What's the difference between the Custom Filter Builder and the BioMAX HEPA Builder?
They're two different Koch configurators for two different product categories. The Koch Custom Filter Builder handles pleated and panel filters in MERV 1–13 (Multi-Pleat XL8/XL10/XL11/Green13, MicroSAFE antimicrobial, OdorKLEEN ES carbon, fiberglass, polyester) at any face size in 1/8″ increments — same-day quotes Mon–Fri. The BioMAX HEPA Builder handles HEPA-grade filters (95% DOP, 99.97%, 99.99% scan-tested, 99.999% ULPA) for cleanroom, hospital, and pharmaceutical applications — quote returned within one business day, routed direct to our Koch rep. If you need MERV 1–13, use the Custom Builder. If you need HEPA, use the BioMAX Builder.
Can you cross-reference another manufacturer's filter to a Koch equivalent?
Yes — this is one of our core services. We work directly with Koch representatives to cross nearly any HEPA, high-purity, commercial bag, rigid cell, pleated panel, carbon, or industrial filter to a Koch equivalent, usually within 24 hours. Send your model number, dimensions, MERV or HEPA grade, and quantity to support@rememberthefilter.com or request a quote. We'll route the spec through Koch's engineering team and quote back with the matching Koch part number, lead time, and any equivalency notes.
Is RememberTheFilter an authorized Koch dealer?
Yes. RememberTheFilter is an authorized Koch Filter Corporation dealer. Every Koch filter on this page is sourced through Koch's authorized distribution — no relabels, no overseas knockoffs, no unverified marketplace sellers.
Where are Koch filters manufactured?
Koch Filter Corporation is a family-founded, American-made manufacturer headquartered in Louisville, Kentucky, founded in 1966. Production runs out of four U.S. plants — Louisville (KY), Houston (TX), East Greenville (PA), and Mira Loma (CA).
What's the difference between Multi-Pleat, Multi-Cell, and BioMAX?
Multi-Pleat is Koch's pleated panel line (1″, 2″, and 4″ depths) for residential and light-commercial HVAC, in MERV 8, 10, 11, and 13. Multi-Cell is Koch's rigid box filter line for commercial AHU final-stage filtration. BioMAX is Koch's HEPA and high-efficiency line for hospitals, cleanrooms, pharmaceutical manufacturing, and biocontainment applications. Browse BioMAX HEPA.
What carbon filters does Koch make for VOC and odor removal?
Koch's carbon and gas-phase line includes OdorKleen pleated panels (1″/2″/4″ depths in MERV 8/10/13 with carbon impregnation) for HVAC drop-in applications, DuraPure V-cell honeycomb (12″ deep, 18–26 lbs of 60% activated coconut shell carbon) for industrial gas-phase filtration, and DuraKleen CPS (Celbond Particulate Structure with 500 gsm 20×50 mesh carbon) for sub-ppm airborne molecular contamination in cleanrooms. Browse the full carbon catalog.
Can I order Koch SprayStop and NESHAP-compliant paint booth filters?
Yes. The full Koch SprayStop line covers paint overspray collection: SprayStop S, SHC, HCX synthetic pads and bulk rolls, FG fiberglass, STK high-tack for chromate primers and powder coats, Paint Pockets (Green and White diamond-pocket), and Expanded Paper 3000–3600 series. For NESHAP/MACT compliance, we carry E-Pak 650 (2-stage, for booths after 10/29/1996) and E-Pak 950 (3-stage, for legacy and aerospace). KDF 600 diffusion media for downdraft booth ceilings. Browse paint booth filtration.
Can you get Koch models that aren't listed on your site?
Yes. Koch's catalog is extensive — we list the fast-moving commercial and residential SKUs, and we can source any Koch model that isn't listed. If you have a Koch model number, part number, or a sizing spec, send it over and we'll quote it.
Do you supply Koch HEPA for cleanrooms and hospitals?
Yes. BioMAX HEPA SBW, DTF, HC, CS Minipleat, V2400 (aluminum), V2400-P (ABS plastic), and Fan Filter Units are all available. Most HEPA specs require matching to housing, face velocity, and ISO class — V2400 and V2400-P are listed online with standard sizes; specialty HEPA configurations are quote-based. Browse BioMAX or build a custom BioMAX HEPA.
Can government and federal buyers purchase Koch through you?
Yes. We supply Section 889 / NDAA-compliant Koch sourcing, provide W-9s, COIs, and resale certificates on request, accept purchase orders, and support tax-exempt purchasing for qualified buyers. Contact our government & military team or commercial services team to set up an account.
Do you carry custom-size Koch filters?
Yes. Non-standard Koch pleated and panel sizes are available in 1/8″ increments through our Koch Custom Filter Builder. For HEPA custom builds (BioMAX V2400, V2400-P, and specialty cellsides), use the BioMAX HEPA Builder. Many Koch commercial lines (Multi-Pleat XL-HC series, Green13 Specials, Multi-Sak Custom) have published special-size variants — request a quote with your dimensions.
Where do Koch filters ship from?
Most Koch orders ship plant-direct from the Koch manufacturing location nearest to you, minimizing transit time. Koch operates four U.S. plants: Louisville, Kentucky (corporate HQ), Houston, Texas, East Greenville, Pennsylvania, and Mira Loma, California. East Coast orders typically route from PA or KY, Gulf and Southwest orders from TX, West Coast orders from CA. Some fast-moving SKUs also ship from our own distribution network. Our team chooses the fastest route at order placement. Free U.S. shipping on orders $50 and up.
Can I set up recurring Koch filter delivery?
Yes. Subscribe to any Koch filter at checkout for auto-delivery at 30, 60, 90, 180, or 365-day intervals. For facility-scale recurring delivery across multiple sites, contact our commercial services team.
What's your return policy on Koch filters?
Every Koch filter order is covered by our Filter Fit Guarantee™. If the filter doesn't fit your equipment or arrives damaged, we'll make it right. See the full Filter Fit Guarantee page for details.
