have specific disposal requirements depending on captured contaminants. Follow your local hazardous waste regulations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame is recyclable\u003c\/strong\u003e once stripped of the spent media.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKoch product literature\u003c\/h3\u003e\u003cp\u003eDetailed product specifications, capacity tables, efficiency curves, and complete performance data for Koch OdorKleen 250 are published in \u003cstrong\u003eKoch Bulletin PB-1201\u003c\/strong\u003e: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/Koch_OdorKleen_250.pdf\" target=\"_blank\" rel=\"noopener\"\u003eOdorKleen 250 Product Specification PDF\u003c\/a\u003e (Koch Filter Corporation). Available through Koch Filter Corporation (\u003ca href=\"https:\/\/www.kochfilter.com\/\" target=\"_blank\" rel=\"noopener\"\u003ekochfilter.com\u003c\/a\u003e) or by request through RTF.\u003c\/p\u003e","brand":"Koch","offers":[{"title":"10\"x20\"x2\" (Case of 12)","offer_id":44119115497594,"sku":"102-792-011","price":590.88,"currency_code":"USD","in_stock":true},{"title":"12\"x20\"x2\" (Call for Quote)","offer_id":44119115530362,"sku":"102-792-002","price":0.0,"currency_code":"USD","in_stock":false},{"title":"12\"x24\"x2\" (Case of 12)","offer_id":44119115563130,"sku":"102-792-012","price":613.08,"currency_code":"USD","in_stock":true},{"title":"14\"x20\"x2\" (Call for Quote)","offer_id":44119115595898,"sku":"102-792-013","price":0.0,"currency_code":"USD","in_stock":false},{"title":"14\"x25\"x2\" (Call for Quote)","offer_id":44119115628666,"sku":"102-792-014","price":0.0,"currency_code":"USD","in_stock":false},{"title":"15\"x20\"x2\" (Call for Quote)","offer_id":44119115661434,"sku":"102-792-015","price":0.0,"currency_code":"USD","in_stock":false},{"title":"16\"x16\"x2\" (Case of 12)","offer_id":44119115694202,"sku":"102-792-005","price":831.84,"currency_code":"USD","in_stock":true},{"title":"16\"x20\"x2\" (Case of 12)","offer_id":44119115726970,"sku":"102-792-016","price":647.88,"currency_code":"USD","in_stock":true},{"title":"16\"x24\"x2\" (Call for Quote)","offer_id":44119115759738,"sku":"102-792-053","price":0.0,"currency_code":"USD","in_stock":false},{"title":"16\"x25\"x2\" (Case of 12)","offer_id":44119115792506,"sku":"102-792-017","price":775.8,"currency_code":"USD","in_stock":true},{"title":"16\"x30\"x2\" (Call for Quote)","offer_id":44119115825274,"sku":"102-792-058","price":0.0,"currency_code":"USD","in_stock":false},{"title":"18\"x20\"x2\" (Call for Quote)","offer_id":44119115858042,"sku":"102-792-060","price":0.0,"currency_code":"USD","in_stock":false},{"title":"18\"x24\"x2\" (Case of 12)","offer_id":44119115890810,"sku":"102-792-018","price":1004.28,"currency_code":"USD","in_stock":true},{"title":"20\"x20\"x2\" (Case of 12)","offer_id":44119115923578,"sku":"102-792-019","price":792.6,"currency_code":"USD","in_stock":true},{"title":"20\"x24\"x2\" (Case of 12)","offer_id":44119115956346,"sku":"102-792-020","price":981.48,"currency_code":"USD","in_stock":true},{"title":"20\"x25\"x2\" (Case of 12)","offer_id":44119115989114,"sku":"102-792-021","price":876.12,"currency_code":"USD","in_stock":true},{"title":"24\"x24\"x2\" (Case of 12)","offer_id":44119116021882,"sku":"102-792-022","price":1052.16,"currency_code":"USD","in_stock":true},{"title":"25\"x25\"x2\" (Call for Quote)","offer_id":44119116054650,"sku":"102-792-050","price":0.0,"currency_code":"USD","in_stock":false},{"title":"12\"x24\"x4\" (Case of 6)","offer_id":44119116087418,"sku":"102-792-023","price":572.7,"currency_code":"USD","in_stock":true},{"title":"16\"x20\"x4\" (Case of 6)","offer_id":44119116120186,"sku":"102-792-025","price":533.46,"currency_code":"USD","in_stock":true},{"title":"16\"x24\"x4\" (Call for Quote)","offer_id":44119116152954,"sku":"102-792-045","price":0.0,"currency_code":"USD","in_stock":false},{"title":"16\"x25\"x4\" (Case of 6)","offer_id":44119116185722,"sku":"102-792-026","price":728.94,"currency_code":"USD","in_stock":true},{"title":"18\"x24\"x4\" (Case of 6)","offer_id":44119116218490,"sku":"102-792-027","price":742.8,"currency_code":"USD","in_stock":true},{"title":"20\"x20\"x4\" (Case of 6)","offer_id":44119116251258,"sku":"102-792-028","price":757.5,"currency_code":"USD","in_stock":true},{"title":"20\"x24\"x4\" (Case of 6)","offer_id":44119116284026,"sku":"102-792-029","price":867.54,"currency_code":"USD","in_stock":true},{"title":"20\"x25\"x4\" (Case of 6)","offer_id":44119116316794,"sku":"102-792-030","price":832.92,"currency_code":"USD","in_stock":true},{"title":"24\"x24\"x4\" (Case of 6)","offer_id":44119116349562,"sku":"102-792-031","price":852.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/getimage2_31d51fe8-226b-4bd8-b8dd-ed0cdede0f28.png?v=1777844632"},{"product_id":"koch-odorkleen-600-carbonweb-merv-10-carbon-particulate-filter","title":"Koch OdorKleen 600 (CarbonWeb High-Efficiency MERV 10 Carbon Particulate Filter)","description":"\u003cp\u003ePer the Koch OdorKleen 600 product bulletin, the Koch \u003cstrong\u003eOdorKleen 600\u003c\/strong\u003e is the \u003cstrong\u003ehighest-efficiency carbon\/alumina pleated filter in the OdorKleen product family\u003c\/strong\u003e — a \u003cstrong\u003eMERV 10 carbon\/alumina pleated filter\u003c\/strong\u003e engineered for environments where specific gaseous contaminants need to be targeted, not just general odors. The OdorKleen 600 contains \u003cstrong\u003e592 gsm of granular activated carbon and activated alumina impregnated with potassium permanganate\u003c\/strong\u003e — a \u003cstrong\u003e50\/50 blend of CTC 60 carbon and activated alumina with 5% potassium permanganate (KMnO\u003csub\u003e4\u003c\/sub\u003e)\u003c\/strong\u003e. This specific chemistry is designed to \u003cstrong\u003eremove ammonia, formaldehyde, sulfur dioxide, and hydrogen sulfide\u003c\/strong\u003e — gases that activated carbon alone is less effective against.\u003c\/p\u003e\u003ch3\u003eWhat you get: high-efficiency carbon\/alumina panel filters, sold by the case\u003c\/h3\u003e\u003cp\u003eEach variant is a \u003cstrong\u003esingle OdorKleen 600 pleated panel\u003c\/strong\u003e with a recyclable beverage board frame, integrated CarbonWeb® gas-phase media, and a polyester particulate-capture downstream layer. Available in 1″, 2″, and 4″ depths across multiple face sizes. The price you see for each variant is the \u003cstrong\u003efull case price\u003c\/strong\u003e:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1″ depth filters (8 sizes):\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x24″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x20″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x25″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e18″x24″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x20″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x24″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x25″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24″x24″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2″ depth filters (8 sizes):\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x24″x2″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x20″x2″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x25″x2″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e18″x24″x2″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x20″x2″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x24″x2″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x25″x2″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24″x24″x2″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4″ depth filters (8 sizes):\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x24″x4″\u003c\/strong\u003e — \u003cstrong\u003e3 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x20″x4″\u003c\/strong\u003e — \u003cstrong\u003e3 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x25″x4″\u003c\/strong\u003e — \u003cstrong\u003e3 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e18″x24″x4″\u003c\/strong\u003e — \u003cstrong\u003e3 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x20″x4″\u003c\/strong\u003e — \u003cstrong\u003e3 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x24″x4″\u003c\/strong\u003e — \u003cstrong\u003e3 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x25″x4″\u003c\/strong\u003e — \u003cstrong\u003e3 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24″x24″x4″\u003c\/strong\u003e — \u003cstrong\u003e3 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCarbonWeb® gas-phase filtration technology\u003c\/h3\u003e\u003cp\u003eOdorKleen 600 uses \u003cstrong\u003eCarbonWeb® technology\u003c\/strong\u003e — carbon-filled media fibers engineered for low resistance and high adsorption capacity:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon\/alumina blend:\u003c\/strong\u003e 50\/50 blend of CTC 60 granular activated carbon and activated alumina with 5% potassium permanganate (KMnO\u003csub\u003e4\u003c\/sub\u003e). Per Koch, this combined chemistry has \u003cem\u003e\"nearly five million square feet of surface area per pound.\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon load:\u003c\/strong\u003e 592 gsm — substantially higher than OdorKleen 250 (250 gsm) or standard carbon-impregnated pleated filters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdsorption efficiency:\u003c\/strong\u003e The bonded carbon fibers use only approximately 1% of the carbon's surface area, leaving roughly 99% available for gas contaminant adsorption.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParticulate capture layer:\u003c\/strong\u003e Polyester blend efficiency layer captures particulate contaminants. The combination of the carbon\/alumina gas-phase media plus the polyester particulate layer gives the filter \u003cstrong\u003eMERV 10 efficiency while maintaining low pressure drop\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOdorKleen 600 construction and specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm factor:\u003c\/strong\u003e Extended-surface pleated panel with two-stage media (gas-phase + particulate)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e 100% synthetic carbon-impregnated mechanical media; 592 gsm carbon\/alumina load with 5% KMnO\u003csub\u003e4\u003c\/sub\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia support:\u003c\/strong\u003e Self-supporting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e High wet-strength beverage board with \u003cstrong\u003ecross-member designed to increase filter strength and rigidity\u003c\/strong\u003e. \u003cstrong\u003eFrame is recyclable.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMERV rating:\u003c\/strong\u003e MERV 10 per ASHRAE Test Standard 52.2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUL certification:\u003c\/strong\u003e Underwriters Laboratories classified to UL 900\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum continuous operating temperature:\u003c\/strong\u003e 180°F (93°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Final Resistance:\u003c\/strong\u003e 1.2″ w.g.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable depths:\u003c\/strong\u003e 1″, 2″, and 4″\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisposability:\u003c\/strong\u003e Single-use disposable; not washable\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePerformance data by depth\u003c\/h3\u003e\u003ctable style=\"border-collapse:collapse;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eFilter Depth\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eTest Air Velocity\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eInitial Resistance\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eRecommended Final Resistance\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003ePleats \/ Linear Foot\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e1″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e300 FPM\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.32″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e1.2″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e2″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e500 FPM\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.45″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e1.2″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e4″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e500 FPM\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.44″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e1.2″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eNote the higher pleat density on 1″ (15 pleats per linear foot) and 2″ (14 pleats per linear foot) compared to OdorKleen ES and 250 (12 and 10 respectively at the same depths) — more pleats per foot means more media area for both particulate capture and gas-phase adsorption.\u003c\/p\u003e\u003ch3\u003eTargeted gaseous contaminants\u003c\/h3\u003e\u003cp\u003eWhere activated carbon alone handles general VOCs, the OdorKleen 600's carbon plus alumina plus 5% potassium permanganate chemistry is engineered to specifically remove four gaseous contaminants:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmmonia (NH\u003csub\u003e3\u003c\/sub\u003e):\u003c\/strong\u003e Alkaline gas common in pharmaceutical, agricultural, and laboratory environments. Activated alumina with KMnO\u003csub\u003e4\u003c\/sub\u003e provides the acid surface chemistry needed to capture ammonia — standard activated carbon does not adsorb ammonia effectively.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormaldehyde (HCHO):\u003c\/strong\u003e Off-gas from new construction materials, laminate adhesives, embalming, and some manufacturing processes. KMnO\u003csub\u003e4\u003c\/sub\u003e oxidizes formaldehyde to less harmful compounds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSulfur dioxide (SO\u003csub\u003e2\u003c\/sub\u003e):\u003c\/strong\u003e Combustion byproduct and industrial process contaminant. KMnO\u003csub\u003e4\u003c\/sub\u003e oxidation chemistry is particularly effective on sulfur compounds.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydrogen sulfide (H\u003csub\u003e2\u003c\/sub\u003eS):\u003c\/strong\u003e Rotten-egg odor at low concentrations, toxic at higher levels. Common in wastewater treatment, oil \u0026amp; gas, and certain industrial processes. KMnO\u003csub\u003e4\u003c\/sub\u003e oxidation handles H\u003csub\u003e2\u003c\/sub\u003eS very effectively.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor sites with these specific contaminants, OdorKleen 600 outperforms standard carbon-only filters because activated carbon alone is weak on ammonia and slow on certain sulfur compounds.\u003c\/p\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eOdorKleen 600 is specified for environments with heavy gas-phase contaminant loads and where specific gases need to be targeted:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eChemical Storage\u003c\/li\u003e\n\u003cli\u003eLaboratories\u003c\/li\u003e\n\u003cli\u003eMuseums and Archives\u003c\/li\u003e\n\u003cli\u003ePharmaceutical\u003c\/li\u003e\n\u003cli\u003eHospitals\u003c\/li\u003e\n\u003cli\u003eAirports\u003c\/li\u003e\n\u003cli\u003eIndustrial Facilities\u003c\/li\u003e\n\u003cli\u003eCommercial Office Buildings\u003c\/li\u003e\n\u003cli\u003eSports Arenas\u003c\/li\u003e\n\u003cli\u003eSmoking Lounges\u003c\/li\u003e\n\u003cli\u003eCasinos\u003c\/li\u003e\n\u003cli\u003eLaminate Adhesives (manufacturing)\u003c\/li\u003e\n\u003cli\u003eIAQ Emergency response\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eChoosing the right OdorKleen tier\u003c\/h3\u003e\u003cp\u003eKoch produces three carbon-impregnated pleated filters in the OdorKleen product family. Choosing between them depends on contaminant load, target gases, particulate efficiency requirements, and budget:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOdorKleen 600 (this product):\u003c\/strong\u003e \u003cstrong\u003eMERV 10\u003c\/strong\u003e, 592 gsm carbon\/alumina blend with 5% KMnO\u003csub\u003e4\u003c\/sub\u003e. Targets ammonia, formaldehyde, SO\u003csub\u003e2\u003c\/sub\u003e, H\u003csub\u003e2\u003c\/sub\u003eS specifically. Highest particulate efficiency in the family. Use when specific gaseous contaminants are the concern, not just general odors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/koch-odorkleen-250-carbonweb-merv-8-carbon-particulate-filter\"\u003eOdorKleen 250\u003c\/a\u003e:\u003c\/strong\u003e MERV 8, 250 gsm CarbonWeb® carbon with potassium permanganate alumina. General high-capacity carbon filter for heavy VOC loads. Use when you need substantial carbon capacity but don't need the higher MERV or specific gas chemistry of the 600.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/koch-odorkleen-es-merv-8-carbon-particulate-filter\"\u003eOdorKleen ES\u003c\/a\u003e:\u003c\/strong\u003e MERV 8, basic carbon impregnation. Standard carbon-impregnation pleated filter for lighter contaminant loads. Use for office buildings, schools, and standard HVAC environments with light to moderate odor and VOC loads.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIf you're unsure which tier fits your application, \u003ca href=\"\/pages\/contact-us\"\u003econtact RTF support\u003c\/a\u003e with your contaminant profile, target gases, and operating conditions, and we'll help match the right filter.\u003c\/p\u003e\u003ch3\u003eSizing and ordering notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSizes are nominal.\u003c\/strong\u003e Match nominal dimensions to your filter slot. Actual filter dimensions are typically 1\/2″ less than nominal in width and height per the Multi-Pleat XL8 frame family standard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarton qty varies by depth:\u003c\/strong\u003e 1″ ships 12 per case, 2″ ships 6 per case, 4″ ships 3 per case — reflecting both filter weight (heavier with more carbon) and shipping density (thicker filters take more space).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdditional small sizes available:\u003c\/strong\u003e Per Koch, the OdorKleen 600 product line includes 12″x12″x1″ and 12″x12″x2″ sizes not stocked in this RTF lineup. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e for these or for custom sizes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement schedule:\u003c\/strong\u003e Standard MERV 10 maintenance interval applies, but odor breakthrough or specific-gas breakthrough is the practical end-of-life signal — if ammonia, formaldehyde, sulfur, or hydrogen sulfide odors return, the carbon and\/or KMnO\u003csub\u003e4\u003c\/sub\u003e alumina has saturated regardless of pressure drop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating temperature:\u003c\/strong\u003e Continuous operation up to 180°F (93°C). Suitable for elevated-temperature HVAC applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisposal:\u003c\/strong\u003e Filters loaded with target gases (ammonia, formaldehyde, SO\u003csub\u003e2\u003c\/sub\u003e, H\u003csub\u003e2\u003c\/sub\u003eS) or other industrial contaminants may have specific disposal requirements depending on captured contaminants and quantities. Follow your local hazardous waste regulations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame is recyclable\u003c\/strong\u003e once stripped of the spent media.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUL 900 classified\u003c\/strong\u003e — meets standard UL fire and flammability classification for HVAC air filters.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKoch product literature\u003c\/h3\u003e\u003cp\u003eDetailed product specifications, capacity tables, efficiency curves, and complete performance data for Koch OdorKleen 600 are published in the \u003cstrong\u003eKoch OdorKleen 600 product bulletin\u003c\/strong\u003e: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/Koch_OdorKleen_600.pdf\" target=\"_blank\" rel=\"noopener\"\u003eOdorKleen 600 Product Specification PDF\u003c\/a\u003e (Koch Filter Corporation). Available through Koch Filter Corporation (\u003ca href=\"https:\/\/www.kochfilter.com\/\" target=\"_blank\" rel=\"noopener\"\u003ekochfilter.com\u003c\/a\u003e) or by request through RTF.\u003c\/p\u003e","brand":"Koch","offers":[{"title":"12\"x24\"x1\" (Case of 12)","offer_id":44119116578938,"sku":"102-796-002","price":1161.96,"currency_code":"USD","in_stock":true},{"title":"16\"x20\"x1\" (Case of 12)","offer_id":44119116611706,"sku":"102-796-006","price":1230.48,"currency_code":"USD","in_stock":true},{"title":"16\"x25\"x1\" (Case of 12)","offer_id":44119116644474,"sku":"102-796-007","price":1424.4,"currency_code":"USD","in_stock":true},{"title":"18\"x24\"x1\" (Case of 12)","offer_id":44119116677242,"sku":"102-796-18241","price":1519.08,"currency_code":"USD","in_stock":true},{"title":"20\"x20\"x1\" (Case of 12)","offer_id":44119116710010,"sku":"102-796-008","price":1427.16,"currency_code":"USD","in_stock":true},{"title":"20\"x24\"x1\" (Case of 12)","offer_id":44119116742778,"sku":"102-796-20241","price":1562.04,"currency_code":"USD","in_stock":true},{"title":"20\"x25\"x1\" (Case of 12)","offer_id":44119116775546,"sku":"102-796-009","price":1637.4,"currency_code":"USD","in_stock":true},{"title":"24\"x24\"x1\" (Case of 12)","offer_id":44119116808314,"sku":"102-796-010","price":1732.08,"currency_code":"USD","in_stock":true},{"title":"12\"x24\"x2\" (Case of 6)","offer_id":44119116841082,"sku":"102-796-012","price":1177.74,"currency_code":"USD","in_stock":true},{"title":"16\"x20\"x2\" (Case of 6)","offer_id":44119116873850,"sku":"102-796-016","price":1228.56,"currency_code":"USD","in_stock":true},{"title":"16\"x25\"x2\" (Case of 6)","offer_id":44119116906618,"sku":"102-796-017","price":1417.56,"currency_code":"USD","in_stock":true},{"title":"18\"x24\"x2\" (Case of 6)","offer_id":44119116939386,"sku":"102-796-018","price":1582.14,"currency_code":"USD","in_stock":true},{"title":"20\"x20\"x2\" (Case of 6)","offer_id":44119116972154,"sku":"102-796-019","price":1460.64,"currency_code":"USD","in_stock":true},{"title":"20\"x24\"x2\" (Case of 6)","offer_id":44119117004922,"sku":"102-796-020","price":1635.9,"currency_code":"USD","in_stock":true},{"title":"20\"x25\"x2\" (Case of 6)","offer_id":44119117037690,"sku":"102-796-021","price":1681.98,"currency_code":"USD","in_stock":true},{"title":"24\"x24\"x2\" (Case of 6)","offer_id":44119117070458,"sku":"102-796-022","price":1759.08,"currency_code":"USD","in_stock":true},{"title":"12\"x24\"x4\" (Case of 3)","offer_id":44119117103226,"sku":"102-796-023","price":1160.91,"currency_code":"USD","in_stock":true},{"title":"16\"x20\"x4\" (Case of 3)","offer_id":44119117135994,"sku":"102-796-025","price":1249.71,"currency_code":"USD","in_stock":true},{"title":"16\"x25\"x4\" (Case of 3)","offer_id":44119117168762,"sku":"102-796-026","price":1467.03,"currency_code":"USD","in_stock":true},{"title":"18\"x24\"x4\" (Case of 3)","offer_id":44119117201530,"sku":"102-796-027","price":1610.91,"currency_code":"USD","in_stock":true},{"title":"20\"x20\"x4\" (Case of 3)","offer_id":44119117234298,"sku":"102-796-028","price":1484.79,"currency_code":"USD","in_stock":true},{"title":"20\"x24\"x4\" (Case of 3)","offer_id":44119117267066,"sku":"102-796-029","price":1687.53,"currency_code":"USD","in_stock":true},{"title":"20\"x25\"x4\" (Case of 3)","offer_id":44119117299834,"sku":"102-796-030","price":1746.21,"currency_code":"USD","in_stock":true},{"title":"24\"x24\"x4\" (Case of 3)","offer_id":44119117332602,"sku":"102-796-031","price":1949.01,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/getimage2_5fde33ba-915f-40f0-a093-41e8194d3fea.jpg?v=1777845748"},{"product_id":"koch-odorkleen-200-m13-merv-13-carbon-particulate-filter","title":"Koch OdorKleen 200\/M13 (MERV 13 High-Capacity Carbon Particulate Filter)","description":"\u003cp\u003ePer the Koch OdorKleen 200\/M13 product bulletin, the Koch \u003cstrong\u003eOdorKleen 200\/M13\u003c\/strong\u003e is a \u003cstrong\u003eMERV 13 carbon\/alumina pleated filter\u003c\/strong\u003e engineered for environments where \u003cstrong\u003efine particulate filtration AND gaseous contaminant removal\u003c\/strong\u003e both matter. The OdorKleen 200\/M13 contains \u003cstrong\u003e200 gsm of granular activated carbon\u003c\/strong\u003e attached to a MERV 13 filtration layer, and is designed to remove \u003cstrong\u003eammonia, formaldehyde, sulfur dioxide, and hydrogen sulfide\u003c\/strong\u003e while delivering MERV 13 particulate efficiency.\u003c\/p\u003e\u003ch3\u003eWhat you get: MERV 13 carbon\/particulate panel filters, sold by the case\u003c\/h3\u003e\u003cp\u003eEach variant is a \u003cstrong\u003esingle OdorKleen 200\/M13 pleated panel\u003c\/strong\u003e with a recyclable beverage board frame, integrated carbon-impregnated gas-phase media, and a polyester MERV 13 particulate-capture layer. Available in 1″, 2″, and 4″ depths. The price you see for each variant is the \u003cstrong\u003efull case price\u003c\/strong\u003e:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1″ depth filters (8 sizes):\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x24″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x20″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x25″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e18″x24″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x20″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x24″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x25″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24″x24″x1″\u003c\/strong\u003e — \u003cstrong\u003e12 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2″ depth filters (8 sizes):\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x24″x2″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x20″x2″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x25″x2″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e18″x24″x2″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x20″x2″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x24″x2″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x25″x2″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24″x24″x2″\u003c\/strong\u003e — \u003cstrong\u003e6 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4″ depth filters (8 sizes):\u003c\/strong\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x24″x4″\u003c\/strong\u003e — \u003cstrong\u003e3 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x20″x4″\u003c\/strong\u003e — \u003cstrong\u003e3 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e16″x25″x4″\u003c\/strong\u003e — \u003cstrong\u003e3 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e18″x24″x4″\u003c\/strong\u003e — \u003cstrong\u003e3 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x20″x4″\u003c\/strong\u003e — \u003cstrong\u003e3 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x24″x4″\u003c\/strong\u003e — \u003cstrong\u003e3 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x25″x4″\u003c\/strong\u003e — \u003cstrong\u003e3 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e24″x24″x4″\u003c\/strong\u003e — \u003cstrong\u003e3 filters per case\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWhy MERV 13 plus carbon\u003c\/h3\u003e\u003cp\u003eStandard MERV 13 pleated filters capture fine particulate (smoke, fine dust, virus-sized particles) but do nothing for gas-phase contaminants — odors, VOCs, and the specific gases that activated carbon is designed to adsorb. Standard carbon-impregnated filters target gases but typically deliver only MERV 8 particulate efficiency, missing finer particles.\u003c\/p\u003e\u003cp\u003eThe OdorKleen 200\/M13 is engineered for applications that need both:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMERV 13 particulate efficiency\u003c\/strong\u003e — captures fine particles down to sub-micron sizes including wildfire smoke, virus-laden aerosols, and fine industrial particulate\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e200 gsm carbon load\u003c\/strong\u003e — provides gas-phase adsorption capacity for odors, VOCs, and the specific gases listed in Koch's features (ammonia, formaldehyde, sulfur dioxide, hydrogen sulfide)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTradeoff:\u003c\/strong\u003e The MERV 13 layer is denser than the MERV 10 layer in OdorKleen 600, which costs airflow. The 200\/M13's 2″ depth has higher initial resistance (0.53″ w.g. at 500 FPM) than the 600's 2″ depth (0.45″ w.g.). Verify your HVAC system can handle the higher pressure drop before specifying.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOdorKleen 200\/M13 construction and specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm factor:\u003c\/strong\u003e Extended-surface pleated panel with two-stage media (gas-phase carbon + MERV 13 particulate layer)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon load:\u003c\/strong\u003e 200 gsm of granular activated carbon (per Koch). Koch describes the carbon as having \u003cem\u003e\"nearly five million square feet of surface area per pound.\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParticulate layer:\u003c\/strong\u003e Polyester blend MERV 13 efficiency layer\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e 100% synthetic carbon-impregnated mechanical media\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia support:\u003c\/strong\u003e Self-supporting\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e High wet-strength beverage board with \u003cstrong\u003ecross-member designed to increase filter strength and rigidity\u003c\/strong\u003e. \u003cstrong\u003eFrame is recyclable.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMERV rating:\u003c\/strong\u003e MERV 13 per ASHRAE Test Standard 52.2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUL certification:\u003c\/strong\u003e Underwriters Laboratories classified to UL 900\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum continuous operating temperature:\u003c\/strong\u003e 180°F (93°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended Final Resistance:\u003c\/strong\u003e 1.2″ w.g.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable depths:\u003c\/strong\u003e 1″, 2″, and 4″\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisposability:\u003c\/strong\u003e Single-use disposable; not washable\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePerformance data by depth\u003c\/h3\u003e\u003ctable style=\"border-collapse:collapse;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eFilter Depth\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eTest Air Velocity\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eInitial Resistance\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eRecommended Final Resistance\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003ePleats \/ Linear Foot\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e1″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e300 FPM\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.34″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e1.2″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e2″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e500 FPM\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.53″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e1.2″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e14\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e4″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e500 FPM\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.48″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e1.2″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eThe MERV 13 particulate layer delivers finer filtration than the MERV 8 or MERV 10 layers in other OdorKleen products, with corresponding higher pressure drop. Pleat density at 1″ (15 pleats per linear foot) and 2″ (14 pleats per linear foot) provides the media area needed for both fine particulate capture and gas adsorption.\u003c\/p\u003e\u003ch3\u003eTargeted gaseous contaminants\u003c\/h3\u003e\u003cp\u003ePer Koch's product features, OdorKleen 200\/M13 is designed to remove:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAmmonia (NH\u003csub\u003e3\u003c\/sub\u003e)\u003c\/strong\u003e — alkaline gas common in pharmaceutical, agricultural, and laboratory environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFormaldehyde (HCHO)\u003c\/strong\u003e — off-gas from new construction materials, laminate adhesives, embalming, and some manufacturing processes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSulfur dioxide (SO\u003csub\u003e2\u003c\/sub\u003e)\u003c\/strong\u003e — combustion byproduct and industrial process contaminant\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHydrogen sulfide (H\u003csub\u003e2\u003c\/sub\u003eS)\u003c\/strong\u003e — rotten-egg odor at low concentrations, toxic at higher levels; common in wastewater treatment, oil \u0026amp; gas, and certain industrial processes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eOdorKleen 200\/M13 is specified for environments needing both fine particulate filtration and gaseous contaminant control:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eChemical Storage\u003c\/li\u003e\n\u003cli\u003eLaboratories\u003c\/li\u003e\n\u003cli\u003eMuseums and Archives\u003c\/li\u003e\n\u003cli\u003ePharmaceutical\u003c\/li\u003e\n\u003cli\u003eHospitals\u003c\/li\u003e\n\u003cli\u003eAirports\u003c\/li\u003e\n\u003cli\u003eIndustrial Facilities\u003c\/li\u003e\n\u003cli\u003eCommercial Office Buildings\u003c\/li\u003e\n\u003cli\u003eSports Arenas\u003c\/li\u003e\n\u003cli\u003eSmoking Lounges\u003c\/li\u003e\n\u003cli\u003eCasinos\u003c\/li\u003e\n\u003cli\u003eLaminate Adhesives (manufacturing)\u003c\/li\u003e\n\u003cli\u003eIAQ Emergency response\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eChoosing the right OdorKleen tier\u003c\/h3\u003e\u003cp\u003eKoch produces four carbon-impregnated pleated filters in the OdorKleen product family. Choosing between them depends on whether you need higher particulate efficiency or higher carbon capacity:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOdorKleen 200\/M13 (this product):\u003c\/strong\u003e \u003cstrong\u003eMERV 13\u003c\/strong\u003e, 200 gsm carbon. Highest particulate efficiency in the family. Use when fine particulate (wildfire smoke, virus aerosols, fine industrial dust) is the primary concern AND gas-phase capacity is needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/koch-odorkleen-600-carbonweb-merv-10-carbon-particulate-filter\"\u003eOdorKleen 600\u003c\/a\u003e:\u003c\/strong\u003e MERV 10, 592 gsm carbon\/alumina blend with 5% KMnO\u003csub\u003e4\u003c\/sub\u003e. \u003cstrong\u003eHighest carbon capacity\u003c\/strong\u003e in the family. Use when gas\/odor removal is the primary concern, especially for ammonia, formaldehyde, SO\u003csub\u003e2\u003c\/sub\u003e, H\u003csub\u003e2\u003c\/sub\u003eS in heavy industrial settings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/koch-odorkleen-250-carbonweb-merv-8-carbon-particulate-filter\"\u003eOdorKleen 250\u003c\/a\u003e:\u003c\/strong\u003e MERV 8, 250 gsm CarbonWeb® carbon with potassium permanganate alumina. Mid-tier general carbon filter for heavy VOC loads. Use for pharmaceutical, lab, museum applications without the MERV 13 requirement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/koch-odorkleen-es-merv-8-carbon-particulate-filter\"\u003eOdorKleen ES\u003c\/a\u003e:\u003c\/strong\u003e MERV 8, basic carbon impregnation. Standard carbon-impregnation pleated filter for lighter contaminant loads. Use for office buildings, schools, and standard HVAC environments with light to moderate odor and VOC loads.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIf you're unsure which tier fits your application, \u003ca href=\"\/pages\/contact-us\"\u003econtact RTF support\u003c\/a\u003e with your contaminant profile, target gases, particulate concerns, and operating conditions, and we'll help match the right filter.\u003c\/p\u003e\u003ch3\u003eSizing and ordering notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSizes are nominal.\u003c\/strong\u003e Match nominal dimensions to your filter slot. Actual filter dimensions are typically 1\/2″ less than nominal in width and height per the Multi-Pleat XL8 frame family standard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarton qty varies by depth:\u003c\/strong\u003e 1″ ships 12 per case, 2″ ships 6 per case, 4″ ships 3 per case — reflecting filter weight and shipping density.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdditional small sizes available:\u003c\/strong\u003e Per Koch, the OdorKleen 200\/M13 product line includes 12″x12″x1″ and 12″x12″x2″ sizes not stocked in this RTF lineup. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e for these or for custom sizes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePressure drop consideration:\u003c\/strong\u003e The MERV 13 layer means higher initial resistance than other OdorKleen products. Verify your HVAC system fan capacity can handle the airflow demand before specifying, especially for retrofit applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement schedule:\u003c\/strong\u003e Standard MERV 13 maintenance interval applies, but odor breakthrough or gas-specific breakthrough is the practical end-of-life signal — if ammonia, formaldehyde, sulfur, or hydrogen sulfide odors return, the carbon has saturated regardless of pressure drop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating temperature:\u003c\/strong\u003e Continuous operation up to 180°F (93°C). Suitable for elevated-temperature HVAC applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisposal:\u003c\/strong\u003e Filters loaded with target gases (ammonia, formaldehyde, SO\u003csub\u003e2\u003c\/sub\u003e, H\u003csub\u003e2\u003c\/sub\u003eS) or other industrial contaminants may have specific disposal requirements depending on captured contaminants and quantities. Follow your local hazardous waste regulations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame is recyclable\u003c\/strong\u003e once stripped of the spent media.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUL 900 classified\u003c\/strong\u003e — meets standard UL fire and flammability classification for HVAC air filters.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKoch product literature\u003c\/h3\u003e\u003cp\u003eDetailed product specifications, capacity tables, efficiency curves, and complete performance data for Koch OdorKleen 200\/M13 are published in the \u003cstrong\u003eKoch OdorKleen 200\/M13 product bulletin\u003c\/strong\u003e: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/Koch_OdorKleen_200-M13.pdf\" target=\"_blank\" rel=\"noopener\"\u003eOdorKleen 200\/M13 Product Specification PDF\u003c\/a\u003e (Koch Filter Corporation). Available through Koch Filter Corporation (\u003ca href=\"https:\/\/www.kochfilter.com\/\" target=\"_blank\" rel=\"noopener\"\u003ekochfilter.com\u003c\/a\u003e) or by request through RTF.\u003c\/p\u003e","brand":"Koch","offers":[{"title":"12\"x24\"x1\" (Case of 12)","offer_id":44119156555898,"sku":"102-793-002","price":841.32,"currency_code":"USD","in_stock":true},{"title":"16\"x20\"x1\" (Case of 12)","offer_id":44119156588666,"sku":"102-793-006","price":951.96,"currency_code":"USD","in_stock":true},{"title":"16\"x25\"x1\" (Case of 12)","offer_id":44119156621434,"sku":"102-793-007","price":1040.4,"currency_code":"USD","in_stock":true},{"title":"18\"x24\"x1\" (Case of 12)","offer_id":44119156654202,"sku":"102-793-18241","price":1106.88,"currency_code":"USD","in_stock":true},{"title":"20\"x20\"x1\" (Case of 12)","offer_id":44119156686970,"sku":"102-793-008","price":1128.96,"currency_code":"USD","in_stock":true},{"title":"20\"x24\"x1\" (Case of 12)","offer_id":44119156719738,"sku":"102-793-20241","price":1173.36,"currency_code":"USD","in_stock":true},{"title":"20\"x25\"x1\" (Case of 12)","offer_id":44119156752506,"sku":"102-793-009","price":1217.64,"currency_code":"USD","in_stock":true},{"title":"24\"x24\"x1\" (Case of 12)","offer_id":44119156785274,"sku":"102-793-010","price":1261.8,"currency_code":"USD","in_stock":true},{"title":"12\"x24\"x2\" (Case of 6)","offer_id":44119156818042,"sku":"102-793-012","price":865.92,"currency_code":"USD","in_stock":true},{"title":"16\"x20\"x2\" (Case of 6)","offer_id":44119156850810,"sku":"102-793-016","price":886.08,"currency_code":"USD","in_stock":true},{"title":"16\"x25\"x2\" (Case of 6)","offer_id":44119156883578,"sku":"102-793-017","price":985.32,"currency_code":"USD","in_stock":true},{"title":"18\"x24\"x2\" (Case of 6)","offer_id":44119156916346,"sku":"102-793-018","price":1107.6,"currency_code":"USD","in_stock":true},{"title":"20\"x20\"x2\" (Case of 6)","offer_id":44119156949114,"sku":"102-793-019","price":1006.92,"currency_code":"USD","in_stock":true},{"title":"20\"x24\"x2\" (Case of 6)","offer_id":44119156981882,"sku":"102-793-020","price":1121.94,"currency_code":"USD","in_stock":true},{"title":"20\"x25\"x2\" (Case of 6)","offer_id":44119157014650,"sku":"102-793-021","price":958.92,"currency_code":"USD","in_stock":true},{"title":"24\"x24\"x2\" (Case of 6)","offer_id":44119157047418,"sku":"102-793-022","price":1208.28,"currency_code":"USD","in_stock":true},{"title":"12\"x24\"x4\" (Case of 3)","offer_id":44119157080186,"sku":"102-793-023","price":704.85,"currency_code":"USD","in_stock":true},{"title":"16\"x20\"x4\" (Case of 3)","offer_id":44119157112954,"sku":"102-793-025","price":659.25,"currency_code":"USD","in_stock":true},{"title":"16\"x25\"x4\" (Case of 3)","offer_id":44119157145722,"sku":"102-793-026","price":849.96,"currency_code":"USD","in_stock":true},{"title":"18\"x24\"x4\" (Case of 3)","offer_id":44119157178490,"sku":"102-793-027","price":932.88,"currency_code":"USD","in_stock":true},{"title":"20\"x20\"x4\" (Case of 3)","offer_id":44119157211258,"sku":"102-793-028","price":912.15,"currency_code":"USD","in_stock":true},{"title":"20\"x24\"x4\" (Case of 3)","offer_id":44119157244026,"sku":"102-793-029","price":953.61,"currency_code":"USD","in_stock":true},{"title":"20\"x25\"x4\" (Case of 3)","offer_id":44119157276794,"sku":"102-793-030","price":995.07,"currency_code":"USD","in_stock":true},{"title":"24\"x24\"x4\" (Case of 3)","offer_id":44119157309562,"sku":"102-793-031","price":1077.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/getimage2_c65746bc-d155-4a13-9951-5b754d16ca6d.jpg?v=1777859377"},{"product_id":"koch-durapure-standard-capacity-v-cell-carbon-filter","title":"Koch DuraPure Standard Capacity (Extended Surface V-Cell Activated Carbon Filter)","description":"\u003cp\u003ePer Koch DuraPure Bulletin K-397-B, the Koch \u003cstrong\u003eDuraPure Standard Capacity\u003c\/strong\u003e is an \u003cstrong\u003eextended-surface V-cell activated carbon filter\u003c\/strong\u003e for high-volume gas-phase adsorption in commercial and industrial HVAC systems. The DuraPure uses \u003cstrong\u003epremium grade granular 60% activated coconut shell carbon\u003c\/strong\u003e in a unique V-shaped frame — the Standard Capacity configuration delivers \u003cstrong\u003e5 lbs of solvent capacity\u003c\/strong\u003e per filter at \u003cstrong\u003e0.34″ w.g. initial pressure drop\u003c\/strong\u003e.\u003c\/p\u003e\u003ch3\u003eWhat you get: V-cell activated carbon filters, sold by the case\u003c\/h3\u003e\u003cp\u003eEach variant is a complete DuraPure Standard Capacity V-cell filter with a plastic and metal frame, individual moisture-resistant honeycomb carbon cells, and thermoplastic hot-melt sealant. All variants are \u003cstrong\u003e12″ deep\u003c\/strong\u003e; carbon load varies by face dimensions:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e24″x24″x12″\u003c\/strong\u003e — 18 lbs carbon, Single filter per case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x24″x12″\u003c\/strong\u003e — 15 lbs carbon, Single filter per case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x24″x12″\u003c\/strong\u003e — 8 lbs carbon, Case of 2\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDuraPure construction\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm factor:\u003c\/strong\u003e Extended-surface V-cell carbon filter, 12″ deep\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon:\u003c\/strong\u003e Premium grade granular activated carbon, \u003cstrong\u003ecoconut shell\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon Activity Rating:\u003c\/strong\u003e Minimum \u003cstrong\u003e60% on carbon tetrachloride (CCl\u003csub\u003e4\u003c\/sub\u003e) at 25°C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolvent capacity (Standard Capacity):\u003c\/strong\u003e \u003cstrong\u003e5 lbs\u003c\/strong\u003e per filter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitial pressure drop:\u003c\/strong\u003e \u003cstrong\u003e0.34″ w.g.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Plastic and metal frame components — rugged, rigid, easy to install. V-shaped extended-surface design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeader configuration:\u003c\/strong\u003e Single or double header available. Specify when ordering or \u003ca href=\"\/pages\/contact-us\"\u003econtact RTF support\u003c\/a\u003e for header configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon cells:\u003c\/strong\u003e Individual moisture-resistant honeycomb carbon cells deliver high-efficiency contaminant removal with relatively low resistance to airflow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSealant:\u003c\/strong\u003e Thermoplastic hot-melt adhesive secures individual carbon cells within the frame and eliminates air bypass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisposability:\u003c\/strong\u003e Single-use disposable; not washable\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eNominal vs actual dimensions\u003c\/h3\u003e\u003ctable style=\"border-collapse:collapse;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eNominal Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eActual Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eCarbon Weight (Standard Capacity)\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eInitial Pressure Drop\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e24″x24″x12″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e23.38 x 23.38 x 11.50″\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e18 lbs\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.34″ w.g.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e20″x24″x12″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e19.38 x 23.38 x 11.50″\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e15 lbs\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.34″ w.g.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e12″x24″x12″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e11.38 x 23.38 x 11.50″\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e8 lbs\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.34″ w.g.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eContaminants effectively controlled by activated carbon\u003c\/h3\u003e\u003cp\u003ePremium 60% activated carbon effectively adsorbs a broad spectrum of gas-phase contaminants. Categories well-controlled include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolatile organic compounds (VOCs) and solvents:\u003c\/strong\u003e acetone, toluene, xylene, methyl ethyl ketone (MEK), methyl isobutyl ketone (MIBK), ethyl acetate, butyl acetate, mineral spirits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChlorinated compounds:\u003c\/strong\u003e carbon tetrachloride, chloroform, trichloroethylene, tetrachloroethylene, ethylene dichloride, chlorobenzene\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAromatic hydrocarbons:\u003c\/strong\u003e benzene, ethylbenzene, styrene, toluene, xylene, naphtha\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAliphatic hydrocarbons:\u003c\/strong\u003e hexane, heptane, octane, decane, undecane, dodecane, cyclohexane\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlcohols and ketones:\u003c\/strong\u003e butyl alcohol, ethanol, isopropyl alcohol, isoamyl alcohol, cyclohexanone, diethyl ketone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSulfur compounds:\u003c\/strong\u003e carbon disulfide, dimethyl disulfide, ethyl sulfide, butyl mercaptan, thiophenol\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNitrogen-containing:\u003c\/strong\u003e pyridine, dibutylamine, pentylamine, nitrogen dioxide (\u0026lt;100 ppb), nitroethane\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhenols and acids:\u003c\/strong\u003e phenol, cresol, acetic acid, butyric acid, formic acid, propionic acid, valeric acid\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eKoch K-397-B publishes a comprehensive list of approximately 100+ specific compounds; the full list is available in the Koch bulletin linked at the bottom of this page.\u003c\/p\u003e\u003ch3\u003eSpecialized impregnated carbon (custom order)\u003c\/h3\u003e\u003cp\u003eThe DuraPure is also available with \u003cstrong\u003especialized impregnated carbon media\u003c\/strong\u003e for removal of \u003cstrong\u003eammonia, hydrogen sulfide, and other difficult-to-remove compounds\u003c\/strong\u003e that standard activated carbon is less effective against. These specialized configurations are custom-order — \u003ca href=\"\/pages\/quote\"\u003erequest a quote\u003c\/a\u003e with your target contaminant profile and we'll work with Koch to specify the right impregnated media for your application.\u003c\/p\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eDuraPure is specified for high-volume gas-phase adsorption in demanding commercial and industrial environments:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAirports\u003c\/li\u003e\n\u003cli\u003eIndustrial facilities\u003c\/li\u003e\n\u003cli\u003eChemical plants\u003c\/li\u003e\n\u003cli\u003eOffice buildings\u003c\/li\u003e\n\u003cli\u003eAnd other commercial air filtration systems where activated carbon gas-phase adsorption is required at scale\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKoch Green Product status (per Koch K-397-B)\u003c\/h3\u003e\u003cp\u003eKoch designates the DuraPure as a \u003cem\u003e\"Koch Green Product\"\u003c\/em\u003e per Bulletin K-397-B. Koch states this designation reflects the product meeting or exceeding their criteria in one or more of the following categories: earning LEED Points, reducing energy costs, extending filter lifecycles, conserving resources, and improving Indoor Environmental Quality.\u003c\/p\u003e\u003cp\u003eThis claim is Koch's own product designation per their published bulletin. For LEED point eligibility specific to your project, consult the current LEED rating system criteria and Koch Filter Corporation for confirmation that DuraPure qualifies for the credits you're targeting.\u003c\/p\u003e\u003ch3\u003eStandard Capacity vs High Capacity — choosing your DuraPure\u003c\/h3\u003e\u003cp\u003eKoch produces DuraPure in two capacity tiers. The choice comes down to how much carbon you need vs how much pressure drop your HVAC system can handle:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuraPure Standard Capacity (this product):\u003c\/strong\u003e \u003cstrong\u003e5 lbs solvent capacity\u003c\/strong\u003e, 0.34″ w.g. initial pressure drop. 18 lbs of carbon in the 24x24x12 size. \u003cstrong\u003eUse when pressure-drop budget is tight\u003c\/strong\u003e or when contaminant loads are moderate. The lower pressure drop is the key advantage — less fan energy required.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/koch-durapure-high-capacity-v-cell-carbon-filter\"\u003eDuraPure High Capacity\u003c\/a\u003e:\u003c\/strong\u003e 8 lbs solvent capacity, 0.74″ w.g. initial pressure drop. 26 lbs of carbon in the 24x24x12 size. Use when service life and gas removal capacity are the priority and your HVAC fan can handle the higher pressure drop.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor lower-depth gas-phase filtration in 1″\/2″\/4″ pleated panel form factors, see the Koch \u003ca href=\"\/products\/koch-odorkleen-es-merv-8-carbon-particulate-filter\"\u003eOdorKleen ES\u003c\/a\u003e, \u003ca href=\"\/products\/koch-odorkleen-250-carbonweb-merv-8-carbon-particulate-filter\"\u003eOdorKleen 250\u003c\/a\u003e, \u003ca href=\"\/products\/koch-odorkleen-200-m13-merv-13-carbon-particulate-filter\"\u003eOdorKleen 200\/M13\u003c\/a\u003e, and \u003ca href=\"\/products\/koch-odorkleen-600-carbonweb-merv-10-carbon-particulate-filter\"\u003eOdorKleen 600\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eSizing and ordering notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSizes are nominal.\u003c\/strong\u003e Per Koch K-397-B, actual dimensions are slightly less: 24x24x12 nominal = 23.38″ x 23.38″ x 11.50″ actual; same 1\/2″ pattern in width and 1\/2″ in depth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″ deep filters require deep filter racks.\u003c\/strong\u003e These are commercial\/industrial-scale filters — verify your filter housing accommodates 12″ depth before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle or double header available\u003c\/strong\u003e — specify when ordering. Header configuration affects how the filter mounts in the housing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEach variant ships in the case quantity shown.\u003c\/strong\u003e 24x24x12 and 20x24x12 ship as individual units; 12x24x12 ships 2 per case.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement schedule:\u003c\/strong\u003e Drive by pressure drop curve and odor breakthrough. With the recommended 1.0″ w.g. final pressure drop and the published initial pressure drop, you can estimate service life from your typical airflow and contaminant load. For specialty impregnated carbon configurations targeting ammonia, H\u003csub\u003e2\u003c\/sub\u003eS, or other difficult contaminants, monitor for odor breakthrough rather than pressure drop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon disposal:\u003c\/strong\u003e Spent carbon may have specific disposal requirements depending on captured contaminants and quantities. For chemical plant or industrial applications, follow your local hazardous waste regulations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKoch product literature\u003c\/h3\u003e\u003cp\u003eDetailed product specifications, the complete contaminant list, capacity tables, and full performance data for Koch DuraPure are published in \u003cstrong\u003eKoch Bulletin K-397-B\u003c\/strong\u003e: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/DuraPURE_2022.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDuraPure Product Specification PDF\u003c\/a\u003e (Koch Filter Corporation). For specialized impregnated media variants or LEED-specific qualifications, consult Koch Filter Corporation (\u003ca href=\"https:\/\/www.kochfilter.com\/\" target=\"_blank\" rel=\"noopener\"\u003ekochfilter.com\u003c\/a\u003e) or \u003ca href=\"\/pages\/contact-us\"\u003econtact RTF support\u003c\/a\u003e.\u003c\/p\u003e","brand":"Koch","offers":[{"title":"24\"x24\"x12\" (Case of 1)","offer_id":44119157768314,"sku":"111-800-101","price":878.33,"currency_code":"USD","in_stock":true},{"title":"20\"x24\"x12\" (Case of 1)","offer_id":44119157801082,"sku":"111-800-103","price":715.91,"currency_code":"USD","in_stock":true},{"title":"12\"x24\"x12\" (Case of 2)","offer_id":44119157833850,"sku":"111-800-102","price":1190.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/getimage2_3252f77a-2abe-46ed-85c4-a032450a6794.jpg?v=1777863236"},{"product_id":"koch-durapure-high-capacity-v-cell-carbon-filter","title":"Koch DuraPure High Capacity (Extended Surface V-Cell Activated Carbon Filter)","description":"\u003cp\u003ePer Koch DuraPure Bulletin K-397-B, the Koch \u003cstrong\u003eDuraPure High Capacity\u003c\/strong\u003e is an \u003cstrong\u003eextended-surface V-cell activated carbon filter\u003c\/strong\u003e for high-volume gas-phase adsorption in commercial and industrial HVAC systems. The DuraPure uses \u003cstrong\u003epremium grade granular 60% activated coconut shell carbon\u003c\/strong\u003e in a unique V-shaped frame — the High Capacity configuration delivers \u003cstrong\u003e8 lbs of solvent capacity\u003c\/strong\u003e per filter at \u003cstrong\u003e0.74″ w.g. initial pressure drop\u003c\/strong\u003e.\u003c\/p\u003e\u003ch3\u003eWhat you get: V-cell activated carbon filters, sold by the case\u003c\/h3\u003e\u003cp\u003eEach variant is a complete DuraPure High Capacity V-cell filter with a plastic and metal frame, individual moisture-resistant honeycomb carbon cells, and thermoplastic hot-melt sealant. All variants are \u003cstrong\u003e12″ deep\u003c\/strong\u003e; carbon load varies by face dimensions:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e24″x24″x12″\u003c\/strong\u003e — 26 lbs carbon, Single filter per case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x24″x12″\u003c\/strong\u003e — 21 lbs carbon, Single filter per case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x24″x12″\u003c\/strong\u003e — 12 lbs carbon, Case of 2\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDuraPure construction\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm factor:\u003c\/strong\u003e Extended-surface V-cell carbon filter, 12″ deep\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon:\u003c\/strong\u003e Premium grade granular activated carbon, \u003cstrong\u003ecoconut shell\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon Activity Rating:\u003c\/strong\u003e Minimum \u003cstrong\u003e60% on carbon tetrachloride (CCl\u003csub\u003e4\u003c\/sub\u003e) at 25°C\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSolvent capacity (High Capacity):\u003c\/strong\u003e \u003cstrong\u003e8 lbs\u003c\/strong\u003e per filter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitial pressure drop:\u003c\/strong\u003e \u003cstrong\u003e0.74″ w.g.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Plastic and metal frame components — rugged, rigid, easy to install. V-shaped extended-surface design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeader configuration:\u003c\/strong\u003e Single or double header available. Specify when ordering or \u003ca href=\"\/pages\/contact-us\"\u003econtact RTF support\u003c\/a\u003e for header configuration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon cells:\u003c\/strong\u003e Individual moisture-resistant honeycomb carbon cells deliver high-efficiency contaminant removal with relatively low resistance to airflow\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSealant:\u003c\/strong\u003e Thermoplastic hot-melt adhesive secures individual carbon cells within the frame and eliminates air bypass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisposability:\u003c\/strong\u003e Single-use disposable; not washable\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eNominal vs actual dimensions\u003c\/h3\u003e\u003ctable style=\"border-collapse:collapse;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eNominal Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eActual Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eCarbon Weight (High Capacity)\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eInitial Pressure Drop\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e24″x24″x12″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e23.38 x 23.38 x 11.50″\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e26 lbs\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.74″ w.g.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e20″x24″x12″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e19.38 x 23.38 x 11.50″\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e21 lbs\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.74″ w.g.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e12″x24″x12″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e11.38 x 23.38 x 11.50″\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e12 lbs\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.74″ w.g.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eContaminants effectively controlled by activated carbon\u003c\/h3\u003e\u003cp\u003ePremium 60% activated carbon effectively adsorbs a broad spectrum of gas-phase contaminants. Categories well-controlled include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolatile organic compounds (VOCs) and solvents:\u003c\/strong\u003e acetone, toluene, xylene, methyl ethyl ketone (MEK), methyl isobutyl ketone (MIBK), ethyl acetate, butyl acetate, mineral spirits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChlorinated compounds:\u003c\/strong\u003e carbon tetrachloride, chloroform, trichloroethylene, tetrachloroethylene, ethylene dichloride, chlorobenzene\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAromatic hydrocarbons:\u003c\/strong\u003e benzene, ethylbenzene, styrene, toluene, xylene, naphtha\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAliphatic hydrocarbons:\u003c\/strong\u003e hexane, heptane, octane, decane, undecane, dodecane, cyclohexane\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlcohols and ketones:\u003c\/strong\u003e butyl alcohol, ethanol, isopropyl alcohol, isoamyl alcohol, cyclohexanone, diethyl ketone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSulfur compounds:\u003c\/strong\u003e carbon disulfide, dimethyl disulfide, ethyl sulfide, butyl mercaptan, thiophenol\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNitrogen-containing:\u003c\/strong\u003e pyridine, dibutylamine, pentylamine, nitrogen dioxide (\u0026lt;100 ppb), nitroethane\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhenols and acids:\u003c\/strong\u003e phenol, cresol, acetic acid, butyric acid, formic acid, propionic acid, valeric acid\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eKoch K-397-B publishes a comprehensive list of approximately 100+ specific compounds; the full list is available in the Koch bulletin linked at the bottom of this page.\u003c\/p\u003e\u003ch3\u003eSpecialized impregnated carbon (custom order)\u003c\/h3\u003e\u003cp\u003eThe DuraPure is also available with \u003cstrong\u003especialized impregnated carbon media\u003c\/strong\u003e for removal of \u003cstrong\u003eammonia, hydrogen sulfide, and other difficult-to-remove compounds\u003c\/strong\u003e that standard activated carbon is less effective against. These specialized configurations are custom-order — \u003ca href=\"\/pages\/quote\"\u003erequest a quote\u003c\/a\u003e with your target contaminant profile and we'll work with Koch to specify the right impregnated media for your application.\u003c\/p\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eDuraPure is specified for high-volume gas-phase adsorption in demanding commercial and industrial environments:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAirports\u003c\/li\u003e\n\u003cli\u003eIndustrial facilities\u003c\/li\u003e\n\u003cli\u003eChemical plants\u003c\/li\u003e\n\u003cli\u003eOffice buildings\u003c\/li\u003e\n\u003cli\u003eAnd other commercial air filtration systems where activated carbon gas-phase adsorption is required at scale\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKoch Green Product status (per Koch K-397-B)\u003c\/h3\u003e\u003cp\u003eKoch designates the DuraPure as a \u003cem\u003e\"Koch Green Product\"\u003c\/em\u003e per Bulletin K-397-B. Koch states this designation reflects the product meeting or exceeding their criteria in one or more of the following categories: earning LEED Points, reducing energy costs, extending filter lifecycles, conserving resources, and improving Indoor Environmental Quality.\u003c\/p\u003e\u003cp\u003eThis claim is Koch's own product designation per their published bulletin. For LEED point eligibility specific to your project, consult the current LEED rating system criteria and Koch Filter Corporation for confirmation that DuraPure qualifies for the credits you're targeting.\u003c\/p\u003e\u003ch3\u003eStandard Capacity vs High Capacity — choosing your DuraPure\u003c\/h3\u003e\u003cp\u003eKoch produces DuraPure in two capacity tiers. The choice comes down to how much carbon you need vs how much pressure drop your HVAC system can handle:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuraPure High Capacity (this product):\u003c\/strong\u003e \u003cstrong\u003e8 lbs solvent capacity\u003c\/strong\u003e, 0.74″ w.g. initial pressure drop. 26 lbs of carbon in the 24x24x12 size. \u003cstrong\u003eUse when service life and gas removal capacity are the priority\u003c\/strong\u003e, and your HVAC fan can handle the higher pressure drop. Trades airflow for adsorption capacity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/koch-durapure-standard-capacity-v-cell-carbon-filter\"\u003eDuraPure Standard Capacity\u003c\/a\u003e:\u003c\/strong\u003e 5 lbs solvent capacity, 0.34″ w.g. initial pressure drop. 18 lbs of carbon in the 24x24x12 size. Use when pressure-drop budget is tight or when lighter contaminant loads don't require the High Capacity's additional carbon.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor lower-depth gas-phase filtration in 1″\/2″\/4″ pleated panel form factors, see the Koch \u003ca href=\"\/products\/koch-odorkleen-es-merv-8-carbon-particulate-filter\"\u003eOdorKleen ES\u003c\/a\u003e, \u003ca href=\"\/products\/koch-odorkleen-250-carbonweb-merv-8-carbon-particulate-filter\"\u003eOdorKleen 250\u003c\/a\u003e, \u003ca href=\"\/products\/koch-odorkleen-200-m13-merv-13-carbon-particulate-filter\"\u003eOdorKleen 200\/M13\u003c\/a\u003e, and \u003ca href=\"\/products\/koch-odorkleen-600-carbonweb-merv-10-carbon-particulate-filter\"\u003eOdorKleen 600\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eSizing and ordering notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSizes are nominal.\u003c\/strong\u003e Per Koch K-397-B, actual dimensions are slightly less: 24x24x12 nominal = 23.38″ x 23.38″ x 11.50″ actual; same 1\/2″ pattern in width and 1\/2″ in depth.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″ deep filters require deep filter racks.\u003c\/strong\u003e These are commercial\/industrial-scale filters — verify your filter housing accommodates 12″ depth before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle or double header available\u003c\/strong\u003e — specify when ordering. Header configuration affects how the filter mounts in the housing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEach variant ships in the case quantity shown.\u003c\/strong\u003e 24x24x12 and 20x24x12 ship as individual units; 12x24x12 ships 2 per case.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement schedule:\u003c\/strong\u003e Drive by pressure drop curve and odor breakthrough. With the recommended 1.0″ w.g. final pressure drop and the published initial pressure drop, you can estimate service life from your typical airflow and contaminant load. For specialty impregnated carbon configurations targeting ammonia, H\u003csub\u003e2\u003c\/sub\u003eS, or other difficult contaminants, monitor for odor breakthrough rather than pressure drop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon disposal:\u003c\/strong\u003e Spent carbon may have specific disposal requirements depending on captured contaminants and quantities. For chemical plant or industrial applications, follow your local hazardous waste regulations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKoch product literature\u003c\/h3\u003e\u003cp\u003eDetailed product specifications, the complete contaminant list, capacity tables, and full performance data for Koch DuraPure are published in \u003cstrong\u003eKoch Bulletin K-397-B\u003c\/strong\u003e: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/DuraPURE_2022.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDuraPure Product Specification PDF\u003c\/a\u003e (Koch Filter Corporation). For specialized impregnated media variants or LEED-specific qualifications, consult Koch Filter Corporation (\u003ca href=\"https:\/\/www.kochfilter.com\/\" target=\"_blank\" rel=\"noopener\"\u003ekochfilter.com\u003c\/a\u003e) or \u003ca href=\"\/pages\/contact-us\"\u003econtact RTF support\u003c\/a\u003e.\u003c\/p\u003e","brand":"Koch","offers":[{"title":"24\"x24\"x12\" (Case of 1)","offer_id":44119157866618,"sku":"111-801-101","price":941.2,"currency_code":"USD","in_stock":true},{"title":"20\"x24\"x12\" (Case of 1)","offer_id":44119157899386,"sku":"111-801-103","price":840.81,"currency_code":"USD","in_stock":true},{"title":"12\"x24\"x12\" (Case of 2)","offer_id":44119157932154,"sku":"111-801-102","price":1279.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/getimage2_7c078e78-3715-474b-bef8-91aa13dc8bf2.jpg?v=1777863242"},{"product_id":"koch-durakleen-single-header-merv-8-cps-carbon-filter","title":"Koch DuraKleen Single Header MERV 8 (CPS Carbon V-Cell Gas-Phase Filter)","description":"\u003cp\u003ePer Koch Bulletin \u003cstrong\u003ePB-1202\u003c\/strong\u003e, the Koch \u003cstrong\u003eDuraKleen Single Header MERV 8\u003c\/strong\u003e is a \u003cstrong\u003ehigh-efficiency gas-phase V-cell carbon filter\u003c\/strong\u003e engineered for environments with \u003cstrong\u003eairborne molecular contamination (AMC)\u003c\/strong\u003e at sub-ppm levels. The DuraKleen uses Koch's patented \u003cstrong\u003eCelbond Particulate Structure (CPS) technology\u003c\/strong\u003e, suspending \u003cstrong\u003e500 gsm of 20x50 mesh activated carbon\u003c\/strong\u003e in a tightly bonded three-dimensional network of bicomponent fibers. This Single Header configuration is rated \u003cstrong\u003eMERV 8\u003c\/strong\u003e and is sized to fit single header housing configurations.\u003c\/p\u003e\u003ch3\u003eWhat you get: V-cell gas-phase carbon filters, sold by the case\u003c\/h3\u003e\u003cp\u003eEach variant is a complete DuraKleen Single Header MERV 8 V-cell filter with the CPS-technology carbon media. All variants are \u003cstrong\u003e12″ deep\u003c\/strong\u003e; pricing varies by face dimensions:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e24″x24″x12″\u003c\/strong\u003e — 6 lbs carbon, Single filter per case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x25″x12″\u003c\/strong\u003e — \u003cem\u003eadditional size\u003c\/em\u003e — 5 lbs carbon, Single filter per case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x24″x12″\u003c\/strong\u003e — 6 lbs carbon, Single filter per case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x20″x12″\u003c\/strong\u003e — \u003cem\u003eadditional size\u003c\/em\u003e — 3.7 lbs carbon, Single filter per case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x24″x12″\u003c\/strong\u003e — 3 lbs carbon, Case of 2\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eSizes marked \"additional size\" are stocked by RTF beyond Koch's PB-1202 standard published sizes (24x24x12, 20x24x12, 12x24x12). The 20x20x12 and 20x25x12 dimensions use the same CPS construction at proportional carbon load.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eCelbond Particulate Structure (CPS) technology\u003c\/h3\u003e\u003cp\u003eCPS technology is the key differentiator that distinguishes DuraKleen from standard honeycomb carbon filters:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon distribution:\u003c\/strong\u003e Activated carbon is suspended in uniform distribution throughout a tightly bonded three-dimensional network of bicomponent fibers — no honeycomb cells or loose granular carbon.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon mesh size:\u003c\/strong\u003e \u003cstrong\u003e20x50 mesh\u003c\/strong\u003e — small mesh = high efficiency. Smaller carbon particles expose more surface area to the airstream per unit volume.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon load:\u003c\/strong\u003e 500 gsm. The combination of small mesh and high gsm gives DuraKleen an outstanding balance of first-pass removal efficiency, filter life, and low pressure drop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBonding efficiency:\u003c\/strong\u003e The fiber-to-carbon bond obstructs only approximately 1% of the carbon's surface area, leaving roughly 99% available for gas adsorption.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTortuous airflow path:\u003c\/strong\u003e Gas contaminants pass through tortuous pathways inside the CPS media, ensuring intimate contact between contaminant molecules and the carbon adsorption surface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates post-filtration:\u003c\/strong\u003e The fiber-to-carbon bond eliminates the need for post-filtration in most applications — the carbon stays where it's placed and doesn't shed downstream.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDuraKleen Single Header MERV 8 construction\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm factor:\u003c\/strong\u003e Extended-surface V-cell carbon filter, 12″ deep\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia technology:\u003c\/strong\u003e Celbond Particulate Structure (CPS) — activated carbon suspended in 3D bicomponent fiber network\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon:\u003c\/strong\u003e 500 gsm of 20x50 mesh activated carbon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitial resistance:\u003c\/strong\u003e \u003cstrong\u003e0.24″ w.g.\u003c\/strong\u003e @ 500 FPM — substantially lower than DuraPure honeycomb-cell filters at the same face velocity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeader configuration:\u003c\/strong\u003e Single Header — mounting flange configuration: single header\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMERV rating:\u003c\/strong\u003e MERV 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable depths:\u003c\/strong\u003e 12″ only (deep V-cell architecture)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolishing filter:\u003c\/strong\u003e Koch positions DuraKleen as an \u003cem\u003e\"excellent polishing filter for high contaminant concentrations.\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisposability:\u003c\/strong\u003e Single-use disposable; not washable\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKoch published dimensions and media area (PB-1202)\u003c\/h3\u003e\u003ctable style=\"border-collapse:collapse;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eNominal Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eActual Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eInitial Resistance @ 500 FPM\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eMedia Area\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e24″x24″x12″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e23.38 x 23.38 x 11.50″\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.24″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e55 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e20″x24″x12″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e19.38 x 23.38 x 11.50″\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.24″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e44 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e12″x24″x12″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e11.38 x 23.38 x 11.50″\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.24″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e24 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eThe table above documents Koch's standard published sizes per PB-1202. RTF also stocks 20″x20″x12″ and 20″x25″x12″ in the same DuraKleen CPS construction; carbon load and media area scale proportionally with face dimensions.\u003c\/p\u003e\u003ch3\u003eAirborne molecular contamination (AMC) and polishing filtration\u003c\/h3\u003e\u003cp\u003eDuraKleen is engineered for environments where gas-phase contaminants need to be reduced to \u003cstrong\u003esub-ppm levels\u003c\/strong\u003e — concentrations where standard carbon filtration starts to lose effectiveness. Typical AMC applications include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCleanrooms and semiconductor manufacturing:\u003c\/strong\u003e trace amines, acids, and organics that interfere with photolithography and surface chemistry\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMuseum and archive preservation:\u003c\/strong\u003e trace acids and oxidants that degrade paper, photographs, textiles, and artwork over time\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePharmaceutical manufacturing:\u003c\/strong\u003e trace contaminants that affect product purity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHospital sensitive areas:\u003c\/strong\u003e sub-ppm gas-phase contaminants in operating theaters, isolation rooms, and laboratory spaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolishing filtration:\u003c\/strong\u003e Used downstream of higher-capacity filters (such as DuraPure) to reduce residual contaminant concentrations to levels that primary filters can't reach efficiently\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eDuraKleen is also \u003cstrong\u003eavailable in other media options for the removal of specific types of amines and acid gases\u003c\/strong\u003e — \u003ca href=\"\/pages\/quote\"\u003erequest a quote\u003c\/a\u003e with your target contaminant profile.\u003c\/p\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eDuraKleen is specified for:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eChemical Storage Rooms\u003c\/li\u003e\n\u003cli\u003eHospitals\u003c\/li\u003e\n\u003cli\u003eSports Arenas\u003c\/li\u003e\n\u003cli\u003eLaboratories\u003c\/li\u003e\n\u003cli\u003eAirports\u003c\/li\u003e\n\u003cli\u003eCasinos\u003c\/li\u003e\n\u003cli\u003eMuseums and Archives\u003c\/li\u003e\n\u003cli\u003eIndustrial Facilities\u003c\/li\u003e\n\u003cli\u003ePharmaceutical\u003c\/li\u003e\n\u003cli\u003eCommercial Buildings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eChoosing your DuraKleen configuration\u003c\/h3\u003e\u003cp\u003eDuraKleen ships in five configurations for housing compatibility and integrated particulate filtration capacity. The choice depends on your existing filter housing and what level of integrated particulate capture you need alongside the gas-phase performance:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/products\/koch-durakleen-single-header-merv-15-cps-carbon-filter\"\u003eDuraKleen Single Header MERV 15\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/products\/koch-durakleen-no-header-box-style-merv-8-cps-carbon-filter\"\u003eDuraKleen No Header Box Style MERV 8\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/products\/koch-durakleen-no-header-box-style-merv-15-cps-carbon-filter\"\u003eDuraKleen No Header Box Style MERV 15\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/products\/koch-durakleen-double-header-merv-8-cps-carbon-filter\"\u003eDuraKleen Double Header MERV 8\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIf you're unsure which configuration fits your existing filter housing, \u003ca href=\"\/pages\/contact-us\"\u003econtact RTF support\u003c\/a\u003e with your housing make\/model and we'll help you specify the right header configuration. The MERV rating reflects the integrated particulate filtration capacity of the configuration; all configurations share the same Koch CPS gas-phase carbon performance.\u003c\/p\u003e\u003ch3\u003eDuraKleen vs DuraPure — choosing your gas-phase platform\u003c\/h3\u003e\u003cp\u003eKoch produces two extended-surface 12″-deep carbon filter platforms. They serve different gas-phase use cases:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuraKleen (this product family):\u003c\/strong\u003e CPS bicomponent fiber media with 500 gsm 20x50 mesh carbon. Initial resistance \u003cstrong\u003e0.24″ w.g. @ 500 FPM\u003c\/strong\u003e. Engineered for \u003cstrong\u003esub-ppm AMC removal\u003c\/strong\u003e and polishing filtration. Koch's breakthrough analysis shows DuraKleen outperforming honeycomb carbon designs at low concentration levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/koch-durapure-standard-capacity-v-cell-carbon-filter\"\u003eDuraPure Standard Capacity\u003c\/a\u003e\u003c\/strong\u003e and \u003cstrong\u003e\u003ca href=\"\/products\/koch-durapure-high-capacity-v-cell-carbon-filter\"\u003eDuraPure High Capacity\u003c\/a\u003e:\u003c\/strong\u003e Honeycomb carbon cells with premium coconut shell granular carbon. 18–26 lbs carbon load per filter, 0.34–0.74″ w.g. initial resistance. Engineered for \u003cstrong\u003ehigh-volume gas-phase capacity\u003c\/strong\u003e at moderate contaminant concentrations — specified for airports, industrial facilities, chemical plants, office buildings.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor lower-depth gas-phase filtration in 1″\/2″\/4″ pleated panel form factors, see the Koch \u003ca href=\"\/products\/koch-odorkleen-es-merv-8-carbon-particulate-filter\"\u003eOdorKleen ES\u003c\/a\u003e, \u003ca href=\"\/products\/koch-odorkleen-250-carbonweb-merv-8-carbon-particulate-filter\"\u003eOdorKleen 250\u003c\/a\u003e, \u003ca href=\"\/products\/koch-odorkleen-200-m13-merv-13-carbon-particulate-filter\"\u003eOdorKleen 200\/M13\u003c\/a\u003e, and \u003ca href=\"\/products\/koch-odorkleen-600-carbonweb-merv-10-carbon-particulate-filter\"\u003eOdorKleen 600\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eSizing and ordering notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSizes are nominal.\u003c\/strong\u003e Per Koch PB-1202, actual dimensions are slightly less: 24x24x12 nominal = 23.38″ x 23.38″ x 11.50″ actual; same 1\/2″-1″ pattern across sizes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″ deep filters require deep filter racks.\u003c\/strong\u003e Verify your filter housing accommodates 12″ depth before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeader configuration is housing-specific.\u003c\/strong\u003e This product is the Single Header configuration. If your housing requires a different header type, see the \u003cstrong\u003eChoosing your DuraKleen configuration\u003c\/strong\u003e section above for cross-links to the other configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\"Call for Quote\" sizes:\u003c\/strong\u003e Some configuration\/size combinations are special-order only. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e for these or for facility-scale orders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialty media:\u003c\/strong\u003e DuraKleen is also available with specialized media for amines and acid gases. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e with your target contaminant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement schedule:\u003c\/strong\u003e Drive by pressure drop curve and breakthrough monitoring. For sub-ppm AMC applications, monitor downstream concentration directly — pressure drop alone may not signal breakthrough at trace contaminant levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon disposal:\u003c\/strong\u003e Spent CPS media may have specific disposal requirements depending on captured contaminants. Follow your local hazardous waste regulations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKoch product literature\u003c\/h3\u003e\u003cp\u003eDetailed product specifications, Dynamic Breakthrough Analysis, and complete performance data for Koch DuraKleen are published in \u003cstrong\u003eKoch Bulletin PB-1202\u003c\/strong\u003e: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/DuraKleen.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDuraKleen Product Specification PDF\u003c\/a\u003e (Koch Filter Corporation). For specialty media variants targeting amines or acid gases, consult Koch Filter Corporation (\u003ca href=\"https:\/\/www.kochfilter.com\/\" target=\"_blank\" rel=\"noopener\"\u003ekochfilter.com\u003c\/a\u003e) or \u003ca href=\"\/pages\/contact-us\"\u003econtact RTF support\u003c\/a\u003e.\u003c\/p\u003e","brand":"Koch","offers":[{"title":"24\"x24\"x12\" (Case of 1)","offer_id":44119158161530,"sku":"112-685-001","price":691.91,"currency_code":"USD","in_stock":true},{"title":"20\"x25\"x12\" (Case of 1)","offer_id":44119158194298,"sku":"112-685-015","price":622.1,"currency_code":"USD","in_stock":true},{"title":"20\"x24\"x12\" (Case of 1)","offer_id":44119158227066,"sku":"112-685-006","price":619.54,"currency_code":"USD","in_stock":true},{"title":"20\"x20\"x12\" (Case of 1)","offer_id":44119158259834,"sku":"112-685-005","price":488.54,"currency_code":"USD","in_stock":true},{"title":"12\"x24\"x12\" (Case of 2)","offer_id":44119158292602,"sku":"112-685-002","price":860.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/getimage2_1eceb39b-845e-4290-866a-dbb2195b1cbc.png?v=1777864360"},{"product_id":"koch-durakleen-single-header-merv-15-cps-carbon-filter","title":"Koch DuraKleen Single Header MERV 15 (CPS Carbon V-Cell Gas-Phase Filter)","description":"\u003cp\u003ePer Koch Bulletin \u003cstrong\u003ePB-1202\u003c\/strong\u003e, the Koch \u003cstrong\u003eDuraKleen Single Header MERV 15\u003c\/strong\u003e is a \u003cstrong\u003ehigh-efficiency gas-phase V-cell carbon filter\u003c\/strong\u003e engineered for environments with \u003cstrong\u003eairborne molecular contamination (AMC)\u003c\/strong\u003e at sub-ppm levels. The DuraKleen uses Koch's patented \u003cstrong\u003eCelbond Particulate Structure (CPS) technology\u003c\/strong\u003e, suspending \u003cstrong\u003e500 gsm of 20x50 mesh activated carbon\u003c\/strong\u003e in a tightly bonded three-dimensional network of bicomponent fibers. This Single Header configuration is rated \u003cstrong\u003eMERV 15\u003c\/strong\u003e and is sized to fit single header housing configurations.\u003c\/p\u003e\u003ch3\u003eWhat you get: V-cell gas-phase carbon filters, sold by the case\u003c\/h3\u003e\u003cp\u003eEach variant is a complete DuraKleen Single Header MERV 15 V-cell filter with the CPS-technology carbon media. All variants are \u003cstrong\u003e12″ deep\u003c\/strong\u003e; pricing varies by face dimensions:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e24″x24″x12″\u003c\/strong\u003e — 6 lbs carbon, Single filter per case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x25″x12″\u003c\/strong\u003e — \u003cem\u003eadditional size\u003c\/em\u003e — 5 lbs carbon, available by quote. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x24″x12″\u003c\/strong\u003e — 6 lbs carbon, Single filter per case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x20″x12″\u003c\/strong\u003e — \u003cem\u003eadditional size\u003c\/em\u003e — 3.7 lbs carbon, Single filter per case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x24″x12″\u003c\/strong\u003e — 3 lbs carbon, Case of 2\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eSizes marked \"additional size\" are stocked by RTF beyond Koch's PB-1202 standard published sizes (24x24x12, 20x24x12, 12x24x12). The 20x20x12 and 20x25x12 dimensions use the same CPS construction at proportional carbon load.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eCelbond Particulate Structure (CPS) technology\u003c\/h3\u003e\u003cp\u003eCPS technology is the key differentiator that distinguishes DuraKleen from standard honeycomb carbon filters:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon distribution:\u003c\/strong\u003e Activated carbon is suspended in uniform distribution throughout a tightly bonded three-dimensional network of bicomponent fibers — no honeycomb cells or loose granular carbon.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon mesh size:\u003c\/strong\u003e \u003cstrong\u003e20x50 mesh\u003c\/strong\u003e — small mesh = high efficiency. Smaller carbon particles expose more surface area to the airstream per unit volume.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon load:\u003c\/strong\u003e 500 gsm. The combination of small mesh and high gsm gives DuraKleen an outstanding balance of first-pass removal efficiency, filter life, and low pressure drop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBonding efficiency:\u003c\/strong\u003e The fiber-to-carbon bond obstructs only approximately 1% of the carbon's surface area, leaving roughly 99% available for gas adsorption.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTortuous airflow path:\u003c\/strong\u003e Gas contaminants pass through tortuous pathways inside the CPS media, ensuring intimate contact between contaminant molecules and the carbon adsorption surface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates post-filtration:\u003c\/strong\u003e The fiber-to-carbon bond eliminates the need for post-filtration in most applications — the carbon stays where it's placed and doesn't shed downstream.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDuraKleen Single Header MERV 15 construction\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm factor:\u003c\/strong\u003e Extended-surface V-cell carbon filter, 12″ deep\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia technology:\u003c\/strong\u003e Celbond Particulate Structure (CPS) — activated carbon suspended in 3D bicomponent fiber network\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon:\u003c\/strong\u003e 500 gsm of 20x50 mesh activated carbon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitial resistance:\u003c\/strong\u003e \u003cstrong\u003e0.24″ w.g.\u003c\/strong\u003e @ 500 FPM — substantially lower than DuraPure honeycomb-cell filters at the same face velocity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeader configuration:\u003c\/strong\u003e Single Header — mounting flange configuration: single header\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMERV rating:\u003c\/strong\u003e MERV 15\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable depths:\u003c\/strong\u003e 12″ only (deep V-cell architecture)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolishing filter:\u003c\/strong\u003e Koch positions DuraKleen as an \u003cem\u003e\"excellent polishing filter for high contaminant concentrations.\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisposability:\u003c\/strong\u003e Single-use disposable; not washable\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKoch published dimensions and media area (PB-1202)\u003c\/h3\u003e\u003ctable style=\"border-collapse:collapse;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eNominal Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eActual Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eInitial Resistance @ 500 FPM\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eMedia Area\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e24″x24″x12″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e23.38 x 23.38 x 11.50″\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.24″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e55 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e20″x24″x12″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e19.38 x 23.38 x 11.50″\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.24″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e44 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e12″x24″x12″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e11.38 x 23.38 x 11.50″\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.24″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e24 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eThe table above documents Koch's standard published sizes per PB-1202. RTF also stocks 20″x20″x12″ and 20″x25″x12″ in the same DuraKleen CPS construction; carbon load and media area scale proportionally with face dimensions.\u003c\/p\u003e\u003ch3\u003eAirborne molecular contamination (AMC) and polishing filtration\u003c\/h3\u003e\u003cp\u003eDuraKleen is engineered for environments where gas-phase contaminants need to be reduced to \u003cstrong\u003esub-ppm levels\u003c\/strong\u003e — concentrations where standard carbon filtration starts to lose effectiveness. Typical AMC applications include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCleanrooms and semiconductor manufacturing:\u003c\/strong\u003e trace amines, acids, and organics that interfere with photolithography and surface chemistry\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMuseum and archive preservation:\u003c\/strong\u003e trace acids and oxidants that degrade paper, photographs, textiles, and artwork over time\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePharmaceutical manufacturing:\u003c\/strong\u003e trace contaminants that affect product purity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHospital sensitive areas:\u003c\/strong\u003e sub-ppm gas-phase contaminants in operating theaters, isolation rooms, and laboratory spaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolishing filtration:\u003c\/strong\u003e Used downstream of higher-capacity filters (such as DuraPure) to reduce residual contaminant concentrations to levels that primary filters can't reach efficiently\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eDuraKleen is also \u003cstrong\u003eavailable in other media options for the removal of specific types of amines and acid gases\u003c\/strong\u003e — \u003ca href=\"\/pages\/quote\"\u003erequest a quote\u003c\/a\u003e with your target contaminant profile.\u003c\/p\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eDuraKleen is specified for:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eChemical Storage Rooms\u003c\/li\u003e\n\u003cli\u003eHospitals\u003c\/li\u003e\n\u003cli\u003eSports Arenas\u003c\/li\u003e\n\u003cli\u003eLaboratories\u003c\/li\u003e\n\u003cli\u003eAirports\u003c\/li\u003e\n\u003cli\u003eCasinos\u003c\/li\u003e\n\u003cli\u003eMuseums and Archives\u003c\/li\u003e\n\u003cli\u003eIndustrial Facilities\u003c\/li\u003e\n\u003cli\u003ePharmaceutical\u003c\/li\u003e\n\u003cli\u003eCommercial Buildings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eChoosing your DuraKleen configuration\u003c\/h3\u003e\u003cp\u003eDuraKleen ships in five configurations for housing compatibility and integrated particulate filtration capacity. The choice depends on your existing filter housing and what level of integrated particulate capture you need alongside the gas-phase performance:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/products\/koch-durakleen-single-header-merv-8-cps-carbon-filter\"\u003eDuraKleen Single Header MERV 8\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/products\/koch-durakleen-no-header-box-style-merv-8-cps-carbon-filter\"\u003eDuraKleen No Header Box Style MERV 8\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/products\/koch-durakleen-no-header-box-style-merv-15-cps-carbon-filter\"\u003eDuraKleen No Header Box Style MERV 15\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/products\/koch-durakleen-double-header-merv-8-cps-carbon-filter\"\u003eDuraKleen Double Header MERV 8\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIf you're unsure which configuration fits your existing filter housing, \u003ca href=\"\/pages\/contact-us\"\u003econtact RTF support\u003c\/a\u003e with your housing make\/model and we'll help you specify the right header configuration. The MERV rating reflects the integrated particulate filtration capacity of the configuration; all configurations share the same Koch CPS gas-phase carbon performance.\u003c\/p\u003e\u003ch3\u003eDuraKleen vs DuraPure — choosing your gas-phase platform\u003c\/h3\u003e\u003cp\u003eKoch produces two extended-surface 12″-deep carbon filter platforms. They serve different gas-phase use cases:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuraKleen (this product family):\u003c\/strong\u003e CPS bicomponent fiber media with 500 gsm 20x50 mesh carbon. Initial resistance \u003cstrong\u003e0.24″ w.g. @ 500 FPM\u003c\/strong\u003e. Engineered for \u003cstrong\u003esub-ppm AMC removal\u003c\/strong\u003e and polishing filtration. Koch's breakthrough analysis shows DuraKleen outperforming honeycomb carbon designs at low concentration levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/koch-durapure-standard-capacity-v-cell-carbon-filter\"\u003eDuraPure Standard Capacity\u003c\/a\u003e\u003c\/strong\u003e and \u003cstrong\u003e\u003ca href=\"\/products\/koch-durapure-high-capacity-v-cell-carbon-filter\"\u003eDuraPure High Capacity\u003c\/a\u003e:\u003c\/strong\u003e Honeycomb carbon cells with premium coconut shell granular carbon. 18–26 lbs carbon load per filter, 0.34–0.74″ w.g. initial resistance. Engineered for \u003cstrong\u003ehigh-volume gas-phase capacity\u003c\/strong\u003e at moderate contaminant concentrations — specified for airports, industrial facilities, chemical plants, office buildings.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor lower-depth gas-phase filtration in 1″\/2″\/4″ pleated panel form factors, see the Koch \u003ca href=\"\/products\/koch-odorkleen-es-merv-8-carbon-particulate-filter\"\u003eOdorKleen ES\u003c\/a\u003e, \u003ca href=\"\/products\/koch-odorkleen-250-carbonweb-merv-8-carbon-particulate-filter\"\u003eOdorKleen 250\u003c\/a\u003e, \u003ca href=\"\/products\/koch-odorkleen-200-m13-merv-13-carbon-particulate-filter\"\u003eOdorKleen 200\/M13\u003c\/a\u003e, and \u003ca href=\"\/products\/koch-odorkleen-600-carbonweb-merv-10-carbon-particulate-filter\"\u003eOdorKleen 600\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eSizing and ordering notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSizes are nominal.\u003c\/strong\u003e Per Koch PB-1202, actual dimensions are slightly less: 24x24x12 nominal = 23.38″ x 23.38″ x 11.50″ actual; same 1\/2″-1″ pattern across sizes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″ deep filters require deep filter racks.\u003c\/strong\u003e Verify your filter housing accommodates 12″ depth before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeader configuration is housing-specific.\u003c\/strong\u003e This product is the Single Header configuration. If your housing requires a different header type, see the \u003cstrong\u003eChoosing your DuraKleen configuration\u003c\/strong\u003e section above for cross-links to the other configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\"Call for Quote\" sizes:\u003c\/strong\u003e Some configuration\/size combinations are special-order only. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e for these or for facility-scale orders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialty media:\u003c\/strong\u003e DuraKleen is also available with specialized media for amines and acid gases. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e with your target contaminant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement schedule:\u003c\/strong\u003e Drive by pressure drop curve and breakthrough monitoring. For sub-ppm AMC applications, monitor downstream concentration directly — pressure drop alone may not signal breakthrough at trace contaminant levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon disposal:\u003c\/strong\u003e Spent CPS media may have specific disposal requirements depending on captured contaminants. Follow your local hazardous waste regulations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKoch product literature\u003c\/h3\u003e\u003cp\u003eDetailed product specifications, Dynamic Breakthrough Analysis, and complete performance data for Koch DuraKleen are published in \u003cstrong\u003eKoch Bulletin PB-1202\u003c\/strong\u003e: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/DuraKleen.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDuraKleen Product Specification PDF\u003c\/a\u003e (Koch Filter Corporation). For specialty media variants targeting amines or acid gases, consult Koch Filter Corporation (\u003ca href=\"https:\/\/www.kochfilter.com\/\" target=\"_blank\" rel=\"noopener\"\u003ekochfilter.com\u003c\/a\u003e) or \u003ca href=\"\/pages\/contact-us\"\u003econtact RTF support\u003c\/a\u003e.\u003c\/p\u003e","brand":"Koch","offers":[{"title":"24\"x24\"x12\" (Case of 1)","offer_id":44119158325370,"sku":"112-689-242412","price":1499.85,"currency_code":"USD","in_stock":true},{"title":"20\"x25\"x12\" (Call for Quote)","offer_id":44119158358138,"sku":"112-689-015","price":0.0,"currency_code":"USD","in_stock":false},{"title":"20\"x24\"x12\" (Case of 1)","offer_id":44119158390906,"sku":"112-689-202412","price":1341.56,"currency_code":"USD","in_stock":true},{"title":"20\"x20\"x12\" (Case of 1)","offer_id":44119158423674,"sku":"112-689-202012","price":1281.23,"currency_code":"USD","in_stock":true},{"title":"12\"x24\"x12\" (Case of 2)","offer_id":44119158456442,"sku":"112-689-122412","price":2268.86,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/getimage2_284c7956-5ed1-4cd2-9b6c-c55c55bd585f.png?v=1777864367"},{"product_id":"koch-durakleen-no-header-box-style-merv-8-cps-carbon-filter","title":"Koch DuraKleen No Header Box Style MERV 8 (CPS Carbon V-Cell Gas-Phase Filter)","description":"\u003cp\u003ePer Koch Bulletin \u003cstrong\u003ePB-1202\u003c\/strong\u003e, the Koch \u003cstrong\u003eDuraKleen No Header Box Style MERV 8\u003c\/strong\u003e is a \u003cstrong\u003ehigh-efficiency gas-phase V-cell carbon filter\u003c\/strong\u003e engineered for environments with \u003cstrong\u003eairborne molecular contamination (AMC)\u003c\/strong\u003e at sub-ppm levels. The DuraKleen uses Koch's patented \u003cstrong\u003eCelbond Particulate Structure (CPS) technology\u003c\/strong\u003e, suspending \u003cstrong\u003e500 gsm of 20x50 mesh activated carbon\u003c\/strong\u003e in a tightly bonded three-dimensional network of bicomponent fibers. This No Header (Box Style) configuration is rated \u003cstrong\u003eMERV 8\u003c\/strong\u003e and is sized to fit sealed box-style filter housings.\u003c\/p\u003e\u003ch3\u003eWhat you get: V-cell gas-phase carbon filters, sold by the case\u003c\/h3\u003e\u003cp\u003eEach variant is a complete DuraKleen No Header Box Style MERV 8 V-cell filter with the CPS-technology carbon media. All variants are \u003cstrong\u003e12″ deep\u003c\/strong\u003e; pricing varies by face dimensions:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e24″x24″x12″\u003c\/strong\u003e — 6 lbs carbon, Single filter per case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x25″x12″\u003c\/strong\u003e — \u003cem\u003eadditional size\u003c\/em\u003e — 5 lbs carbon, available by quote. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x24″x12″\u003c\/strong\u003e — 6 lbs carbon, available by quote. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x20″x12″\u003c\/strong\u003e — \u003cem\u003eadditional size\u003c\/em\u003e — 3.7 lbs carbon, available by quote. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x24″x12″\u003c\/strong\u003e — 3 lbs carbon, Single filter per case\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eSizes marked \"additional size\" are stocked by RTF beyond Koch's PB-1202 standard published sizes (24x24x12, 20x24x12, 12x24x12). The 20x20x12 and 20x25x12 dimensions use the same CPS construction at proportional carbon load.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eCelbond Particulate Structure (CPS) technology\u003c\/h3\u003e\u003cp\u003eCPS technology is the key differentiator that distinguishes DuraKleen from standard honeycomb carbon filters:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon distribution:\u003c\/strong\u003e Activated carbon is suspended in uniform distribution throughout a tightly bonded three-dimensional network of bicomponent fibers — no honeycomb cells or loose granular carbon.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon mesh size:\u003c\/strong\u003e \u003cstrong\u003e20x50 mesh\u003c\/strong\u003e — small mesh = high efficiency. Smaller carbon particles expose more surface area to the airstream per unit volume.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon load:\u003c\/strong\u003e 500 gsm. The combination of small mesh and high gsm gives DuraKleen an outstanding balance of first-pass removal efficiency, filter life, and low pressure drop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBonding efficiency:\u003c\/strong\u003e The fiber-to-carbon bond obstructs only approximately 1% of the carbon's surface area, leaving roughly 99% available for gas adsorption.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTortuous airflow path:\u003c\/strong\u003e Gas contaminants pass through tortuous pathways inside the CPS media, ensuring intimate contact between contaminant molecules and the carbon adsorption surface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates post-filtration:\u003c\/strong\u003e The fiber-to-carbon bond eliminates the need for post-filtration in most applications — the carbon stays where it's placed and doesn't shed downstream.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDuraKleen No Header Box Style MERV 8 construction\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm factor:\u003c\/strong\u003e Extended-surface V-cell carbon filter, 12″ deep\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia technology:\u003c\/strong\u003e Celbond Particulate Structure (CPS) — activated carbon suspended in 3D bicomponent fiber network\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon:\u003c\/strong\u003e 500 gsm of 20x50 mesh activated carbon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitial resistance:\u003c\/strong\u003e \u003cstrong\u003e0.24″ w.g.\u003c\/strong\u003e @ 500 FPM — substantially lower than DuraPure honeycomb-cell filters at the same face velocity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeader configuration:\u003c\/strong\u003e No Header (Box Style) — fits sealed box-style filter housings without flanges\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMERV rating:\u003c\/strong\u003e MERV 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable depths:\u003c\/strong\u003e 12″ only (deep V-cell architecture)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolishing filter:\u003c\/strong\u003e Koch positions DuraKleen as an \u003cem\u003e\"excellent polishing filter for high contaminant concentrations.\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisposability:\u003c\/strong\u003e Single-use disposable; not washable\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKoch published dimensions and media area (PB-1202)\u003c\/h3\u003e\u003ctable style=\"border-collapse:collapse;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eNominal Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eActual Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eInitial Resistance @ 500 FPM\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eMedia Area\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e24″x24″x12″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e23.38 x 23.38 x 11.50″\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.24″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e55 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e20″x24″x12″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e19.38 x 23.38 x 11.50″\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.24″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e44 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e12″x24″x12″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e11.38 x 23.38 x 11.50″\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.24″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e24 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eThe table above documents Koch's standard published sizes per PB-1202. RTF also stocks 20″x20″x12″ and 20″x25″x12″ in the same DuraKleen CPS construction; carbon load and media area scale proportionally with face dimensions.\u003c\/p\u003e\u003ch3\u003eAirborne molecular contamination (AMC) and polishing filtration\u003c\/h3\u003e\u003cp\u003eDuraKleen is engineered for environments where gas-phase contaminants need to be reduced to \u003cstrong\u003esub-ppm levels\u003c\/strong\u003e — concentrations where standard carbon filtration starts to lose effectiveness. Typical AMC applications include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCleanrooms and semiconductor manufacturing:\u003c\/strong\u003e trace amines, acids, and organics that interfere with photolithography and surface chemistry\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMuseum and archive preservation:\u003c\/strong\u003e trace acids and oxidants that degrade paper, photographs, textiles, and artwork over time\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePharmaceutical manufacturing:\u003c\/strong\u003e trace contaminants that affect product purity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHospital sensitive areas:\u003c\/strong\u003e sub-ppm gas-phase contaminants in operating theaters, isolation rooms, and laboratory spaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolishing filtration:\u003c\/strong\u003e Used downstream of higher-capacity filters (such as DuraPure) to reduce residual contaminant concentrations to levels that primary filters can't reach efficiently\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eDuraKleen is also \u003cstrong\u003eavailable in other media options for the removal of specific types of amines and acid gases\u003c\/strong\u003e — \u003ca href=\"\/pages\/quote\"\u003erequest a quote\u003c\/a\u003e with your target contaminant profile.\u003c\/p\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eDuraKleen is specified for:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eChemical Storage Rooms\u003c\/li\u003e\n\u003cli\u003eHospitals\u003c\/li\u003e\n\u003cli\u003eSports Arenas\u003c\/li\u003e\n\u003cli\u003eLaboratories\u003c\/li\u003e\n\u003cli\u003eAirports\u003c\/li\u003e\n\u003cli\u003eCasinos\u003c\/li\u003e\n\u003cli\u003eMuseums and Archives\u003c\/li\u003e\n\u003cli\u003eIndustrial Facilities\u003c\/li\u003e\n\u003cli\u003ePharmaceutical\u003c\/li\u003e\n\u003cli\u003eCommercial Buildings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eChoosing your DuraKleen configuration\u003c\/h3\u003e\u003cp\u003eDuraKleen ships in five configurations for housing compatibility and integrated particulate filtration capacity. The choice depends on your existing filter housing and what level of integrated particulate capture you need alongside the gas-phase performance:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/products\/koch-durakleen-single-header-merv-8-cps-carbon-filter\"\u003eDuraKleen Single Header MERV 8\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/products\/koch-durakleen-single-header-merv-15-cps-carbon-filter\"\u003eDuraKleen Single Header MERV 15\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/products\/koch-durakleen-no-header-box-style-merv-15-cps-carbon-filter\"\u003eDuraKleen No Header Box Style MERV 15\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/products\/koch-durakleen-double-header-merv-8-cps-carbon-filter\"\u003eDuraKleen Double Header MERV 8\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIf you're unsure which configuration fits your existing filter housing, \u003ca href=\"\/pages\/contact-us\"\u003econtact RTF support\u003c\/a\u003e with your housing make\/model and we'll help you specify the right header configuration. The MERV rating reflects the integrated particulate filtration capacity of the configuration; all configurations share the same Koch CPS gas-phase carbon performance.\u003c\/p\u003e\u003ch3\u003eDuraKleen vs DuraPure — choosing your gas-phase platform\u003c\/h3\u003e\u003cp\u003eKoch produces two extended-surface 12″-deep carbon filter platforms. They serve different gas-phase use cases:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuraKleen (this product family):\u003c\/strong\u003e CPS bicomponent fiber media with 500 gsm 20x50 mesh carbon. Initial resistance \u003cstrong\u003e0.24″ w.g. @ 500 FPM\u003c\/strong\u003e. Engineered for \u003cstrong\u003esub-ppm AMC removal\u003c\/strong\u003e and polishing filtration. Koch's breakthrough analysis shows DuraKleen outperforming honeycomb carbon designs at low concentration levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/koch-durapure-standard-capacity-v-cell-carbon-filter\"\u003eDuraPure Standard Capacity\u003c\/a\u003e\u003c\/strong\u003e and \u003cstrong\u003e\u003ca href=\"\/products\/koch-durapure-high-capacity-v-cell-carbon-filter\"\u003eDuraPure High Capacity\u003c\/a\u003e:\u003c\/strong\u003e Honeycomb carbon cells with premium coconut shell granular carbon. 18–26 lbs carbon load per filter, 0.34–0.74″ w.g. initial resistance. Engineered for \u003cstrong\u003ehigh-volume gas-phase capacity\u003c\/strong\u003e at moderate contaminant concentrations — specified for airports, industrial facilities, chemical plants, office buildings.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor lower-depth gas-phase filtration in 1″\/2″\/4″ pleated panel form factors, see the Koch \u003ca href=\"\/products\/koch-odorkleen-es-merv-8-carbon-particulate-filter\"\u003eOdorKleen ES\u003c\/a\u003e, \u003ca href=\"\/products\/koch-odorkleen-250-carbonweb-merv-8-carbon-particulate-filter\"\u003eOdorKleen 250\u003c\/a\u003e, \u003ca href=\"\/products\/koch-odorkleen-200-m13-merv-13-carbon-particulate-filter\"\u003eOdorKleen 200\/M13\u003c\/a\u003e, and \u003ca href=\"\/products\/koch-odorkleen-600-carbonweb-merv-10-carbon-particulate-filter\"\u003eOdorKleen 600\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eSizing and ordering notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSizes are nominal.\u003c\/strong\u003e Per Koch PB-1202, actual dimensions are slightly less: 24x24x12 nominal = 23.38″ x 23.38″ x 11.50″ actual; same 1\/2″-1″ pattern across sizes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″ deep filters require deep filter racks.\u003c\/strong\u003e Verify your filter housing accommodates 12″ depth before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeader configuration is housing-specific.\u003c\/strong\u003e This product is the No Header (Box Style) configuration. If your housing requires a different header type, see the \u003cstrong\u003eChoosing your DuraKleen configuration\u003c\/strong\u003e section above for cross-links to the other configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\"Call for Quote\" sizes:\u003c\/strong\u003e Some configuration\/size combinations are special-order only. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e for these or for facility-scale orders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialty media:\u003c\/strong\u003e DuraKleen is also available with specialized media for amines and acid gases. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e with your target contaminant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement schedule:\u003c\/strong\u003e Drive by pressure drop curve and breakthrough monitoring. For sub-ppm AMC applications, monitor downstream concentration directly — pressure drop alone may not signal breakthrough at trace contaminant levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon disposal:\u003c\/strong\u003e Spent CPS media may have specific disposal requirements depending on captured contaminants. Follow your local hazardous waste regulations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKoch product literature\u003c\/h3\u003e\u003cp\u003eDetailed product specifications, Dynamic Breakthrough Analysis, and complete performance data for Koch DuraKleen are published in \u003cstrong\u003eKoch Bulletin PB-1202\u003c\/strong\u003e: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/DuraKleen.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDuraKleen Product Specification PDF\u003c\/a\u003e (Koch Filter Corporation). For specialty media variants targeting amines or acid gases, consult Koch Filter Corporation (\u003ca href=\"https:\/\/www.kochfilter.com\/\" target=\"_blank\" rel=\"noopener\"\u003ekochfilter.com\u003c\/a\u003e) or \u003ca href=\"\/pages\/contact-us\"\u003econtact RTF support\u003c\/a\u003e.\u003c\/p\u003e","brand":"Koch","offers":[{"title":"24\"x24\"x12\" (Case of 1)","offer_id":44119158489210,"sku":"112-687-001","price":1200.68,"currency_code":"USD","in_stock":true},{"title":"20\"x25\"x12\" (Call for Quote)","offer_id":44119158521978,"sku":"112-687-202512","price":0.0,"currency_code":"USD","in_stock":false},{"title":"20\"x24\"x12\" (Call for Quote)","offer_id":44119158554746,"sku":"112-687-202412","price":0.0,"currency_code":"USD","in_stock":false},{"title":"20\"x20\"x12\" (Call for Quote)","offer_id":44119158587514,"sku":"112-687-202012","price":0.0,"currency_code":"USD","in_stock":false},{"title":"12\"x24\"x12\" (Case of 1)","offer_id":44119158620282,"sku":"112-687-002","price":958.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/getimage2_0fdb56a6-9a1b-448a-8830-b7558dbb7618.png?v=1777864374"},{"product_id":"koch-durakleen-no-header-box-style-merv-15-cps-carbon-filter","title":"Koch DuraKleen No Header Box Style MERV 15 (CPS Carbon V-Cell Gas-Phase Filter)","description":"\u003cp\u003ePer Koch Bulletin \u003cstrong\u003ePB-1202\u003c\/strong\u003e, the Koch \u003cstrong\u003eDuraKleen No Header Box Style MERV 15\u003c\/strong\u003e is a \u003cstrong\u003ehigh-efficiency gas-phase V-cell carbon filter\u003c\/strong\u003e engineered for environments with \u003cstrong\u003eairborne molecular contamination (AMC)\u003c\/strong\u003e at sub-ppm levels. The DuraKleen uses Koch's patented \u003cstrong\u003eCelbond Particulate Structure (CPS) technology\u003c\/strong\u003e, suspending \u003cstrong\u003e500 gsm of 20x50 mesh activated carbon\u003c\/strong\u003e in a tightly bonded three-dimensional network of bicomponent fibers. This No Header (Box Style) configuration is rated \u003cstrong\u003eMERV 15\u003c\/strong\u003e and is sized to fit sealed box-style filter housings.\u003c\/p\u003e\u003ch3\u003eWhat you get: V-cell gas-phase carbon filters, sold by the case\u003c\/h3\u003e\u003cp\u003eEach variant is a complete DuraKleen No Header Box Style MERV 15 V-cell filter with the CPS-technology carbon media. All variants are \u003cstrong\u003e12″ deep\u003c\/strong\u003e; pricing varies by face dimensions:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e24″x24″x12″\u003c\/strong\u003e — 6 lbs carbon, Single filter per case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x25″x12″\u003c\/strong\u003e — \u003cem\u003eadditional size\u003c\/em\u003e — 5 lbs carbon, Single filter per case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x24″x12″\u003c\/strong\u003e — 6 lbs carbon, Single filter per case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x20″x12″\u003c\/strong\u003e — \u003cem\u003eadditional size\u003c\/em\u003e — 3.7 lbs carbon, Single filter per case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x24″x12″\u003c\/strong\u003e — 3 lbs carbon, available by quote. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eSizes marked \"additional size\" are stocked by RTF beyond Koch's PB-1202 standard published sizes (24x24x12, 20x24x12, 12x24x12). The 20x20x12 and 20x25x12 dimensions use the same CPS construction at proportional carbon load.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eCelbond Particulate Structure (CPS) technology\u003c\/h3\u003e\u003cp\u003eCPS technology is the key differentiator that distinguishes DuraKleen from standard honeycomb carbon filters:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon distribution:\u003c\/strong\u003e Activated carbon is suspended in uniform distribution throughout a tightly bonded three-dimensional network of bicomponent fibers — no honeycomb cells or loose granular carbon.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon mesh size:\u003c\/strong\u003e \u003cstrong\u003e20x50 mesh\u003c\/strong\u003e — small mesh = high efficiency. Smaller carbon particles expose more surface area to the airstream per unit volume.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon load:\u003c\/strong\u003e 500 gsm. The combination of small mesh and high gsm gives DuraKleen an outstanding balance of first-pass removal efficiency, filter life, and low pressure drop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBonding efficiency:\u003c\/strong\u003e The fiber-to-carbon bond obstructs only approximately 1% of the carbon's surface area, leaving roughly 99% available for gas adsorption.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTortuous airflow path:\u003c\/strong\u003e Gas contaminants pass through tortuous pathways inside the CPS media, ensuring intimate contact between contaminant molecules and the carbon adsorption surface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates post-filtration:\u003c\/strong\u003e The fiber-to-carbon bond eliminates the need for post-filtration in most applications — the carbon stays where it's placed and doesn't shed downstream.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDuraKleen No Header Box Style MERV 15 construction\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm factor:\u003c\/strong\u003e Extended-surface V-cell carbon filter, 12″ deep\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia technology:\u003c\/strong\u003e Celbond Particulate Structure (CPS) — activated carbon suspended in 3D bicomponent fiber network\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon:\u003c\/strong\u003e 500 gsm of 20x50 mesh activated carbon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitial resistance:\u003c\/strong\u003e \u003cstrong\u003e0.24″ w.g.\u003c\/strong\u003e @ 500 FPM — substantially lower than DuraPure honeycomb-cell filters at the same face velocity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeader configuration:\u003c\/strong\u003e No Header (Box Style) — fits sealed box-style filter housings without flanges\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMERV rating:\u003c\/strong\u003e MERV 15\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable depths:\u003c\/strong\u003e 12″ only (deep V-cell architecture)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolishing filter:\u003c\/strong\u003e Koch positions DuraKleen as an \u003cem\u003e\"excellent polishing filter for high contaminant concentrations.\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisposability:\u003c\/strong\u003e Single-use disposable; not washable\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKoch published dimensions and media area (PB-1202)\u003c\/h3\u003e\u003ctable style=\"border-collapse:collapse;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eNominal Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eActual Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eInitial Resistance @ 500 FPM\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eMedia Area\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e24″x24″x12″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e23.38 x 23.38 x 11.50″\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.24″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e55 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e20″x24″x12″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e19.38 x 23.38 x 11.50″\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.24″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e44 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e12″x24″x12″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e11.38 x 23.38 x 11.50″\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.24″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e24 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eThe table above documents Koch's standard published sizes per PB-1202. RTF also stocks 20″x20″x12″ and 20″x25″x12″ in the same DuraKleen CPS construction; carbon load and media area scale proportionally with face dimensions.\u003c\/p\u003e\u003ch3\u003eAirborne molecular contamination (AMC) and polishing filtration\u003c\/h3\u003e\u003cp\u003eDuraKleen is engineered for environments where gas-phase contaminants need to be reduced to \u003cstrong\u003esub-ppm levels\u003c\/strong\u003e — concentrations where standard carbon filtration starts to lose effectiveness. Typical AMC applications include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCleanrooms and semiconductor manufacturing:\u003c\/strong\u003e trace amines, acids, and organics that interfere with photolithography and surface chemistry\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMuseum and archive preservation:\u003c\/strong\u003e trace acids and oxidants that degrade paper, photographs, textiles, and artwork over time\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePharmaceutical manufacturing:\u003c\/strong\u003e trace contaminants that affect product purity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHospital sensitive areas:\u003c\/strong\u003e sub-ppm gas-phase contaminants in operating theaters, isolation rooms, and laboratory spaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolishing filtration:\u003c\/strong\u003e Used downstream of higher-capacity filters (such as DuraPure) to reduce residual contaminant concentrations to levels that primary filters can't reach efficiently\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eDuraKleen is also \u003cstrong\u003eavailable in other media options for the removal of specific types of amines and acid gases\u003c\/strong\u003e — \u003ca href=\"\/pages\/quote\"\u003erequest a quote\u003c\/a\u003e with your target contaminant profile.\u003c\/p\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eDuraKleen is specified for:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eChemical Storage Rooms\u003c\/li\u003e\n\u003cli\u003eHospitals\u003c\/li\u003e\n\u003cli\u003eSports Arenas\u003c\/li\u003e\n\u003cli\u003eLaboratories\u003c\/li\u003e\n\u003cli\u003eAirports\u003c\/li\u003e\n\u003cli\u003eCasinos\u003c\/li\u003e\n\u003cli\u003eMuseums and Archives\u003c\/li\u003e\n\u003cli\u003eIndustrial Facilities\u003c\/li\u003e\n\u003cli\u003ePharmaceutical\u003c\/li\u003e\n\u003cli\u003eCommercial Buildings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eChoosing your DuraKleen configuration\u003c\/h3\u003e\u003cp\u003eDuraKleen ships in five configurations for housing compatibility and integrated particulate filtration capacity. The choice depends on your existing filter housing and what level of integrated particulate capture you need alongside the gas-phase performance:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/products\/koch-durakleen-single-header-merv-8-cps-carbon-filter\"\u003eDuraKleen Single Header MERV 8\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/products\/koch-durakleen-single-header-merv-15-cps-carbon-filter\"\u003eDuraKleen Single Header MERV 15\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/products\/koch-durakleen-no-header-box-style-merv-8-cps-carbon-filter\"\u003eDuraKleen No Header Box Style MERV 8\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/products\/koch-durakleen-double-header-merv-8-cps-carbon-filter\"\u003eDuraKleen Double Header MERV 8\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIf you're unsure which configuration fits your existing filter housing, \u003ca href=\"\/pages\/contact-us\"\u003econtact RTF support\u003c\/a\u003e with your housing make\/model and we'll help you specify the right header configuration. The MERV rating reflects the integrated particulate filtration capacity of the configuration; all configurations share the same Koch CPS gas-phase carbon performance.\u003c\/p\u003e\u003ch3\u003eDuraKleen vs DuraPure — choosing your gas-phase platform\u003c\/h3\u003e\u003cp\u003eKoch produces two extended-surface 12″-deep carbon filter platforms. They serve different gas-phase use cases:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuraKleen (this product family):\u003c\/strong\u003e CPS bicomponent fiber media with 500 gsm 20x50 mesh carbon. Initial resistance \u003cstrong\u003e0.24″ w.g. @ 500 FPM\u003c\/strong\u003e. Engineered for \u003cstrong\u003esub-ppm AMC removal\u003c\/strong\u003e and polishing filtration. Koch's breakthrough analysis shows DuraKleen outperforming honeycomb carbon designs at low concentration levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/koch-durapure-standard-capacity-v-cell-carbon-filter\"\u003eDuraPure Standard Capacity\u003c\/a\u003e\u003c\/strong\u003e and \u003cstrong\u003e\u003ca href=\"\/products\/koch-durapure-high-capacity-v-cell-carbon-filter\"\u003eDuraPure High Capacity\u003c\/a\u003e:\u003c\/strong\u003e Honeycomb carbon cells with premium coconut shell granular carbon. 18–26 lbs carbon load per filter, 0.34–0.74″ w.g. initial resistance. Engineered for \u003cstrong\u003ehigh-volume gas-phase capacity\u003c\/strong\u003e at moderate contaminant concentrations — specified for airports, industrial facilities, chemical plants, office buildings.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor lower-depth gas-phase filtration in 1″\/2″\/4″ pleated panel form factors, see the Koch \u003ca href=\"\/products\/koch-odorkleen-es-merv-8-carbon-particulate-filter\"\u003eOdorKleen ES\u003c\/a\u003e, \u003ca href=\"\/products\/koch-odorkleen-250-carbonweb-merv-8-carbon-particulate-filter\"\u003eOdorKleen 250\u003c\/a\u003e, \u003ca href=\"\/products\/koch-odorkleen-200-m13-merv-13-carbon-particulate-filter\"\u003eOdorKleen 200\/M13\u003c\/a\u003e, and \u003ca href=\"\/products\/koch-odorkleen-600-carbonweb-merv-10-carbon-particulate-filter\"\u003eOdorKleen 600\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eSizing and ordering notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSizes are nominal.\u003c\/strong\u003e Per Koch PB-1202, actual dimensions are slightly less: 24x24x12 nominal = 23.38″ x 23.38″ x 11.50″ actual; same 1\/2″-1″ pattern across sizes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″ deep filters require deep filter racks.\u003c\/strong\u003e Verify your filter housing accommodates 12″ depth before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeader configuration is housing-specific.\u003c\/strong\u003e This product is the No Header (Box Style) configuration. If your housing requires a different header type, see the \u003cstrong\u003eChoosing your DuraKleen configuration\u003c\/strong\u003e section above for cross-links to the other configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\"Call for Quote\" sizes:\u003c\/strong\u003e Some configuration\/size combinations are special-order only. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e for these or for facility-scale orders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialty media:\u003c\/strong\u003e DuraKleen is also available with specialized media for amines and acid gases. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e with your target contaminant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement schedule:\u003c\/strong\u003e Drive by pressure drop curve and breakthrough monitoring. For sub-ppm AMC applications, monitor downstream concentration directly — pressure drop alone may not signal breakthrough at trace contaminant levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon disposal:\u003c\/strong\u003e Spent CPS media may have specific disposal requirements depending on captured contaminants. Follow your local hazardous waste regulations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKoch product literature\u003c\/h3\u003e\u003cp\u003eDetailed product specifications, Dynamic Breakthrough Analysis, and complete performance data for Koch DuraKleen are published in \u003cstrong\u003eKoch Bulletin PB-1202\u003c\/strong\u003e: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/DuraKleen.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDuraKleen Product Specification PDF\u003c\/a\u003e (Koch Filter Corporation). For specialty media variants targeting amines or acid gases, consult Koch Filter Corporation (\u003ca href=\"https:\/\/www.kochfilter.com\/\" target=\"_blank\" rel=\"noopener\"\u003ekochfilter.com\u003c\/a\u003e) or \u003ca href=\"\/pages\/contact-us\"\u003econtact RTF support\u003c\/a\u003e.\u003c\/p\u003e","brand":"Koch","offers":[{"title":"24\"x24\"x12\" (Case of 1)","offer_id":44119158653050,"sku":"112-684-242412","price":1413.72,"currency_code":"USD","in_stock":true},{"title":"20\"x25\"x12\" (Case of 1)","offer_id":44119158685818,"sku":"112-684-202512","price":1432.28,"currency_code":"USD","in_stock":true},{"title":"20\"x24\"x12\" (Case of 1)","offer_id":44119158718586,"sku":"112-684-202412","price":1357.53,"currency_code":"USD","in_stock":true},{"title":"20\"x20\"x12\" (Case of 1)","offer_id":44119158751354,"sku":"112-684-202012","price":1295.49,"currency_code":"USD","in_stock":true},{"title":"12\"x24\"x12\" (Call for Quote)","offer_id":44119158784122,"sku":"112-684-122412","price":0.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/getimage2_e60ac86e-2cc4-41fb-a5df-166f10538130.png?v=1777864380"},{"product_id":"koch-durakleen-double-header-merv-8-cps-carbon-filter","title":"Koch DuraKleen Double Header MERV 8 (CPS Carbon V-Cell Gas-Phase Filter)","description":"\u003cp\u003ePer Koch Bulletin \u003cstrong\u003ePB-1202\u003c\/strong\u003e, the Koch \u003cstrong\u003eDuraKleen Double Header MERV 8\u003c\/strong\u003e is a \u003cstrong\u003ehigh-efficiency gas-phase V-cell carbon filter\u003c\/strong\u003e engineered for environments with \u003cstrong\u003eairborne molecular contamination (AMC)\u003c\/strong\u003e at sub-ppm levels. The DuraKleen uses Koch's patented \u003cstrong\u003eCelbond Particulate Structure (CPS) technology\u003c\/strong\u003e, suspending \u003cstrong\u003e500 gsm of 20x50 mesh activated carbon\u003c\/strong\u003e in a tightly bonded three-dimensional network of bicomponent fibers. This Double Header configuration is rated \u003cstrong\u003eMERV 8\u003c\/strong\u003e and is sized to fit double header housing configurations.\u003c\/p\u003e\u003ch3\u003eWhat you get: V-cell gas-phase carbon filters, sold by the case\u003c\/h3\u003e\u003cp\u003eEach variant is a complete DuraKleen Double Header MERV 8 V-cell filter with the CPS-technology carbon media. All variants are \u003cstrong\u003e12″ deep\u003c\/strong\u003e; pricing varies by face dimensions:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e24″x24″x12″\u003c\/strong\u003e — 6 lbs carbon, Single filter per case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x25″x12″\u003c\/strong\u003e — \u003cem\u003eadditional size\u003c\/em\u003e — 5 lbs carbon, available by quote. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x24″x12″\u003c\/strong\u003e — 6 lbs carbon, available by quote. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x20″x12″\u003c\/strong\u003e — \u003cem\u003eadditional size\u003c\/em\u003e — 3.7 lbs carbon, Single filter per case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x24″x12″\u003c\/strong\u003e — 3 lbs carbon, Case of 2\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eSizes marked \"additional size\" are stocked by RTF beyond Koch's PB-1202 standard published sizes (24x24x12, 20x24x12, 12x24x12). The 20x20x12 and 20x25x12 dimensions use the same CPS construction at proportional carbon load.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eCelbond Particulate Structure (CPS) technology\u003c\/h3\u003e\u003cp\u003eCPS technology is the key differentiator that distinguishes DuraKleen from standard honeycomb carbon filters:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon distribution:\u003c\/strong\u003e Activated carbon is suspended in uniform distribution throughout a tightly bonded three-dimensional network of bicomponent fibers — no honeycomb cells or loose granular carbon.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon mesh size:\u003c\/strong\u003e \u003cstrong\u003e20x50 mesh\u003c\/strong\u003e — small mesh = high efficiency. Smaller carbon particles expose more surface area to the airstream per unit volume.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon load:\u003c\/strong\u003e 500 gsm. The combination of small mesh and high gsm gives DuraKleen an outstanding balance of first-pass removal efficiency, filter life, and low pressure drop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBonding efficiency:\u003c\/strong\u003e The fiber-to-carbon bond obstructs only approximately 1% of the carbon's surface area, leaving roughly 99% available for gas adsorption.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTortuous airflow path:\u003c\/strong\u003e Gas contaminants pass through tortuous pathways inside the CPS media, ensuring intimate contact between contaminant molecules and the carbon adsorption surface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEliminates post-filtration:\u003c\/strong\u003e The fiber-to-carbon bond eliminates the need for post-filtration in most applications — the carbon stays where it's placed and doesn't shed downstream.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDuraKleen Double Header MERV 8 construction\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm factor:\u003c\/strong\u003e Extended-surface V-cell carbon filter, 12″ deep\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia technology:\u003c\/strong\u003e Celbond Particulate Structure (CPS) — activated carbon suspended in 3D bicomponent fiber network\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon:\u003c\/strong\u003e 500 gsm of 20x50 mesh activated carbon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitial resistance:\u003c\/strong\u003e \u003cstrong\u003e0.24″ w.g.\u003c\/strong\u003e @ 500 FPM — substantially lower than DuraPure honeycomb-cell filters at the same face velocity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeader configuration:\u003c\/strong\u003e Double Header — mounting flange configuration: double header\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMERV rating:\u003c\/strong\u003e MERV 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAvailable depths:\u003c\/strong\u003e 12″ only (deep V-cell architecture)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolishing filter:\u003c\/strong\u003e Koch positions DuraKleen as an \u003cem\u003e\"excellent polishing filter for high contaminant concentrations.\"\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisposability:\u003c\/strong\u003e Single-use disposable; not washable\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKoch published dimensions and media area (PB-1202)\u003c\/h3\u003e\u003ctable style=\"border-collapse:collapse;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eNominal Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eActual Size\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eInitial Resistance @ 500 FPM\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eMedia Area\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e24″x24″x12″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e23.38 x 23.38 x 11.50″\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.24″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e55 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e20″x24″x12″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e19.38 x 23.38 x 11.50″\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.24″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e44 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003e12″x24″x12″\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e11.38 x 23.38 x 11.50″\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.24″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e24 sq ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eThe table above documents Koch's standard published sizes per PB-1202. RTF also stocks 20″x20″x12″ and 20″x25″x12″ in the same DuraKleen CPS construction; carbon load and media area scale proportionally with face dimensions.\u003c\/p\u003e\u003ch3\u003eAirborne molecular contamination (AMC) and polishing filtration\u003c\/h3\u003e\u003cp\u003eDuraKleen is engineered for environments where gas-phase contaminants need to be reduced to \u003cstrong\u003esub-ppm levels\u003c\/strong\u003e — concentrations where standard carbon filtration starts to lose effectiveness. Typical AMC applications include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCleanrooms and semiconductor manufacturing:\u003c\/strong\u003e trace amines, acids, and organics that interfere with photolithography and surface chemistry\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMuseum and archive preservation:\u003c\/strong\u003e trace acids and oxidants that degrade paper, photographs, textiles, and artwork over time\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePharmaceutical manufacturing:\u003c\/strong\u003e trace contaminants that affect product purity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHospital sensitive areas:\u003c\/strong\u003e sub-ppm gas-phase contaminants in operating theaters, isolation rooms, and laboratory spaces\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePolishing filtration:\u003c\/strong\u003e Used downstream of higher-capacity filters (such as DuraPure) to reduce residual contaminant concentrations to levels that primary filters can't reach efficiently\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eDuraKleen is also \u003cstrong\u003eavailable in other media options for the removal of specific types of amines and acid gases\u003c\/strong\u003e — \u003ca href=\"\/pages\/quote\"\u003erequest a quote\u003c\/a\u003e with your target contaminant profile.\u003c\/p\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eDuraKleen is specified for:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eChemical Storage Rooms\u003c\/li\u003e\n\u003cli\u003eHospitals\u003c\/li\u003e\n\u003cli\u003eSports Arenas\u003c\/li\u003e\n\u003cli\u003eLaboratories\u003c\/li\u003e\n\u003cli\u003eAirports\u003c\/li\u003e\n\u003cli\u003eCasinos\u003c\/li\u003e\n\u003cli\u003eMuseums and Archives\u003c\/li\u003e\n\u003cli\u003eIndustrial Facilities\u003c\/li\u003e\n\u003cli\u003ePharmaceutical\u003c\/li\u003e\n\u003cli\u003eCommercial Buildings\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eChoosing your DuraKleen configuration\u003c\/h3\u003e\u003cp\u003eDuraKleen ships in five configurations for housing compatibility and integrated particulate filtration capacity. The choice depends on your existing filter housing and what level of integrated particulate capture you need alongside the gas-phase performance:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/products\/koch-durakleen-single-header-merv-8-cps-carbon-filter\"\u003eDuraKleen Single Header MERV 8\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/products\/koch-durakleen-single-header-merv-15-cps-carbon-filter\"\u003eDuraKleen Single Header MERV 15\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/products\/koch-durakleen-no-header-box-style-merv-8-cps-carbon-filter\"\u003eDuraKleen No Header Box Style MERV 8\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003e\u003ca href=\"\/products\/koch-durakleen-no-header-box-style-merv-15-cps-carbon-filter\"\u003eDuraKleen No Header Box Style MERV 15\u003c\/a\u003e\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIf you're unsure which configuration fits your existing filter housing, \u003ca href=\"\/pages\/contact-us\"\u003econtact RTF support\u003c\/a\u003e with your housing make\/model and we'll help you specify the right header configuration. The MERV rating reflects the integrated particulate filtration capacity of the configuration; all configurations share the same Koch CPS gas-phase carbon performance.\u003c\/p\u003e\u003ch3\u003eDuraKleen vs DuraPure — choosing your gas-phase platform\u003c\/h3\u003e\u003cp\u003eKoch produces two extended-surface 12″-deep carbon filter platforms. They serve different gas-phase use cases:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuraKleen (this product family):\u003c\/strong\u003e CPS bicomponent fiber media with 500 gsm 20x50 mesh carbon. Initial resistance \u003cstrong\u003e0.24″ w.g. @ 500 FPM\u003c\/strong\u003e. Engineered for \u003cstrong\u003esub-ppm AMC removal\u003c\/strong\u003e and polishing filtration. Koch's breakthrough analysis shows DuraKleen outperforming honeycomb carbon designs at low concentration levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/koch-durapure-standard-capacity-v-cell-carbon-filter\"\u003eDuraPure Standard Capacity\u003c\/a\u003e\u003c\/strong\u003e and \u003cstrong\u003e\u003ca href=\"\/products\/koch-durapure-high-capacity-v-cell-carbon-filter\"\u003eDuraPure High Capacity\u003c\/a\u003e:\u003c\/strong\u003e Honeycomb carbon cells with premium coconut shell granular carbon. 18–26 lbs carbon load per filter, 0.34–0.74″ w.g. initial resistance. Engineered for \u003cstrong\u003ehigh-volume gas-phase capacity\u003c\/strong\u003e at moderate contaminant concentrations — specified for airports, industrial facilities, chemical plants, office buildings.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eFor lower-depth gas-phase filtration in 1″\/2″\/4″ pleated panel form factors, see the Koch \u003ca href=\"\/products\/koch-odorkleen-es-merv-8-carbon-particulate-filter\"\u003eOdorKleen ES\u003c\/a\u003e, \u003ca href=\"\/products\/koch-odorkleen-250-carbonweb-merv-8-carbon-particulate-filter\"\u003eOdorKleen 250\u003c\/a\u003e, \u003ca href=\"\/products\/koch-odorkleen-200-m13-merv-13-carbon-particulate-filter\"\u003eOdorKleen 200\/M13\u003c\/a\u003e, and \u003ca href=\"\/products\/koch-odorkleen-600-carbonweb-merv-10-carbon-particulate-filter\"\u003eOdorKleen 600\u003c\/a\u003e.\u003c\/p\u003e\u003ch3\u003eSizing and ordering notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSizes are nominal.\u003c\/strong\u003e Per Koch PB-1202, actual dimensions are slightly less: 24x24x12 nominal = 23.38″ x 23.38″ x 11.50″ actual; same 1\/2″-1″ pattern across sizes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″ deep filters require deep filter racks.\u003c\/strong\u003e Verify your filter housing accommodates 12″ depth before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeader configuration is housing-specific.\u003c\/strong\u003e This product is the Double Header configuration. If your housing requires a different header type, see the \u003cstrong\u003eChoosing your DuraKleen configuration\u003c\/strong\u003e section above for cross-links to the other configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\"Call for Quote\" sizes:\u003c\/strong\u003e Some configuration\/size combinations are special-order only. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e for these or for facility-scale orders.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecialty media:\u003c\/strong\u003e DuraKleen is also available with specialized media for amines and acid gases. \u003ca href=\"\/pages\/quote\"\u003eRequest a quote\u003c\/a\u003e with your target contaminant.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement schedule:\u003c\/strong\u003e Drive by pressure drop curve and breakthrough monitoring. For sub-ppm AMC applications, monitor downstream concentration directly — pressure drop alone may not signal breakthrough at trace contaminant levels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon disposal:\u003c\/strong\u003e Spent CPS media may have specific disposal requirements depending on captured contaminants. Follow your local hazardous waste regulations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKoch product literature\u003c\/h3\u003e\u003cp\u003eDetailed product specifications, Dynamic Breakthrough Analysis, and complete performance data for Koch DuraKleen are published in \u003cstrong\u003eKoch Bulletin PB-1202\u003c\/strong\u003e: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/DuraKleen.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDuraKleen Product Specification PDF\u003c\/a\u003e (Koch Filter Corporation). For specialty media variants targeting amines or acid gases, consult Koch Filter Corporation (\u003ca href=\"https:\/\/www.kochfilter.com\/\" target=\"_blank\" rel=\"noopener\"\u003ekochfilter.com\u003c\/a\u003e) or \u003ca href=\"\/pages\/contact-us\"\u003econtact RTF support\u003c\/a\u003e.\u003c\/p\u003e","brand":"Koch","offers":[{"title":"24\"x24\"x12\" (Case of 1)","offer_id":44119158816890,"sku":"112-686-001","price":763.74,"currency_code":"USD","in_stock":true},{"title":"20\"x25\"x12\" (Call for Quote)","offer_id":44119158849658,"sku":"112-686-202512","price":0.0,"currency_code":"USD","in_stock":false},{"title":"20\"x24\"x12\" (Call for Quote)","offer_id":44119158882426,"sku":"112-686-202412","price":0.0,"currency_code":"USD","in_stock":false},{"title":"20\"x20\"x12\" (Case of 1)","offer_id":44119158915194,"sku":"112-686-005","price":494.16,"currency_code":"USD","in_stock":true},{"title":"12\"x24\"x12\" (Case of 2)","offer_id":44119158947962,"sku":"112-686-002","price":865.84,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/getimage2_e054920b-35a7-450b-bd11-a233f7c27518.png?v=1777864387"},{"product_id":"koch-durakleen-v8-pleated-v-cell-carbon-filter","title":"Koch DuraKleen V8 (MERV 8 Pleated V-Cell Activated Carbon Filter)","description":"\u003cp\u003ePer the Koch DuraKleen V15 \u0026amp; V8 Bulletin (Nov 2024), the Koch \u003cstrong\u003eDuraKleen V8\u003c\/strong\u003e is a \u003cstrong\u003eMERV 8 pleated V-cell activated carbon filter\u003c\/strong\u003e engineered for combined particulate and gas-phase filtration. The DuraKleen V8 uses \u003cstrong\u003epremium grade granular 60% activated coconut shell carbon\u003c\/strong\u003e, encapsulated in pleated media packs between two synthetic layers, for effective removal of \u003cstrong\u003eodors, VOCs, diesel exhaust, acid gases, ammonia, and amines\u003c\/strong\u003e. With \u003cstrong\u003e0.23″ w.g. initial resistance\u003c\/strong\u003e at 500 FPM, the V8 balances gas-phase capacity with airflow performance.\u003c\/p\u003e\u003ch3\u003eWhat you get: pleated V-cell carbon filters, sold by the case\u003c\/h3\u003e\u003cp\u003eEach variant is a complete DuraKleen V8 pleated V-cell filter with a recyclable high-impact polystyrene frame, single header configuration, premium coconut shell activated carbon encapsulated in synthetic pleated media packs. All variants are \u003cstrong\u003e12″ deep\u003c\/strong\u003e:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e24″x24″x12″\u003c\/strong\u003e — 7 lbs carbon, Single filter per case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x24″x12″\u003c\/strong\u003e — 5.5 lbs carbon, Single filter per case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x20″x12″\u003c\/strong\u003e — \u003cem\u003eadditional size\u003c\/em\u003e — carbon load proportional to face area, Single filter per case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x24″x12″\u003c\/strong\u003e — 3.5 lbs carbon, Case of 2\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eThe 20″x20″x12″ size is stocked by RTF beyond Koch's published table (which lists 24x24x12, 20x24x12, and 12x24x12 only). It uses the same DuraKleen V construction at proportional carbon load.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eImportant: DuraKleen V vs DuraKleen (CPS) — two distinct product lines\u003c\/h3\u003e\u003cp\u003eKoch produces two filter lines that share the \"DuraKleen\" name but use different carbon technology and serve different applications:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuraKleen V8 (this product):\u003c\/strong\u003e Pleated media packs encapsulating \u003cstrong\u003epremium coconut shell granular carbon\u003c\/strong\u003e between two synthetic layers. Plastic (high-impact polystyrene) frame. Available in MERV 8 and MERV 15. SKU prefix 111-810 (V8) or 111-811 (V15). Use for combined particulate + gas-phase filtration in airports, industrial facilities, chemical plants, and office buildings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/koch-durakleen-single-header-merv-8-cps-carbon-filter\"\u003eDuraKleen (CPS technology)\u003c\/a\u003e:\u003c\/strong\u003e Celbond Particulate Structure (CPS) media with \u003cstrong\u003e500 gsm of 20x50 mesh activated carbon\u003c\/strong\u003e suspended in a 3D bicomponent fiber network. Plastic and metal frame. Available in \u003cstrong\u003ethree header configurations\u003c\/strong\u003e (Single Header, Box Style\/No Header, Double Header) and MERV 8 or MERV 15. SKU prefix 112-685\/689\/687\/684\/686. Use for \u003cstrong\u003esub-ppm airborne molecular contamination (AMC)\u003c\/strong\u003e and polishing filtration in cleanrooms, semiconductor, museums, and pharmaceutical.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIf you're unsure which DuraKleen line fits your application, \u003ca href=\"\/pages\/contact-us\"\u003econtact RTF support\u003c\/a\u003e — the product name is shared, but the construction and ideal use cases differ.\u003c\/p\u003e\u003ch3\u003eDuraKleen V8 construction and specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm factor:\u003c\/strong\u003e Extended-surface pleated V-cell carbon filter, 12″ deep\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon:\u003c\/strong\u003e Premium grade granular 60% activated \u003cstrong\u003ecoconut shell\u003c\/strong\u003e carbon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia architecture:\u003c\/strong\u003e Pleated media packs \u003cem\u003eencapsulating the carbon between two synthetic layers\u003c\/em\u003e, with the highly active small carbon granules positioned for higher adsorption rates\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia composition:\u003c\/strong\u003e 100% synthetic mechanical media impregnated with activated carbon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e \u003cstrong\u003ePlastic (high-impact polystyrene)\u003c\/strong\u003e — rugged, rigid, easy to install. \u003cstrong\u003eFrame is recyclable.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeader configuration:\u003c\/strong\u003e Single header only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSealant:\u003c\/strong\u003e Thermoplastic hot-melt adhesive secures the individual carbon cells within the frame and eliminates air bypass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMERV rating:\u003c\/strong\u003e MERV 8 per ASHRAE Test Standard 52.2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitial resistance:\u003c\/strong\u003e \u003cstrong\u003e0.23″ w.g.\u003c\/strong\u003e @ 500 FPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended final resistance:\u003c\/strong\u003e 1.5″ w.g.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum continuous operating temperature:\u003c\/strong\u003e 130°F (54°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturing:\u003c\/strong\u003e Manufactured by an ISO 9001 registered company\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisposability:\u003c\/strong\u003e Single-use disposable; not washable\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePerformance data (Koch DuraKleen V series)\u003c\/h3\u003e\u003ctable style=\"border-collapse:collapse;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eEfficiency Tier\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eInitial Resistance @ 500 FPM\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eFinal Resistance\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eMERV Rating\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003eDuraKleen V8\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.23″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e1.5″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003eMERV 8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"\"\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003eDuraKleen V15\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.40″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e1.5″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003eMERV 15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eThe V8 variant (this product) is highlighted above. The MERV 15 layer is denser than the MERV 8 layer, which is why the V15 has higher initial resistance (0.40″ vs 0.23″). Verify your HVAC system can handle the resistance before specifying.\u003c\/p\u003e\u003ch3\u003eTargeted contaminants and gases (per Koch)\u003c\/h3\u003e\u003cp\u003ePer Koch's features list, DuraKleen V is designed for effective removal of:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eOdors and volatile organic compounds (VOCs)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDiesel exhaust\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAcid gases\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAmmonia\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAmines\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe combination of premium coconut shell carbon and pleated media architecture targets these specific gas-phase contaminants alongside MERV 8 particulate capture.\u003c\/p\u003e\u003ch3\u003eContaminants effectively controlled by activated carbon\u003c\/h3\u003e\u003cp\u003ePremium 60% activated coconut shell carbon effectively adsorbs a broad spectrum of gas-phase contaminants. Categories well-controlled include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolatile organic compounds (VOCs) and solvents:\u003c\/strong\u003e acetone, toluene, xylene, methyl ethyl ketone (MEK), methyl isobutyl ketone (MIBK), ethyl acetate, butyl acetate, mineral spirits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChlorinated compounds:\u003c\/strong\u003e carbon tetrachloride, chloroform, trichloroethylene, tetrachloroethylene, ethylene dichloride, chlorobenzene\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAromatic hydrocarbons:\u003c\/strong\u003e benzene, ethylbenzene, styrene, toluene, xylene, naphtha\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAliphatic hydrocarbons:\u003c\/strong\u003e hexane, heptane, octane, decane, undecane, dodecane, cyclohexane\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlcohols and ketones:\u003c\/strong\u003e butyl alcohol, ethanol, isopropyl alcohol, isoamyl alcohol, cyclohexanone, diethyl ketone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSulfur compounds:\u003c\/strong\u003e carbon disulfide, dimethyl disulfide, ethyl sulfide, butyl mercaptan, thiophenol\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNitrogen-containing:\u003c\/strong\u003e pyridine, dibutylamine, pentylamine, nitrogen dioxide (\u0026lt;100 ppb), nitroethane\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhenols and acids:\u003c\/strong\u003e phenol, cresol, acetic acid, butyric acid, formic acid, propionic acid, valeric acid\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eKoch publishes a comprehensive list of approximately 100+ specific compounds in the DuraKleen V15 \u0026amp; V8 bulletin linked at the bottom of this page.\u003c\/p\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eDuraKleen V is specified for:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAirports\u003c\/li\u003e\n\u003cli\u003eIndustrial facilities\u003c\/li\u003e\n\u003cli\u003eChemical plants\u003c\/li\u003e\n\u003cli\u003eOffice buildings\u003c\/li\u003e\n\u003cli\u003eAnd other commercial air filtration systems where combined particulate and gas-phase adsorption is required at MERV 8 efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDuraKleen V8 vs V15 — choosing your tier\u003c\/h3\u003e\u003cp\u003eKoch produces DuraKleen V in two efficiency tiers. The choice comes down to particulate efficiency vs pressure drop:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuraKleen V8 (this product):\u003c\/strong\u003e \u003cstrong\u003eMERV 8\u003c\/strong\u003e particulate efficiency, 0.23″ w.g. initial resistance. \u003cstrong\u003eUse when pressure-drop budget is tight\u003c\/strong\u003e or when standard MERV 8 particulate capture is sufficient. The lower pressure drop is the efficiency-tier advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/koch-durakleen-v15-pleated-v-cell-carbon-filter\"\u003eDuraKleen V15\u003c\/a\u003e:\u003c\/strong\u003e MERV 15 particulate efficiency, 0.40″ w.g. initial resistance. Captures fine particles including wildfire smoke and virus-laden aerosols alongside the gas-phase carbon performance. Use when fine particulate filtration matters alongside gas removal.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOther Koch carbon filtration options\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFor \u003cstrong\u003emaximum gas-phase capacity\u003c\/strong\u003e (18–26 lbs carbon per filter) without MERV 13+ requirements, see \u003ca href=\"\/products\/koch-durapure-standard-capacity-v-cell-carbon-filter\"\u003eKoch DuraPure Standard Capacity\u003c\/a\u003e or \u003ca href=\"\/products\/koch-durapure-high-capacity-v-cell-carbon-filter\"\u003eDuraPure High Capacity\u003c\/a\u003e — honeycomb carbon cell construction.\u003c\/li\u003e\n\u003cli\u003eFor \u003cstrong\u003esub-ppm AMC removal\u003c\/strong\u003e (cleanrooms, museums, semiconductor), see the \u003ca href=\"\/products\/koch-durakleen-single-header-merv-8-cps-carbon-filter\"\u003eKoch DuraKleen (CPS technology) family\u003c\/a\u003e — bicomponent fiber media with 500 gsm 20x50 mesh carbon.\u003c\/li\u003e\n\u003cli\u003eFor \u003cstrong\u003e1″\/2″\/4″ pleated panel\u003c\/strong\u003e form factors, see the OdorKleen family: \u003ca href=\"\/products\/koch-odorkleen-es-merv-8-carbon-particulate-filter\"\u003eOdorKleen ES (MERV 8)\u003c\/a\u003e, \u003ca href=\"\/products\/koch-odorkleen-250-carbonweb-merv-8-carbon-particulate-filter\"\u003eOdorKleen 250 (CarbonWeb MERV 8)\u003c\/a\u003e, \u003ca href=\"\/products\/koch-odorkleen-200-m13-merv-13-carbon-particulate-filter\"\u003eOdorKleen 200\/M13 (MERV 13)\u003c\/a\u003e, and \u003ca href=\"\/products\/koch-odorkleen-600-carbonweb-merv-10-carbon-particulate-filter\"\u003eOdorKleen 600 (MERV 10)\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizing and ordering notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSizes are nominal.\u003c\/strong\u003e Per Koch, actual dimensions follow the standard \"1\/2″ less than nominal\" pattern in width and height (e.g., 24″x24″ nominal = approximately 23-3\/8″x23-3\/8″ actual). Confirm your filter housing accommodates the nominal size.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″ deep filters require deep filter racks.\u003c\/strong\u003e These are commercial\/industrial-scale filters — verify your filter housing accommodates 12″ depth before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle header configuration only\u003c\/strong\u003e — if your housing requires no-header (box style) or double-header configuration, see the \u003ca href=\"\/products\/koch-durakleen-no-header-box-style-merv-8-cps-carbon-filter\"\u003eDuraKleen CPS line\u003c\/a\u003e which offers all three header configurations (physically different product, different carbon technology).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEach variant ships in the case quantity shown.\u003c\/strong\u003e 24x24x12 and 20x24x12 ship as individual filters; 12x24x12 ships 2 per case; 20x20x12 ships individually.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement schedule:\u003c\/strong\u003e Drive by pressure drop curve and odor breakthrough. With Koch's recommended 1.5″ w.g. final resistance, estimate service life from your typical airflow. The V8 starts at 0.23″ w.g. clean.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating temperature limit:\u003c\/strong\u003e 130°F continuous max. Lower than DuraPure or OdorKleen 600 (180°F), so not suitable for elevated-temperature applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon disposal:\u003c\/strong\u003e Spent carbon may have specific disposal requirements depending on captured contaminants and quantities. Follow your local hazardous waste regulations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKoch product literature\u003c\/h3\u003e\u003cp\u003eDetailed product specifications, the complete contaminant list, capacity tables, and full performance data for Koch DuraKleen V8 and V15 are published in the \u003cstrong\u003eKoch DuraKleen V15 \u0026amp; V8 Bulletin (Nov 2024)\u003c\/strong\u003e: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/Koch_DuraKleen_V15_V8_Nov_24.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDuraKleen V15 \u0026amp; V8 Product Specification PDF\u003c\/a\u003e (Koch Filter Corporation). Available through Koch Filter Corporation (\u003ca href=\"https:\/\/www.kochfilter.com\/\" target=\"_blank\" rel=\"noopener\"\u003ekochfilter.com\u003c\/a\u003e) or \u003ca href=\"\/pages\/contact-us\"\u003econtact RTF support\u003c\/a\u003e.\u003c\/p\u003e","brand":"Koch","offers":[{"title":"24\"x24\"x12\" (Case of 1)","offer_id":44119159013498,"sku":"111-810-101","price":914.64,"currency_code":"USD","in_stock":true},{"title":"20\"x24\"x12\" (Case of 1)","offer_id":44119159046266,"sku":"111-810-103","price":877.32,"currency_code":"USD","in_stock":true},{"title":"20\"x20\"x12\" (Case of 1)","offer_id":44119159079034,"sku":"111-810-301","price":687.04,"currency_code":"USD","in_stock":true},{"title":"12\"x24\"x12\" (Case of 2)","offer_id":44119159111802,"sku":"111-810-102","price":1694.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/getimage2_ccdf2e36-eccf-40b3-9dcf-3c81178f09b4.jpg?v=1777865307"},{"product_id":"koch-durakleen-v15-pleated-v-cell-carbon-filter","title":"Koch DuraKleen V15 (MERV 15 Pleated V-Cell Activated Carbon Filter)","description":"\u003cp\u003ePer the Koch DuraKleen V15 \u0026amp; V8 Bulletin (Nov 2024), the Koch \u003cstrong\u003eDuraKleen V15\u003c\/strong\u003e is a \u003cstrong\u003eMERV 15 pleated V-cell activated carbon filter\u003c\/strong\u003e engineered for combined particulate and gas-phase filtration. The DuraKleen V15 uses \u003cstrong\u003epremium grade granular 60% activated coconut shell carbon\u003c\/strong\u003e, encapsulated in pleated media packs between two synthetic layers, for effective removal of \u003cstrong\u003eodors, VOCs, diesel exhaust, acid gases, ammonia, and amines\u003c\/strong\u003e. With \u003cstrong\u003e0.40″ w.g. initial resistance\u003c\/strong\u003e at 500 FPM, the V15 balances gas-phase capacity with airflow performance.\u003c\/p\u003e\u003ch3\u003eWhat you get: pleated V-cell carbon filters, sold by the case\u003c\/h3\u003e\u003cp\u003eEach variant is a complete DuraKleen V15 pleated V-cell filter with a recyclable high-impact polystyrene frame, single header configuration, premium coconut shell activated carbon encapsulated in synthetic pleated media packs. All variants are \u003cstrong\u003e12″ deep\u003c\/strong\u003e:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e24″x24″x12″\u003c\/strong\u003e — 7 lbs carbon, Single filter per case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x24″x12″\u003c\/strong\u003e — 5.5 lbs carbon, Single filter per case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e20″x20″x12″\u003c\/strong\u003e — \u003cem\u003eadditional size\u003c\/em\u003e — carbon load proportional to face area, Single filter per case\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″x24″x12″\u003c\/strong\u003e — 3.6 lbs carbon, Case of 2\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cem\u003eThe 20″x20″x12″ size is stocked by RTF beyond Koch's published table (which lists 24x24x12, 20x24x12, and 12x24x12 only). It uses the same DuraKleen V construction at proportional carbon load.\u003c\/em\u003e\u003c\/p\u003e\u003ch3\u003eImportant: DuraKleen V vs DuraKleen (CPS) — two distinct product lines\u003c\/h3\u003e\u003cp\u003eKoch produces two filter lines that share the \"DuraKleen\" name but use different carbon technology and serve different applications:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuraKleen V15 (this product):\u003c\/strong\u003e Pleated media packs encapsulating \u003cstrong\u003epremium coconut shell granular carbon\u003c\/strong\u003e between two synthetic layers. Plastic (high-impact polystyrene) frame. Available in MERV 8 and MERV 15. SKU prefix 111-810 (V8) or 111-811 (V15). Use for combined particulate + gas-phase filtration in airports, industrial facilities, chemical plants, and office buildings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/koch-durakleen-single-header-merv-8-cps-carbon-filter\"\u003eDuraKleen (CPS technology)\u003c\/a\u003e:\u003c\/strong\u003e Celbond Particulate Structure (CPS) media with \u003cstrong\u003e500 gsm of 20x50 mesh activated carbon\u003c\/strong\u003e suspended in a 3D bicomponent fiber network. Plastic and metal frame. Available in \u003cstrong\u003ethree header configurations\u003c\/strong\u003e (Single Header, Box Style\/No Header, Double Header) and MERV 8 or MERV 15. SKU prefix 112-685\/689\/687\/684\/686. Use for \u003cstrong\u003esub-ppm airborne molecular contamination (AMC)\u003c\/strong\u003e and polishing filtration in cleanrooms, semiconductor, museums, and pharmaceutical.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIf you're unsure which DuraKleen line fits your application, \u003ca href=\"\/pages\/contact-us\"\u003econtact RTF support\u003c\/a\u003e — the product name is shared, but the construction and ideal use cases differ.\u003c\/p\u003e\u003ch3\u003eDuraKleen V15 construction and specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eForm factor:\u003c\/strong\u003e Extended-surface pleated V-cell carbon filter, 12″ deep\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon:\u003c\/strong\u003e Premium grade granular 60% activated \u003cstrong\u003ecoconut shell\u003c\/strong\u003e carbon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia architecture:\u003c\/strong\u003e Pleated media packs \u003cem\u003eencapsulating the carbon between two synthetic layers\u003c\/em\u003e, with the highly active small carbon granules positioned for higher adsorption rates\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMedia composition:\u003c\/strong\u003e 100% synthetic mechanical media impregnated with activated carbon\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e \u003cstrong\u003ePlastic (high-impact polystyrene)\u003c\/strong\u003e — rugged, rigid, easy to install. \u003cstrong\u003eFrame is recyclable.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeader configuration:\u003c\/strong\u003e Single header only\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSealant:\u003c\/strong\u003e Thermoplastic hot-melt adhesive secures the individual carbon cells within the frame and eliminates air bypass\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMERV rating:\u003c\/strong\u003e MERV 15 per ASHRAE Test Standard 52.2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInitial resistance:\u003c\/strong\u003e \u003cstrong\u003e0.40″ w.g.\u003c\/strong\u003e @ 500 FPM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRecommended final resistance:\u003c\/strong\u003e 1.5″ w.g.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum continuous operating temperature:\u003c\/strong\u003e 130°F (54°C)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturing:\u003c\/strong\u003e Manufactured by an ISO 9001 registered company\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDisposability:\u003c\/strong\u003e Single-use disposable; not washable\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003ePerformance data (Koch DuraKleen V series)\u003c\/h3\u003e\u003ctable style=\"border-collapse:collapse;\"\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eEfficiency Tier\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eInitial Resistance @ 500 FPM\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eFinal Resistance\u003c\/th\u003e\n\u003cth style=\"border:1px solid #ccc;padding:8px;text-align:left;\"\u003eMERV Rating\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr style=\"\"\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003eDuraKleen V8\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.23″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e1.5″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003eMERV 8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"background:#f5f5f5;\"\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e\u003cstrong\u003eDuraKleen V15\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e0.40″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003e1.5″ w.g.\u003c\/td\u003e\n\u003ctd style=\"border:1px solid #ccc;padding:8px;\"\u003eMERV 15\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003eThe V15 variant (this product) is highlighted above. The MERV 15 layer is denser than the MERV 8 layer, which is why the V15 has higher initial resistance (0.40″ vs 0.23″). Verify your HVAC system can handle the resistance before specifying.\u003c\/p\u003e\u003ch3\u003eTargeted contaminants and gases (per Koch)\u003c\/h3\u003e\u003cp\u003ePer Koch's features list, DuraKleen V is designed for effective removal of:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eOdors and volatile organic compounds (VOCs)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDiesel exhaust\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAcid gases\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAmmonia\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eAmines\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe combination of premium coconut shell carbon and pleated media architecture targets these specific gas-phase contaminants alongside MERV 15 particulate capture.\u003c\/p\u003e\u003ch3\u003eContaminants effectively controlled by activated carbon\u003c\/h3\u003e\u003cp\u003ePremium 60% activated coconut shell carbon effectively adsorbs a broad spectrum of gas-phase contaminants. Categories well-controlled include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eVolatile organic compounds (VOCs) and solvents:\u003c\/strong\u003e acetone, toluene, xylene, methyl ethyl ketone (MEK), methyl isobutyl ketone (MIBK), ethyl acetate, butyl acetate, mineral spirits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChlorinated compounds:\u003c\/strong\u003e carbon tetrachloride, chloroform, trichloroethylene, tetrachloroethylene, ethylene dichloride, chlorobenzene\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAromatic hydrocarbons:\u003c\/strong\u003e benzene, ethylbenzene, styrene, toluene, xylene, naphtha\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAliphatic hydrocarbons:\u003c\/strong\u003e hexane, heptane, octane, decane, undecane, dodecane, cyclohexane\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAlcohols and ketones:\u003c\/strong\u003e butyl alcohol, ethanol, isopropyl alcohol, isoamyl alcohol, cyclohexanone, diethyl ketone\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSulfur compounds:\u003c\/strong\u003e carbon disulfide, dimethyl disulfide, ethyl sulfide, butyl mercaptan, thiophenol\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNitrogen-containing:\u003c\/strong\u003e pyridine, dibutylamine, pentylamine, nitrogen dioxide (\u0026lt;100 ppb), nitroethane\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePhenols and acids:\u003c\/strong\u003e phenol, cresol, acetic acid, butyric acid, formic acid, propionic acid, valeric acid\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eKoch publishes a comprehensive list of approximately 100+ specific compounds in the DuraKleen V15 \u0026amp; V8 bulletin linked at the bottom of this page.\u003c\/p\u003e\u003ch3\u003eApplications\u003c\/h3\u003e\u003cp\u003eDuraKleen V is specified for:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAirports\u003c\/li\u003e\n\u003cli\u003eIndustrial facilities\u003c\/li\u003e\n\u003cli\u003eChemical plants\u003c\/li\u003e\n\u003cli\u003eOffice buildings\u003c\/li\u003e\n\u003cli\u003eAnd other commercial air filtration systems where combined particulate and gas-phase adsorption is required at MERV 15 efficiency\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eDuraKleen V8 vs V15 — choosing your tier\u003c\/h3\u003e\u003cp\u003eKoch produces DuraKleen V in two efficiency tiers. The choice comes down to particulate efficiency vs pressure drop:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDuraKleen V15 (this product):\u003c\/strong\u003e \u003cstrong\u003eMERV 15\u003c\/strong\u003e particulate efficiency, 0.40″ w.g. initial resistance. Captures fine particles down to sub-micron sizes including wildfire smoke and virus-laden aerosols, alongside the gas-phase carbon performance. \u003cstrong\u003eUse when fine particulate filtration matters\u003c\/strong\u003e alongside gas removal — healthcare, pharmaceutical, lab, and high-IAQ commercial applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003ca href=\"\/products\/koch-durakleen-v8-pleated-v-cell-carbon-filter\"\u003eDuraKleen V8\u003c\/a\u003e:\u003c\/strong\u003e MERV 8 particulate efficiency, 0.23″ w.g. initial resistance. Lower pressure drop saves fan energy. Use when standard MERV 8 particulate capture is sufficient and gas-phase removal is the priority.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOther Koch carbon filtration options\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFor \u003cstrong\u003emaximum gas-phase capacity\u003c\/strong\u003e (18–26 lbs carbon per filter) without MERV 13+ requirements, see \u003ca href=\"\/products\/koch-durapure-standard-capacity-v-cell-carbon-filter\"\u003eKoch DuraPure Standard Capacity\u003c\/a\u003e or \u003ca href=\"\/products\/koch-durapure-high-capacity-v-cell-carbon-filter\"\u003eDuraPure High Capacity\u003c\/a\u003e — honeycomb carbon cell construction.\u003c\/li\u003e\n\u003cli\u003eFor \u003cstrong\u003esub-ppm AMC removal\u003c\/strong\u003e (cleanrooms, museums, semiconductor), see the \u003ca href=\"\/products\/koch-durakleen-single-header-merv-8-cps-carbon-filter\"\u003eKoch DuraKleen (CPS technology) family\u003c\/a\u003e — bicomponent fiber media with 500 gsm 20x50 mesh carbon.\u003c\/li\u003e\n\u003cli\u003eFor \u003cstrong\u003e1″\/2″\/4″ pleated panel\u003c\/strong\u003e form factors, see the OdorKleen family: \u003ca href=\"\/products\/koch-odorkleen-es-merv-8-carbon-particulate-filter\"\u003eOdorKleen ES (MERV 8)\u003c\/a\u003e, \u003ca href=\"\/products\/koch-odorkleen-250-carbonweb-merv-8-carbon-particulate-filter\"\u003eOdorKleen 250 (CarbonWeb MERV 8)\u003c\/a\u003e, \u003ca href=\"\/products\/koch-odorkleen-200-m13-merv-13-carbon-particulate-filter\"\u003eOdorKleen 200\/M13 (MERV 13)\u003c\/a\u003e, and \u003ca href=\"\/products\/koch-odorkleen-600-carbonweb-merv-10-carbon-particulate-filter\"\u003eOdorKleen 600 (MERV 10)\u003c\/a\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizing and ordering notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSizes are nominal.\u003c\/strong\u003e Per Koch, actual dimensions follow the standard \"1\/2″ less than nominal\" pattern in width and height (e.g., 24″x24″ nominal = approximately 23-3\/8″x23-3\/8″ actual). Confirm your filter housing accommodates the nominal size.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12″ deep filters require deep filter racks.\u003c\/strong\u003e These are commercial\/industrial-scale filters — verify your filter housing accommodates 12″ depth before ordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle header configuration only\u003c\/strong\u003e — if your housing requires no-header (box style) or double-header configuration, see the \u003ca href=\"\/products\/koch-durakleen-no-header-box-style-merv-8-cps-carbon-filter\"\u003eDuraKleen CPS line\u003c\/a\u003e which offers all three header configurations (physically different product, different carbon technology).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEach variant ships in the case quantity shown.\u003c\/strong\u003e 24x24x12 and 20x24x12 ship as individual filters; 12x24x12 ships 2 per case; 20x20x12 ships individually.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement schedule:\u003c\/strong\u003e Drive by pressure drop curve and odor breakthrough. With Koch's recommended 1.5″ w.g. final resistance, estimate service life from your typical airflow. The V15 starts at 0.40″ w.g. clean.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOperating temperature limit:\u003c\/strong\u003e 130°F continuous max. Lower than DuraPure or OdorKleen 600 (180°F), so not suitable for elevated-temperature applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon disposal:\u003c\/strong\u003e Spent carbon may have specific disposal requirements depending on captured contaminants and quantities. Follow your local hazardous waste regulations.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eKoch product literature\u003c\/h3\u003e\u003cp\u003eDetailed product specifications, the complete contaminant list, capacity tables, and full performance data for Koch DuraKleen V8 and V15 are published in the \u003cstrong\u003eKoch DuraKleen V15 \u0026amp; V8 Bulletin (Nov 2024)\u003c\/strong\u003e: \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/Koch_DuraKleen_V15_V8_Nov_24.pdf\" target=\"_blank\" rel=\"noopener\"\u003eDuraKleen V15 \u0026amp; V8 Product Specification PDF\u003c\/a\u003e (Koch Filter Corporation). Available through Koch Filter Corporation (\u003ca href=\"https:\/\/www.kochfilter.com\/\" target=\"_blank\" rel=\"noopener\"\u003ekochfilter.com\u003c\/a\u003e) or \u003ca href=\"\/pages\/contact-us\"\u003econtact RTF support\u003c\/a\u003e.\u003c\/p\u003e","brand":"Koch","offers":[{"title":"24\"x24\"x12\" (Case of 1)","offer_id":44119159144570,"sku":"111-811-101","price":1401.12,"currency_code":"USD","in_stock":true},{"title":"20\"x24\"x12\" (Case of 1)","offer_id":44119159177338,"sku":"111-811-103","price":1343.94,"currency_code":"USD","in_stock":true},{"title":"20\"x20\"x12\" (Case of 1)","offer_id":44119159210106,"sku":"111-811-301","price":929.55,"currency_code":"USD","in_stock":true},{"title":"12\"x24\"x12\" (Case of 2)","offer_id":44119159242874,"sku":"111-811-102","price":2562.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/getimage2_1fe30ecd-c151-4a58-a7ae-edd8ad793b4a.jpg?v=1777865313"}],"url":"https:\/\/www.rememberthefilter.com\/collections\/carbon-air-filtration.oembed","provider":"RememberTheFilter.com","version":"1.0","type":"link"}