{"title":"18x24x1 Air Filters | Furnace, AC, Heat Pump | Ships Fast","description":"\u003cdiv class=\"rtf-collection-intro\"\u003e\n\n\u003ch2\u003e18x24x1 HVAC, Furnace \u0026amp; AC Filters\u003c\/h2\u003e\n\n\u003cp\u003eReplacement 18x24x1 air filters for homes, offices, and commercial HVAC systems. This collection covers every MERV rating we stock: fiberglass MERV 1–4, pleated MERV 8, MERV 10, MERV 11, and hospital-grade MERV 13. Free shipping on orders over $50.\u003c\/p\u003e\n\n\u003cp\u003eIf your rack is labeled 18x24x1, any filter here will fit. Actual dimensions vary slightly by manufacturer—check the product page for exact specs. Need a non-standard size? Our \u003ca href=\"\/collections\/custom-filters\"\u003ecustom filters\u003c\/a\u003e cut to 1\/8″ precision.\u003c\/p\u003e\n\n\u003ch3\u003eWhich MERV Rating Should I Choose?\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMERV 1–4 (fiberglass)\u003c\/strong\u003e — Lowest cost. Protects your blower and coil from debris but won't improve air quality. Best for rentals and monthly-change schedules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMERV 8 (pleated)\u003c\/strong\u003e — Residential and light-commercial standard. Captures dust, pollen, lint, and mold spores.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMERV 10–11\u003c\/strong\u003e — Captures pet dander, finer particulate, and some bacteria. Recommended for pets, allergies, and facilities pursuing better IAQ.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMERV 13\u003c\/strong\u003e — Hospital-grade. Captures smoke, bacteria, virus carriers, and most airborne allergens. ASHRAE and CDC recommend MERV 13 where the HVAC system can support it.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eNot sure? Take our \u003ca href=\"\/pages\/merv-quiz\"\u003eMERV quiz\u003c\/a\u003e or call \u003cstrong\u003e1-866-469-8556\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003eHow Often Should I Change a 18x24x1 Filter?\u003c\/h3\u003e\n\n\u003cp\u003ePlan on every \u003cstrong\u003e60–90 days\u003c\/strong\u003e for a 1″ filter in a typical residential or light-commercial system. Homes with pets, smokers, or allergies may need to replace every 30–60 days. \u003ca href=\"\/collections\/subscription-filters\"\u003eSubscribe \u0026amp; save 10%\u003c\/a\u003e on any filter in this collection.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Buy From RememberTheFilter.com\u003c\/h3\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrusted brands\u003c\/strong\u003e — AAF Flanders, Koch, and our own PrimeShield line, built by manufacturers we've partnered with for nearly two decades.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFilter Fit Guarantee\u003c\/strong\u003e — if it doesn't fit as expected, we'll make it right.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree shipping over $50\u003c\/strong\u003e to the lower 48, subscription discounts up to 10%, commercial \u0026amp; bulk pricing available.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e","products":[{"product_id":"18x24x1-ez-flow-ii-filters-10055-011824-12-filters","title":"18x24x1 Flanders EZ Flow Fiberglass MERV 1-4 Filter (12 Filters)","description":"\u003cp\u003eThis \u003cstrong\u003e18″ × 24″ × 1″\u003c\/strong\u003e \u003cstrong\u003eFlanders EZ Flow\u003c\/strong\u003e spun-fiberglass panel filter (part number \u003cstrong\u003e10055.011824\u003c\/strong\u003e) ships as a case of \u003cstrong\u003e12 filters\u003c\/strong\u003e and is built for one job: \u003cstrong\u003eprotect your HVAC equipment while maximizing airflow\u003c\/strong\u003e. It's the category-leading fiberglass filter that's been keeping coils, blowers, and heat exchangers free of lint and large debris for decades.\u003c\/p\u003e\n\u003ch3\u003eUnderstanding the MERV 1–4 rating\u003c\/h3\u003e\n\u003cp\u003eFiberglass media is rated \u003cstrong\u003eMERV 1 when clean and builds up to MERV 4\u003c\/strong\u003e as dust loads onto the fibers. That's not inconsistency — it's how spun-glass media works. A fresh filter lets the most air through while still blocking larger debris; as dust collects, the media becomes more efficient at catching finer particles. The goal of a MERV 1–4 filter isn't air quality — it's \u003cstrong\u003eequipment protection with maximum airflow\u003c\/strong\u003e. It keeps lint, hair, and large dust out of your coil and blower, which is exactly what older systems, high-airflow applications, and pre-filter duty need.\u003c\/p\u003e\n\u003ch3\u003eEquipment protection, not air quality\u003c\/h3\u003e\n\u003cp\u003eEZ Flow isn't designed to filter fine dust, allergens, or smoke. It's designed to stop the stuff that damages HVAC equipment — lint, hair, large dust clumps, and insulation fragments — before they hit your coil or blower. For allergen filtration, step up to a pleated MERV 8 or higher. For system protection with maximum airflow (and the lowest filter cost in the category), EZ Flow is the right tool.\u003c\/p\u003e\n\u003ch3\u003eDesign and construction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e Continuous-filament spun fiberglass, bonded with resinous adhesive for rigidity and compression resistance.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e One-piece heavy chipboard — no corner seams to separate. Media adhered directly to the frame with hot-melt adhesive, no metal retainer.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUL listing:\u003c\/strong\u003e UL 900 listed.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eService life:\u003c\/strong\u003e Replace every 30 days under typical use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen EZ Flow is the right choice\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eLegacy or older HVAC systems not designed for higher-MERV static pressure\u003c\/li\u003e\n  \u003cli\u003eRental properties where maintenance burden matters more than fine filtration\u003c\/li\u003e\n  \u003cli\u003eWorkshops, garages, and outbuildings with lots of airborne debris\u003c\/li\u003e\n  \u003cli\u003ePre-filter duty in front of a higher-MERV filter\u003c\/li\u003e\n  \u003cli\u003eCommercial applications prioritizing airflow over fine particulate capture\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpec sheet\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/EZ_Flow_II_AFP-1-392D-3.pdf?v=1753301648%E2%80%B3%20rel=\" noopener target=\"_blank\"\u003eDownload EZ Flow spec sheet (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-1-4-fiberglass-panel-basic-air-filters-12-pack\"\u003ePrimeShield MAX Airflow (MERV 1–4)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"AAF Flanders","offers":[{"title":"Default Title","offer_id":33437763980,"sku":"10055-011824","price":61.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/image_a0ddebe0-4cd6-451c-9fe7-02b27a88c263.jpg?v=1769976530"},{"product_id":"18x24x1-pre-pleat-40-lpd-80055-011824-12-filters","title":"18x24x1 AAF Flanders PREpleat LPD MERV 10 Standard Capacity (12 Filters)","description":"\u003cp\u003eThis \u003cstrong\u003e18″ × 24″ × 1″ Standard Capacity\u003c\/strong\u003e listing (AAF Flanders part number \u003cstrong\u003e80055.011824\u003c\/strong\u003e) of the \u003cstrong\u003eAAF Flanders PREpleat LPD\u003c\/strong\u003e pleated air filter ships as a case of \u003cstrong\u003e12 filters\u003c\/strong\u003e, and delivers \u003cstrong\u003eMERV 10\u003c\/strong\u003e filtration with the lowest initial resistance of any pleated filter in its class. Result: cleaner air, more runtime between changes, and less energy burned pushing air through a loaded filter.\u003c\/p\u003e\n\u003ch3\u003eWhat Standard Capacity means\u003c\/h3\u003e\n\u003cp\u003eThe SC (Standard Capacity) variant is the everyday workhorse of the PREpleat LPD line: the lowest initial resistance in its class while delivering \u003cstrong\u003eMERV 10\u003c\/strong\u003e filtration. For homes, light commercial spaces, and pre-filter duty in larger systems, SC balances filter cost, airflow, and dust-holding to keep HVAC equipment running efficiently.\u003c\/p\u003e\n\u003ch3\u003eSame filter you've ordered for years — now MERV 10\u003c\/h3\u003e\n\u003cp\u003eThe AAF Flanders PREpleat LPD was a MERV 8 filter for most of its life, and many of our repeat customers knew it by that rating. The part number hasn't changed. The frame, pleat geometry, and installation are the same. What changed is the media — AAF upgraded it to a \u003cstrong\u003eMERV 10\u003c\/strong\u003e gradient-density synthetic with no increase in pressure drop and \u003cstrong\u003eno change in price\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIn practice:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBetter filtration, same airflow.\u003c\/strong\u003e Captures a broader particle range than the old MERV 8 while keeping the low initial resistance LPD is known for.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSame fit, same part number.\u003c\/strong\u003e Drop it into the same housing you've always used.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSame service life.\u003c\/strong\u003e If 3 months was your rhythm, 3 months still works.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSame price point.\u003c\/strong\u003e A real filtration upgrade at no cost.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat MERV 10 captures\u003c\/h3\u003e\n\u003cp\u003eFiner household dust, most pollen, mold spores, pet dander, and larger bacteria-sized particles — a practical step up for allergy-sensitive homes, wildfire-smoke regions, and light commercial spaces. Mechanical (not electrostatic) capture means performance doesn't fade as the filter loads.\u003c\/p\u003e\n\u003ch3\u003eDesign and construction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e 100% synthetic non-woven, recyclable, gradient-density. Mechanical capture — performance does not fade with age the way charged-media filters can.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePleat support:\u003c\/strong\u003e Expanded metal continuously laminated to the air-leaving side to hold pleat shape through the filter's service life.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePleat geometry:\u003c\/strong\u003e V-pleat design maximizes usable surface area and keeps pressure drop low across the loading curve.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Heavy-duty two-piece moisture-resistant board with diagonal support members and interlocking corners. Media bonded to the frame at all contact points.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax operating temperature:\u003c\/strong\u003e 180°F (82°C).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere it fits\u003c\/h3\u003e\n\u003cp\u003ePrimary filter in residential returns and light commercial HVAC, and pre-filter ahead of higher-MERV media in larger commercial air handlers. Drop-in replacement for front-access holding frames and side-access housings.\u003c\/p\u003e\n\u003ch3\u003eReplacement schedule\u003c\/h3\u003e\n\u003cp\u003eAt 1″ depth, plan to replace this filter \u003cstrong\u003eevery 60–90 days\u003c\/strong\u003e under typical residential or light commercial loading. High-dust environments, pet homes, wildfire smoke events, or construction-adjacent sites will shorten that window. Check the filter monthly through the first cycle to calibrate your schedule.\u003c\/p\u003e\n\u003ch3\u003eSpec sheet\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/PREpleat_LPD_M10_SC_AFP-1-380C-2.pdf?v=1725043729%E2%80%B3%20rel=\" noopener target=\"_blank\"\u003eDownload PREpleat LPD spec sheet (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-10-pleated-air-filters-12-pack\"\u003ePrimeShield Enhanced (MERV 10)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"AAF Flanders","offers":[{"title":"Default Title","offer_id":44087765270650,"sku":"80055-011824","price":104.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/80055_44b3bfa3-14b7-4b91-b390-05bd7a9ff22d.png?v=1730063958"},{"product_id":"pre-pleat-40-high-capacity-merv-8-12-filters-80255-011824","title":"18x24x1 AAF Flanders PREpleat LPD MERV 10 High Capacity (12 Filters)","description":"\u003cp\u003eThis \u003cstrong\u003e18″ × 24″ × 1″ High Capacity\u003c\/strong\u003e listing (AAF Flanders part number \u003cstrong\u003e80255.011824\u003c\/strong\u003e) of the \u003cstrong\u003eAAF Flanders PREpleat LPD\u003c\/strong\u003e pleated air filter ships as a case of \u003cstrong\u003e12 filters\u003c\/strong\u003e, and delivers \u003cstrong\u003eMERV 10\u003c\/strong\u003e filtration with the lowest initial resistance of any pleated filter in its class. Result: cleaner air, more runtime between changes, and less energy burned pushing air through a loaded filter.\u003c\/p\u003e\n\u003ch3\u003eWhat makes the HC (High Capacity) different?\u003c\/h3\u003e\n\u003cp\u003eThe High Capacity variant uses a denser pleat pattern than the Standard Capacity filter, giving it more media surface area in the same footprint. More surface area means more dust can load before reaching end-of-life pressure drop — so HC filters last longer in dusty environments, light commercial settings, and pre-filter applications where replacement frequency is a cost driver.\u003c\/p\u003e\n\u003ch3\u003eSame filter you've ordered for years — now MERV 10\u003c\/h3\u003e\n\u003cp\u003eThe AAF Flanders PREpleat LPD was a MERV 8 filter for most of its life, and many of our repeat customers knew it by that rating. The part number hasn't changed. The frame, pleat geometry, and installation are the same. What changed is the media — AAF upgraded it to a \u003cstrong\u003eMERV 10\u003c\/strong\u003e gradient-density synthetic with no increase in pressure drop and \u003cstrong\u003eno change in price\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIn practice:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBetter filtration, same airflow.\u003c\/strong\u003e Captures a broader particle range than the old MERV 8 while keeping the low initial resistance LPD is known for.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSame fit, same part number.\u003c\/strong\u003e Drop it into the same housing you've always used.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSame service life.\u003c\/strong\u003e If 3 months was your rhythm, 3 months still works.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSame price point.\u003c\/strong\u003e A real filtration upgrade at no cost.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat MERV 10 captures\u003c\/h3\u003e\n\u003cp\u003eFiner household dust, most pollen, mold spores, pet dander, and larger bacteria-sized particles — a practical step up for allergy-sensitive homes, wildfire-smoke regions, and light commercial spaces. Mechanical (not electrostatic) capture means performance doesn't fade as the filter loads.\u003c\/p\u003e\n\u003ch3\u003eDesign and construction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e 100% synthetic non-woven, recyclable, gradient-density. Mechanical capture — performance does not fade with age the way charged-media filters can.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePleat support:\u003c\/strong\u003e Expanded metal continuously laminated to the air-leaving side to hold pleat shape through the filter's service life.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePleat geometry:\u003c\/strong\u003e V-pleat design maximizes usable surface area and keeps pressure drop low across the loading curve.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Heavy-duty two-piece moisture-resistant board with diagonal support members and interlocking corners. Media bonded to the frame at all contact points.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax operating temperature:\u003c\/strong\u003e 180°F (82°C).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere it fits\u003c\/h3\u003e\n\u003cp\u003ePrimary filter in residential returns and light commercial HVAC, and pre-filter ahead of higher-MERV media in larger commercial air handlers. Drop-in replacement for front-access holding frames and side-access housings.\u003c\/p\u003e\n\u003ch3\u003eReplacement schedule\u003c\/h3\u003e\n\u003cp\u003eAt 1″ depth, plan to replace this filter \u003cstrong\u003eevery 60–90 days\u003c\/strong\u003e under typical residential or light commercial loading. High-dust environments, pet homes, wildfire smoke events, or construction-adjacent sites will shorten that window. Check the filter monthly through the first cycle to calibrate your schedule.\u003c\/p\u003e\n\u003ch3\u003eSpec sheet\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/PrePleat_LPD_M10_HC_AFP-1-379C.pdf?v=1725053079%E2%80%B3%20rel=\" noopener target=\"_blank\"\u003eDownload PREpleat LPD spec sheet (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-10-pleated-air-filters-12-pack\"\u003ePrimeShield Enhanced (MERV 10)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"AAF Flanders","offers":[{"title":"Default Title","offer_id":44087765237882,"sku":"80255-011824","price":131.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/80255_2f89bf9e-648a-46d6-8eab-646d8ae93361.png?v=1730063825"},{"product_id":"prepleat-activated-carbon-12-filters-81255-011824","title":"18x24x1 AAF Flanders PREpleat Activated Carbon Odor Control (12 Filters)","description":"\u003cp\u003eThis \u003cstrong\u003e18″ × 24″ × 1″\u003c\/strong\u003e listing of the \u003cstrong\u003eAAF Flanders PREpleat Activated Carbon Odor Control\u003c\/strong\u003e filter (part number \u003cstrong\u003e81255.011824\u003c\/strong\u003e) ships as a case of \u003cstrong\u003e12 filters\u003c\/strong\u003e and combines a pleated filter with an activated-carbon layer. The carbon adsorbs odor-causing gases, volatile organic compounds (VOCs), cooking smells, pet odors, and light smoke — while the pleated media captures dust and particulates at a MERV 8 efficiency rating.\u003c\/p\u003e\n\u003ch3\u003eWhen to choose an odor-control filter\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eCooking odors lingering through the return-air system\u003c\/li\u003e\n  \u003cli\u003ePet odors in multi-pet households\u003c\/li\u003e\n  \u003cli\u003eSmoke infiltration (wildfire, neighboring properties, light tobacco)\u003c\/li\u003e\n  \u003cli\u003eVOC concerns after painting, new carpet, or cleaning products\u003c\/li\u003e\n  \u003cli\u003eRestaurants, spas, gyms, pet facilities, cannabis operations\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eHow activated carbon filtration works\u003c\/h3\u003e\n\u003cp\u003eActivated carbon is microporous — a single gram has a surface area roughly equivalent to a football field. Odor molecules physically adhere to that surface (adsorption). Unlike particulate capture, carbon saturates over time, so these filters should be replaced on the same 1–3 month schedule as the pleated media itself, or sooner if odor performance degrades.\u003c\/p\u003e\n\u003ch3\u003eDesign and construction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCarbon media:\u003c\/strong\u003e Pleated activated-carbon-impregnated media, bonded to a standard pleated filter substrate.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Moisture-resistant beverage-board with expanded-metal media support.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eParticulate rating:\u003c\/strong\u003e MERV 8 while new; efficiency increases with dust loading.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax operating temperature:\u003c\/strong\u003e 180°F (82°C).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplacement schedule\u003c\/h3\u003e\n\u003cp\u003eAt 1″ depth, plan to replace this filter \u003cstrong\u003eevery 60–90 days\u003c\/strong\u003e under typical residential or light commercial loading. High-dust environments, pet homes, wildfire smoke events, or construction-adjacent sites will shorten that window. Check the filter monthly through the first cycle to calibrate your schedule.\u003c\/p\u003e\n\u003ch3\u003eSpec sheet\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/PREpleat_AC_GPF-1-143.pdf?v=1724342481%E2%80%B3%20rel=\" noopener target=\"_blank\"\u003eDownload PREpleat Carbon spec sheet (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-8-pleated-air-filters-12-pack\"\u003ePrimeShield Essential (MERV 8)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"AAF Flanders","offers":[{"title":"Default Title","offer_id":44087765106810,"sku":"81255-011824","price":198.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/PrePleat_AC_web_e853ef07-d490-4218-8c64-cce05619efc2.png?v=1724345102"},{"product_id":"18x24x1-naturalaire-merv-8-12-filters-84858-011824","title":"18x24x1 NaturalAire Standard MERV 8 (12 Filters)","description":"\u003cp\u003eThis \u003cstrong\u003e18″ × 24″ × 1″\u003c\/strong\u003e listing (part number \u003cstrong\u003e84858.011824\u003c\/strong\u003e) of the \u003cstrong\u003eNaturalAire Standard\u003c\/strong\u003e pleated air filter delivers \u003cstrong\u003eMERV 8\u003c\/strong\u003e filtration and ships as a case of \u003cstrong\u003e12 filters\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIndividually sealed.\u003c\/strong\u003e Every NaturalAire filter ships individually wrapped inside the case — each filter protected from dust, moisture, and shipping damage until you're ready to install it. A real quality difference from bulk-packed competitors, and it matters especially for customers reordering a case at a time.\u003c\/p\u003e\n\u003ch3\u003eMERV 8 — standard efficiency\u003c\/h3\u003e\n\u003cp\u003eMERV 8 is the baseline for good residential and light commercial filtration: effective against household dust, lint, larger pollens, and dust-mite debris — with low pressure drop so it protects airflow and coil performance. It's the right choice when system protection and clean returns are the goal, not allergen-level filtration.\u003c\/p\u003e\n\u003ch3\u003eDesign and construction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e Pleated polyester synthetic media, metal-reinforced, bonded directly to the frame. Mechanical capture — performance doesn't fade with age.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Clay-coated recyclable moisture-resistant beverage-board with wire-mesh support. Bonded pleats prevent air bypass.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax operating temperature:\u003c\/strong\u003e 180°F (82°C)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere it fits\u003c\/h3\u003e\n\u003cp\u003eStandard residential furnaces and central air systems, light commercial HVAC, and apartment\/multi-family installations. Captures dust, lint, pollen, pet dander, mold spores, and dust-mite debris.\u003c\/p\u003e\n\u003ch3\u003eReplacement schedule\u003c\/h3\u003e\n\u003cp\u003eAt 1″ depth, plan to replace this filter \u003cstrong\u003eevery 60–90 days\u003c\/strong\u003e under typical residential or light commercial loading. High-dust environments, pet homes, wildfire smoke events, or construction-adjacent sites will shorten that window. Check the filter monthly through the first cycle to calibrate your schedule.\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-8-pleated-air-filters-12-pack\"\u003ePrimeShield Essential (MERV 8)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"AAF Flanders","offers":[{"title":"Default Title","offer_id":44087765205114,"sku":"84858-011824","price":103.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/4595575_A.eps_High.jpg?v=1769987379"},{"product_id":"pre-pleat-hv-12-filters-85455-011824","title":"18x24x1 AAF Flanders PrePleat HV (High Velocity) MERV 8 (12 Filters)","description":"\u003cp\u003eThe \u003cstrong\u003eAAF Flanders PrePleat HV (High Velocity)\u003c\/strong\u003e pleated air filter delivers \u003cstrong\u003eMERV 8\u003c\/strong\u003e filtration and ships as a case of \u003cstrong\u003e12 filters\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eMERV 8 — standard efficiency\u003c\/h3\u003e\n\u003cp\u003eMERV 8 is the baseline for good residential and light commercial filtration: effective against household dust, lint, larger pollens, and dust-mite debris — with low pressure drop so it protects airflow and coil performance. It's the right choice when system protection and clean returns are the goal, not allergen-level filtration.\u003c\/p\u003e\n\u003ch3\u003eDesign and construction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e High-velocity-rated pleated media engineered for sustained air velocities above standard HVAC (up to 625 FPM).\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Reinforced frame with heavy-gauge media support for high-velocity applications. Stands up to vibration and turbulence.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax operating temperature:\u003c\/strong\u003e 200°F (93°C)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere it fits\u003c\/h3\u003e\n\u003cp\u003eGas-turbine inlet air, high-velocity commercial air handlers, and industrial applications where face velocity exceeds standard HVAC ranges.\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-8-pleated-air-filters-12-pack\"\u003ePrimeShield Essential (MERV 8)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"AAF Flanders","offers":[{"title":"Default","offer_id":33444063564,"sku":"85455-011824","price":192.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/products\/flanders-aaf-pleated-filter-pre-pleat-hv-12-filters-85455-011824-21901033292.gif?v=1496907868"},{"product_id":"pre-pleat-62r-merv-11-12-filters-85655-011824m11","title":"18x24x1 AAF Flanders PREpleat M11 MERV 11 Standard Capacity (12 Filters)","description":"\u003cp\u003eThis \u003cstrong\u003e18″ × 24″ × 1″\u003c\/strong\u003e listing (part number \u003cstrong\u003e85655-011824M11\u003c\/strong\u003e) of the \u003cstrong\u003eAAF Flanders PREpleat M11\u003c\/strong\u003e pleated air filter delivers \u003cstrong\u003eMERV 11\u003c\/strong\u003e filtration in the \u003cstrong\u003eStandard Capacity\u003c\/strong\u003e configuration and ships as a case of \u003cstrong\u003e12 filters\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe PREpleat M11 is a meaningful efficiency upgrade over standard MERV 8 filters — capturing roughly 60–65% of particles in the 1–3 micron range versus the 20–30% typical of MERV 8 — at roughly the same airflow resistance.\u003c\/p\u003e\n\u003ch3\u003eWhat Standard Capacity means\u003c\/h3\u003e\n\u003cp\u003eThe SC (Standard Capacity) configuration is the everyday workhorse of the PREpleat M11 line: MERV 11 filtration with lower initial resistance than the High Capacity variant. For most homes and light commercial spaces, SC balances filter cost, airflow, and dust-holding capacity.\u003c\/p\u003e\n\u003ch3\u003eWhat MERV 11 captures\u003c\/h3\u003e\n\u003cp\u003eFine dust, pollen, pet dander, mold spores, smoke particles, and smaller allergens. MERV 11 is the standard recommendation for households with allergies, asthma, or pets, and is commonly specified for commercial office spaces where indoor air quality is a priority. Confirm your system can handle the slight increase in static pressure compared to MERV 8.\u003c\/p\u003e\n\u003ch3\u003eDesign and construction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e Progressive-density bi-component synthetic fibers. Mechanical capture — performance does not fade as the filter ages.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Moisture-resistant beverage-board with diagonal support members and diamond-shaped expanded-metal media support bonded to the downstream side.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax operating temperature:\u003c\/strong\u003e 180°F (82°C)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere it fits\u003c\/h3\u003e\n\u003cp\u003eCommercial and residential HVAC where MERV 11 filtration is specified. Drop-in replacement for front-access holding frames and side-access housings.\u003c\/p\u003e\n\u003ch3\u003eReplacement schedule\u003c\/h3\u003e\n\u003cp\u003eAt 1″ depth, plan to replace this filter \u003cstrong\u003eevery 60–90 days\u003c\/strong\u003e under typical residential or light commercial loading. High-dust environments, pet homes, wildfire smoke events, or construction-adjacent sites will shorten that window. Check the filter monthly through the first cycle to calibrate your schedule.\u003c\/p\u003e\n\u003ch3\u003eSpec sheet\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/PrePleat_M11_SC.pdf?v=1639547315%E2%80%B3%20rel=\" noopener target=\"_blank\"\u003eDownload PREpleat M11 spec sheet (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-11-pleated-air-filters-12-pack\"\u003ePrimeShield Advanced (MERV 11)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"AAF Flanders","offers":[{"title":"Default Title","offer_id":44087765336186,"sku":"85655-011824M11","price":160.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/85655_a1e65090-4c25-4da7-8c38-cd8ce3807504.png?v=1759359113"},{"product_id":"pre-pleat-62r-merv-11-12-filters-85755-011824m11","title":"18x24x1 AAF Flanders PREpleat M11 MERV 11 High Capacity (12 Filters)","description":"\u003cp\u003eThis \u003cstrong\u003e18″ × 24″ × 1″\u003c\/strong\u003e listing (part number \u003cstrong\u003e85755-011824M11\u003c\/strong\u003e) of the \u003cstrong\u003eAAF Flanders PREpleat M11\u003c\/strong\u003e pleated air filter delivers \u003cstrong\u003eMERV 11\u003c\/strong\u003e filtration in the \u003cstrong\u003eHigh Capacity\u003c\/strong\u003e configuration and ships as a case of \u003cstrong\u003e12 filters\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThe PREpleat M11 is a meaningful efficiency upgrade over standard MERV 8 filters — capturing roughly 60–65% of particles in the 1–3 micron range versus the 20–30% typical of MERV 8 — at roughly the same airflow resistance.\u003c\/p\u003e\n\u003ch3\u003eWhat makes the HC (High Capacity) different?\u003c\/h3\u003e\n\u003cp\u003eThe High Capacity variant uses a denser pleat pattern, giving it more media surface area in the same footprint. More surface area means more dust can load before reaching end-of-life pressure drop — so HC filters last longer in dusty environments, light commercial settings, and pre-filter applications where replacement frequency is a cost driver.\u003c\/p\u003e\n\u003ch3\u003eWhat MERV 11 captures\u003c\/h3\u003e\n\u003cp\u003eFine dust, pollen, pet dander, mold spores, smoke particles, and smaller allergens. MERV 11 is the standard recommendation for households with allergies, asthma, or pets, and is commonly specified for commercial office spaces where indoor air quality is a priority. Confirm your system can handle the slight increase in static pressure compared to MERV 8.\u003c\/p\u003e\n\u003ch3\u003eDesign and construction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e Progressive-density bi-component synthetic fibers. Mechanical capture — performance does not fade as the filter ages.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Moisture-resistant beverage-board with diagonal support members and diamond-shaped expanded-metal media support bonded to the downstream side.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax operating temperature:\u003c\/strong\u003e 180°F (82°C)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere it fits\u003c\/h3\u003e\n\u003cp\u003eCommercial and residential HVAC where MERV 11 filtration is specified. Drop-in replacement for front-access holding frames and side-access housings.\u003c\/p\u003e\n\u003ch3\u003eReplacement schedule\u003c\/h3\u003e\n\u003cp\u003eAt 1″ depth, plan to replace this filter \u003cstrong\u003eevery 60–90 days\u003c\/strong\u003e under typical residential or light commercial loading. High-dust environments, pet homes, wildfire smoke events, or construction-adjacent sites will shorten that window. Check the filter monthly through the first cycle to calibrate your schedule.\u003c\/p\u003e\n\u003ch3\u003eSpec sheet\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/PrePleat_M11_HC_AFP-1-388B.pdf?v=1720461763%E2%80%B3%20rel=\" noopener target=\"_blank\"\u003eDownload PREpleat M11 spec sheet (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-11-pleated-air-filters-12-pack\"\u003ePrimeShield Advanced (MERV 11)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"AAF Flanders","offers":[{"title":"Default Title","offer_id":44087765303418,"sku":"85755-011824M11","price":180.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/85755_988be4d1-e1e8-4639-81a6-d3597914edce.png?v=1759359170"},{"product_id":"18x24x1-naturalaire-microparticle-merv-10-filters-6-pack","title":"18x24x1 NaturalAire Microparticle MERV 10 (6 Filters)","description":"\u003cp\u003eThis \u003cstrong\u003e18″ × 24″ × 1″\u003c\/strong\u003e listing (part number \u003cstrong\u003e85256.011824\u003c\/strong\u003e) of the \u003cstrong\u003eNaturalAire Microparticle\u003c\/strong\u003e pleated air filter delivers \u003cstrong\u003eMERV 10\u003c\/strong\u003e filtration and ships as a case of \u003cstrong\u003e6 filters\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIndividually sealed.\u003c\/strong\u003e Every NaturalAire filter ships individually wrapped inside the case — each filter protected from dust, moisture, and shipping damage until you're ready to install it. A real quality difference from bulk-packed competitors, and it matters especially for customers reordering a case at a time.\u003c\/p\u003e\n\u003ch3\u003eWhat MERV 10 captures\u003c\/h3\u003e\n\u003cp\u003eFiner household dust, most pollen, mold spores, pet dander, and larger bacteria-sized particles — a practical step up for allergy-sensitive homes, wildfire-smoke regions, and light commercial spaces. Mechanical (not electrostatic) capture means performance doesn't fade as the filter loads.\u003c\/p\u003e\n\u003ch3\u003eDesign and construction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e Microparticle pleated synthetic media with enhanced surface area. Mechanical capture — performance doesn't fade with age.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Clay-coated recyclable moisture-resistant beverage-board with wire-mesh media support.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax operating temperature:\u003c\/strong\u003e 180°F (82°C)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere it fits\u003c\/h3\u003e\n\u003cp\u003eResidential and light commercial HVAC where MERV 10 filtration is wanted for allergy sensitivity, pet dander, mold spores, or finer dust capture — without the pressure drop of MERV 13.\u003c\/p\u003e\n\u003ch3\u003eReplacement schedule\u003c\/h3\u003e\n\u003cp\u003eAt 1″ depth, plan to replace this filter \u003cstrong\u003eevery 60–90 days\u003c\/strong\u003e under typical residential or light commercial loading. High-dust environments, pet homes, wildfire smoke events, or construction-adjacent sites will shorten that window. Check the filter monthly through the first cycle to calibrate your schedule.\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-10-pleated-air-filters-12-pack\"\u003ePrimeShield Enhanced (MERV 10)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"AAF Flanders","offers":[{"title":"Default Title","offer_id":44087765172346,"sku":"85256-011824","price":77.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/4000976_A.eps_High.jpg?v=1769985106"},{"product_id":"18x24x1-exact-pleated-merv-8-filters-12-pack","title":"18x24x1 Exact Filters Pleated MERV 8 (12 pack)","description":"\u003cp\u003eThis air filter is made to a 18 x 24 x 1″ nominal size for HVAC systems, air handlers, and return grilles that require an exact custom dimension rather than a standard retail size.\u003c\/p\u003e\n\n\u003cp\u003eEven a quarter-inch of gap around a filter can allow a significant percentage of return air to bypass the media entirely, which is why the exact fit matters as much as the filter's efficiency rating.\u003c\/p\u003e\n\n\u003cp\u003eThis MERV 8 pleated filter is built for sites that want better capture than economy fiberglass without pushing the blower to work harder than necessary. It handles the airborne particles most occupants actually notice — dust, pollen, pet dander — while keeping static pressure in a range every standard system can tolerate.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eNominal size: 18 x 24 x 1″\u003c\/li\u003e\n  \u003cli\u003eActual dimensions: 18 x 24 x 3\/4″\u003c\/li\u003e\n  \u003cli\u003eEfficiency rating: MERV 8\u003c\/li\u003e\n  \u003cli\u003eQuantity: 12 filters per carton\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eCommon applications for a 18 x 24 x 1″ custom filter include retrofit installations, legacy HVAC systems installed before standard sizes were codified, built-in return grilles that were framed to non-standard dimensions, and commercial unit housings that don't match any current off-the-shelf size.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSuitable for forced-air furnaces, central AC, heat pumps, and packaged HVAC systems\u003c\/li\u003e\n  \u003cli\u003eReplace approximately every 90 days in standard installations; shorter intervals in high-dust, smoky, or heavy-use environments\u003c\/li\u003e\n  \u003cli\u003ePleated construction (or fiberglass, depending on MERV tier) designed for balanced capture and airflow\u003c\/li\u003e\n  \u003cli\u003eMade to your exact 18 x 24 x 1″ specification — no trimming or taping required at installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp style=\"font-family:Arial,Helvetica,sans-serif;font-size:15px;font-weight:bold;color:#1E2D7D;margin:0 0 12px 0;\"\u003eSame 18 x 24 x 1″ size, different efficiency rating\u003c\/p\u003e\u003ctable width=\"100%\" cellpadding=\"0\" cellspacing=\"8\" style=\"border-collapse:separate;margin:18px 0 0 0;padding:0;\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd style=\"width:33.3333%;vertical-align:top;padding:0;\"\u003e\u003ca href=\"\/products\/18x24x1-exact-ez-flow-basic-merv-4-filters-12-pack\" style=\"display:block;background-color:#000000;color:#ffffff;text-decoration:none;padding:14px 12px;border-radius:6px;font-family:Arial,Helvetica,sans-serif;font-weight:bold;font-size:15px;line-height:1.25;text-align:center;box-sizing:border-box;\" aria-label=\"See the 18 x 24 x 1″ filter in MERV 1-4\" title=\"See the 18 x 24 x 1″ filter in MERV 1-4\"\u003eMERV 1-4\u003cspan style=\"display:block;font-weight:normal;font-size:12px;color:#ffffff;opacity:0.9;margin-top:2px;\"\u003eBasic dust-stop\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width:33.3333%;vertical-align:top;padding:0;\"\u003e\u003ca href=\"\/products\/18x24x1-exact-pleated-merv-11-filters-12-pack\" style=\"display:block;background-color:#6B3FA0;color:#ffffff;text-decoration:none;padding:14px 12px;border-radius:6px;font-family:Arial,Helvetica,sans-serif;font-weight:bold;font-size:15px;line-height:1.25;text-align:center;box-sizing:border-box;\" aria-label=\"See the 18 x 24 x 1″ filter in MERV 11\" title=\"See the 18 x 24 x 1″ filter in MERV 11\"\u003eMERV 11\u003cspan style=\"display:block;font-weight:normal;font-size:12px;color:#ffffff;opacity:0.9;margin-top:2px;\"\u003eEnhanced efficiency\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width:33.3333%;vertical-align:top;padding:0;\"\u003e\u003ca href=\"\/products\/18x24x1-exact-pleated-merv-13-filters-12-pack\" style=\"display:block;background-color:#C8102E;color:#ffffff;text-decoration:none;padding:14px 12px;border-radius:6px;font-family:Arial,Helvetica,sans-serif;font-weight:bold;font-size:15px;line-height:1.25;text-align:center;box-sizing:border-box;\" aria-label=\"See the 18 x 24 x 1″ filter in MERV 13\" title=\"See the 18 x 24 x 1″ filter in MERV 13\"\u003eMERV 13\u003cspan style=\"display:block;font-weight:normal;font-size:12px;color:#ffffff;opacity:0.9;margin-top:2px;\"\u003eHighest efficiency\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\n\u003ctable width=\"100%\" cellpadding=\"0\" cellspacing=\"0\" border=\"0\" style=\"border-collapse:separate;margin:24px 0 0 0;padding:0;\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd style=\"background-color:#1E2D7D;border-radius:8px;padding:22px 24px;vertical-align:top;\"\u003e\n\u003cp style=\"font-family:Arial,Helvetica,sans-serif;font-size:18px;font-weight:bold;color:#ffffff;margin:0 0 8px 0;line-height:1.3;\"\u003eNeed 18 x 24 x 2″ or another depth?\u003c\/p\u003e\n\u003cp style=\"font-family:Arial,Helvetica,sans-serif;font-size:14px;color:#ffffff;margin:0 0 16px 0;line-height:1.55;opacity:0.95;\"\u003eThis size is available in other depths we don't stock online — reach out and our team will quote it for you, typically same business day.\u003c\/p\u003e\n\u003ctable cellpadding=\"0\" cellspacing=\"10\" border=\"0\" style=\"border-collapse:separate;margin:0;padding:0;\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd style=\"padding:0;vertical-align:top;\"\u003e\u003ca href=\"tel:+18664698556\" style=\"display:block;background-color:#007B6B;color:#ffffff;text-decoration:none;padding:14px 22px;border-radius:6px;font-family:Arial,Helvetica,sans-serif;font-weight:bold;font-size:16px;line-height:1.2;text-align:center;box-sizing:border-box;white-space:nowrap;\"\u003eCall 866-469-8556\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:0;vertical-align:top;\"\u003e\u003ca href=\"\/pages\/contact-us\" style=\"display:block;background-color:#ffffff;color:#1E2D7D;text-decoration:none;padding:14px 22px;border-radius:6px;font-family:Arial,Helvetica,sans-serif;font-weight:bold;font-size:16px;line-height:1.2;text-align:center;box-sizing:border-box;white-space:nowrap;\"\u003eContact us for a quote\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Exact Filters","offers":[{"title":"Default Title","offer_id":44086443933818,"sku":"80055-01499 18 x 24 x 1 E","price":211.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/ExactM8_9a2749b0-43cb-440e-a5bb-1ccdd30fe1e1.jpg?v=1749226839"},{"product_id":"18x24x1-exact-ez-flow-basic-merv-4-filters-12-pack","title":"18x24x1 Exact Filters Fiberglass MERV 1-4 (12 pack)","description":"\u003cp\u003eThis air filter is made to a 18 x 24 x 1″ nominal size for HVAC systems, air handlers, and return grilles that require an exact custom dimension rather than a standard retail size.\u003c\/p\u003e\n\n\u003cp\u003eA custom-cut filter keeps every cubic foot of return air flowing through the media rather than around it, which is the foundation of any effective filtration setup.\u003c\/p\u003e\n\n\u003cp\u003eThe MERV 1-4 rating on this filter is best understood as mechanical protection rather than air cleaning. It catches debris that would otherwise reduce your coil's heat-transfer efficiency, while imposing the lowest static pressure penalty of any rating we offer.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eNominal size: 18 x 24 x 1″\u003c\/li\u003e\n  \u003cli\u003eActual dimensions: 18 x 24 x 3\/4″\u003c\/li\u003e\n  \u003cli\u003eEfficiency rating: MERV 1-4\u003c\/li\u003e\n  \u003cli\u003eQuantity: 12 filters per carton\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe 18 x 24 x 1″ dimension is one of the many non-standard sizes we make on demand, serving both retrofit installations in older homes and light-commercial properties where the return housing dates to an older era of HVAC construction.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCardboard frame with reinforced media for structural stability during handling and installation\u003c\/li\u003e\n  \u003cli\u003eSold as a 12-pack so you have a full year of replacements on hand\u003c\/li\u003e\n  \u003cli\u003eSuitable for forced-air furnaces, central AC, heat pumps, and packaged HVAC systems\u003c\/li\u003e\n  \u003cli\u003eReplace approximately every 90 days in standard installations; shorter intervals in high-dust, smoky, or heavy-use environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp style=\"font-family:Arial,Helvetica,sans-serif;font-size:15px;font-weight:bold;color:#1E2D7D;margin:0 0 12px 0;\"\u003eSame 18 x 24 x 1″ size, different efficiency rating\u003c\/p\u003e\u003ctable width=\"100%\" cellpadding=\"0\" cellspacing=\"8\" style=\"border-collapse:separate;margin:18px 0 0 0;padding:0;\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd style=\"width:33.3333%;vertical-align:top;padding:0;\"\u003e\u003ca href=\"\/products\/18x24x1-exact-pleated-merv-8-filters-12-pack\" style=\"display:block;background-color:#007B6B;color:#ffffff;text-decoration:none;padding:14px 12px;border-radius:6px;font-family:Arial,Helvetica,sans-serif;font-weight:bold;font-size:15px;line-height:1.25;text-align:center;box-sizing:border-box;\" aria-label=\"See the 18 x 24 x 1″ filter in MERV 8\" title=\"See the 18 x 24 x 1″ filter in MERV 8\"\u003eMERV 8\u003cspan style=\"display:block;font-weight:normal;font-size:12px;color:#ffffff;opacity:0.9;margin-top:2px;\"\u003eStandard efficiency\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width:33.3333%;vertical-align:top;padding:0;\"\u003e\u003ca href=\"\/products\/18x24x1-exact-pleated-merv-11-filters-12-pack\" style=\"display:block;background-color:#6B3FA0;color:#ffffff;text-decoration:none;padding:14px 12px;border-radius:6px;font-family:Arial,Helvetica,sans-serif;font-weight:bold;font-size:15px;line-height:1.25;text-align:center;box-sizing:border-box;\" aria-label=\"See the 18 x 24 x 1″ filter in MERV 11\" title=\"See the 18 x 24 x 1″ filter in MERV 11\"\u003eMERV 11\u003cspan style=\"display:block;font-weight:normal;font-size:12px;color:#ffffff;opacity:0.9;margin-top:2px;\"\u003eEnhanced efficiency\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width:33.3333%;vertical-align:top;padding:0;\"\u003e\u003ca href=\"\/products\/18x24x1-exact-pleated-merv-13-filters-12-pack\" style=\"display:block;background-color:#C8102E;color:#ffffff;text-decoration:none;padding:14px 12px;border-radius:6px;font-family:Arial,Helvetica,sans-serif;font-weight:bold;font-size:15px;line-height:1.25;text-align:center;box-sizing:border-box;\" aria-label=\"See the 18 x 24 x 1″ filter in MERV 13\" title=\"See the 18 x 24 x 1″ filter in MERV 13\"\u003eMERV 13\u003cspan style=\"display:block;font-weight:normal;font-size:12px;color:#ffffff;opacity:0.9;margin-top:2px;\"\u003eHighest efficiency\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\n\u003ctable width=\"100%\" cellpadding=\"0\" cellspacing=\"0\" border=\"0\" style=\"border-collapse:separate;margin:24px 0 0 0;padding:0;\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd style=\"background-color:#1E2D7D;border-radius:8px;padding:22px 24px;vertical-align:top;\"\u003e\n\u003cp style=\"font-family:Arial,Helvetica,sans-serif;font-size:18px;font-weight:bold;color:#ffffff;margin:0 0 8px 0;line-height:1.3;\"\u003eNeed 18 x 24 x 2″ or another depth?\u003c\/p\u003e\n\u003cp style=\"font-family:Arial,Helvetica,sans-serif;font-size:14px;color:#ffffff;margin:0 0 16px 0;line-height:1.55;opacity:0.95;\"\u003eThis size is available in other depths we don't stock online — reach out and our team will quote it for you, typically same business day.\u003c\/p\u003e\n\u003ctable cellpadding=\"0\" cellspacing=\"10\" border=\"0\" style=\"border-collapse:separate;margin:0;padding:0;\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd style=\"padding:0;vertical-align:top;\"\u003e\u003ca href=\"tel:+18664698556\" style=\"display:block;background-color:#007B6B;color:#ffffff;text-decoration:none;padding:14px 22px;border-radius:6px;font-family:Arial,Helvetica,sans-serif;font-weight:bold;font-size:16px;line-height:1.2;text-align:center;box-sizing:border-box;white-space:nowrap;\"\u003eCall 866-469-8556\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:0;vertical-align:top;\"\u003e\u003ca href=\"\/pages\/contact-us\" style=\"display:block;background-color:#ffffff;color:#1E2D7D;text-decoration:none;padding:14px 22px;border-radius:6px;font-family:Arial,Helvetica,sans-serif;font-weight:bold;font-size:16px;line-height:1.2;text-align:center;box-sizing:border-box;white-space:nowrap;\"\u003eContact us for a quote\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Exact Filters","offers":[{"title":"Default Title","offer_id":44083775996026,"sku":"10055-01499 18 x 24 x 1 E","price":183.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/ExactM1_1268x1134_2ba99fd2-2561-4ffa-8b7c-f5323ea1e298.jpg?v=1749318097"},{"product_id":"18x24x1-nested-glass-ez-green-filters-10059-011824-24-filters","title":"18x24x1 Flanders Nested Glass EZ-Green Filter (24 Filters)","description":"\u003cp\u003eThe \u003cstrong\u003eFlanders Nested Glass EZ-Green\u003c\/strong\u003e 18″ × 24″ × 1″ is a fiberglass panel filter with nested media layers that increase dust-holding capacity over standard spun-glass panels — while keeping the same low pressure drop and high airflow characteristics.\u003c\/p\u003e\n\u003ch3\u003eUnderstanding the MERV 1–4 rating\u003c\/h3\u003e\n\u003cp\u003eFiberglass media is rated \u003cstrong\u003eMERV 1 when clean and builds up to MERV 4\u003c\/strong\u003e as dust loads onto the fibers. That's not inconsistency — it's how spun-glass media works. A fresh filter lets the most air through while still blocking larger debris; as dust collects, the media becomes more efficient at catching finer particles. The goal of a MERV 1–4 filter isn't air quality — it's \u003cstrong\u003eequipment protection with maximum airflow\u003c\/strong\u003e. It keeps lint, hair, and large dust out of your coil and blower, which is exactly what older systems, high-airflow applications, and pre-filter duty need.\u003c\/p\u003e\n\u003ch3\u003eConstruction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e Nested layers of continuous-filament fiberglass with gradient density for progressive dust capture.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Heavy chipboard, one-piece moisture-resistant.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eService life:\u003c\/strong\u003e Up to 60 days under typical use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-1-4-fiberglass-panel-basic-air-filters-12-pack\"\u003ePrimeShield MAX Airflow (MERV 1–4)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"AAF Flanders","offers":[{"title":"Default Title","offer_id":12441553502330,"sku":"10059-011824","price":114.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/10059_db18d633-337b-4aac-a265-831d6ef71275.png?v=1759413616"},{"product_id":"18x24x1-exact-pleated-merv-11-filters-12-pack","title":"18x24x1 Exact Filters Pleated MERV 11 (12 pack)","description":"\u003cp\u003eThis 18 x 24 x 1″ Exact Filters® air filter is manufactured to your exact dimensions, eliminating the guesswork of matching an off-the-shelf filter to a non-standard 18 x 24 x 1″ opening.\u003c\/p\u003e\n\n\u003cp\u003eEven a quarter-inch of gap around a filter can allow a significant percentage of return air to bypass the media entirely, which is why the exact fit matters as much as the filter's efficiency rating.\u003c\/p\u003e\n\n\u003cp\u003eThis MERV 11 pleated filter is engineered for buildings where filtration matters — allergy-prone households, sites with pets, properties near construction or agriculture, light-commercial spaces with elevated particulate loads — but where the HVAC system wasn't originally specified for the higher static pressure of a MERV 13.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eNominal size: 18 x 24 x 1″\u003c\/li\u003e\n  \u003cli\u003eActual dimensions: 18 x 24 x 3\/4″\u003c\/li\u003e\n  \u003cli\u003eEfficiency rating: MERV 11\u003c\/li\u003e\n  \u003cli\u003eQuantity: 12 filters per carton\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThis 18 x 24 x 1″ filter size is frequently ordered by homeowners with older systems, property managers handling mixed-vintage HVAC equipment, and facilities maintenance teams servicing buildings where no two return grilles seem to measure the same.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eSold as a 12-pack so you have a full year of replacements on hand\u003c\/li\u003e\n  \u003cli\u003eOrientation arrow printed on the frame to ensure correct airflow direction at install\u003c\/li\u003e\n  \u003cli\u003ePleated construction (or fiberglass, depending on MERV tier) designed for balanced capture and airflow\u003c\/li\u003e\n  \u003cli\u003eSuitable for forced-air furnaces, central AC, heat pumps, and packaged HVAC systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp style=\"font-family:Arial,Helvetica,sans-serif;font-size:15px;font-weight:bold;color:#1E2D7D;margin:0 0 12px 0;\"\u003eSame 18 x 24 x 1″ size, different efficiency rating\u003c\/p\u003e\u003ctable width=\"100%\" cellpadding=\"0\" cellspacing=\"8\" style=\"border-collapse:separate;margin:18px 0 0 0;padding:0;\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd style=\"width:33.3333%;vertical-align:top;padding:0;\"\u003e\u003ca href=\"\/products\/18x24x1-exact-ez-flow-basic-merv-4-filters-12-pack\" style=\"display:block;background-color:#000000;color:#ffffff;text-decoration:none;padding:14px 12px;border-radius:6px;font-family:Arial,Helvetica,sans-serif;font-weight:bold;font-size:15px;line-height:1.25;text-align:center;box-sizing:border-box;\" aria-label=\"See the 18 x 24 x 1″ filter in MERV 1-4\" title=\"See the 18 x 24 x 1″ filter in MERV 1-4\"\u003eMERV 1-4\u003cspan style=\"display:block;font-weight:normal;font-size:12px;color:#ffffff;opacity:0.9;margin-top:2px;\"\u003eBasic dust-stop\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width:33.3333%;vertical-align:top;padding:0;\"\u003e\u003ca href=\"\/products\/18x24x1-exact-pleated-merv-8-filters-12-pack\" style=\"display:block;background-color:#007B6B;color:#ffffff;text-decoration:none;padding:14px 12px;border-radius:6px;font-family:Arial,Helvetica,sans-serif;font-weight:bold;font-size:15px;line-height:1.25;text-align:center;box-sizing:border-box;\" aria-label=\"See the 18 x 24 x 1″ filter in MERV 8\" title=\"See the 18 x 24 x 1″ filter in MERV 8\"\u003eMERV 8\u003cspan style=\"display:block;font-weight:normal;font-size:12px;color:#ffffff;opacity:0.9;margin-top:2px;\"\u003eStandard efficiency\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width:33.3333%;vertical-align:top;padding:0;\"\u003e\u003ca href=\"\/products\/18x24x1-exact-pleated-merv-13-filters-12-pack\" style=\"display:block;background-color:#C8102E;color:#ffffff;text-decoration:none;padding:14px 12px;border-radius:6px;font-family:Arial,Helvetica,sans-serif;font-weight:bold;font-size:15px;line-height:1.25;text-align:center;box-sizing:border-box;\" aria-label=\"See the 18 x 24 x 1″ filter in MERV 13\" title=\"See the 18 x 24 x 1″ filter in MERV 13\"\u003eMERV 13\u003cspan style=\"display:block;font-weight:normal;font-size:12px;color:#ffffff;opacity:0.9;margin-top:2px;\"\u003eHighest efficiency\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\n\u003ctable width=\"100%\" cellpadding=\"0\" cellspacing=\"0\" border=\"0\" style=\"border-collapse:separate;margin:24px 0 0 0;padding:0;\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd style=\"background-color:#1E2D7D;border-radius:8px;padding:22px 24px;vertical-align:top;\"\u003e\n\u003cp style=\"font-family:Arial,Helvetica,sans-serif;font-size:18px;font-weight:bold;color:#ffffff;margin:0 0 8px 0;line-height:1.3;\"\u003eNeed 18 x 24 x 2″ or another depth?\u003c\/p\u003e\n\u003cp style=\"font-family:Arial,Helvetica,sans-serif;font-size:14px;color:#ffffff;margin:0 0 16px 0;line-height:1.55;opacity:0.95;\"\u003eThis size is available in other depths we don't stock online — reach out and our team will quote it for you, typically same business day.\u003c\/p\u003e\n\u003ctable cellpadding=\"0\" cellspacing=\"10\" border=\"0\" style=\"border-collapse:separate;margin:0;padding:0;\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd style=\"padding:0;vertical-align:top;\"\u003e\u003ca href=\"tel:+18664698556\" style=\"display:block;background-color:#007B6B;color:#ffffff;text-decoration:none;padding:14px 22px;border-radius:6px;font-family:Arial,Helvetica,sans-serif;font-weight:bold;font-size:16px;line-height:1.2;text-align:center;box-sizing:border-box;white-space:nowrap;\"\u003eCall 866-469-8556\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:0;vertical-align:top;\"\u003e\u003ca href=\"\/pages\/contact-us\" style=\"display:block;background-color:#ffffff;color:#1E2D7D;text-decoration:none;padding:14px 22px;border-radius:6px;font-family:Arial,Helvetica,sans-serif;font-weight:bold;font-size:16px;line-height:1.2;text-align:center;box-sizing:border-box;white-space:nowrap;\"\u003eContact us for a quote\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Exact Filters","offers":[{"title":"Default Title","offer_id":20122405470330,"sku":"85655-01499 18 x 24 x 1 E","price":235.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/ExactM11_1400x1400_f8cca493-3c8e-4843-9253-225d48b12721.jpg?v=1749242490"},{"product_id":"18x24x1-exact-pleated-merv-13-filters-12-pack","title":"18x24x1 Exact Filters Pleated MERV 13 (12 pack)","description":"\u003cp\u003eDesigned for homeowners and facilities managers dealing with an unusual 18 x 24 x 1″ filter housing, this Exact Filters® filter is produced on-demand to fit your opening precisely.\u003c\/p\u003e\n\n\u003cp\u003eA properly fitting filter seals against the housing, so all return air is forced through the media instead of leaking around the frame.\u003c\/p\u003e\n\n\u003cp\u003eMERV 13 is the top efficiency offered in the Exact Filters® line. It captures the broadest range of airborne particles we make, including fine dust, smoke particles, and the submicron fraction that carries many allergens and bioaerosols. Buildings dealing with wildfire smoke, indoor air-quality concerns, or sensitive occupants commonly step up to this rating.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eNominal size: 18 x 24 x 1″\u003c\/li\u003e\n  \u003cli\u003eActual dimensions: 18 x 24 x 3\/4″\u003c\/li\u003e\n  \u003cli\u003eEfficiency rating: MERV 13\u003c\/li\u003e\n  \u003cli\u003eQuantity: 12 filters per carton\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eCustomers typically order a 18 x 24 x 1″ custom filter because their system is older, was built by a regional manufacturer, was retrofitted, or was framed on-site by an installer who didn't conform to a standard filter dimension. If that describes your situation, you're in the right place.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCardboard frame with reinforced media for structural stability during handling and installation\u003c\/li\u003e\n  \u003cli\u003eReplace approximately every 90 days in standard installations; shorter intervals in high-dust, smoky, or heavy-use environments\u003c\/li\u003e\n  \u003cli\u003eOrientation arrow printed on the frame to ensure correct airflow direction at install\u003c\/li\u003e\n  \u003cli\u003eSuitable for forced-air furnaces, central AC, heat pumps, and packaged HVAC systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp style=\"font-family:Arial,Helvetica,sans-serif;font-size:15px;font-weight:bold;color:#1E2D7D;margin:0 0 12px 0;\"\u003eSame 18 x 24 x 1″ size, different efficiency rating\u003c\/p\u003e\u003ctable width=\"100%\" cellpadding=\"0\" cellspacing=\"8\" style=\"border-collapse:separate;margin:18px 0 0 0;padding:0;\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd style=\"width:33.3333%;vertical-align:top;padding:0;\"\u003e\u003ca href=\"\/products\/18x24x1-exact-ez-flow-basic-merv-4-filters-12-pack\" style=\"display:block;background-color:#000000;color:#ffffff;text-decoration:none;padding:14px 12px;border-radius:6px;font-family:Arial,Helvetica,sans-serif;font-weight:bold;font-size:15px;line-height:1.25;text-align:center;box-sizing:border-box;\" aria-label=\"See the 18 x 24 x 1″ filter in MERV 1-4\" title=\"See the 18 x 24 x 1″ filter in MERV 1-4\"\u003eMERV 1-4\u003cspan style=\"display:block;font-weight:normal;font-size:12px;color:#ffffff;opacity:0.9;margin-top:2px;\"\u003eBasic dust-stop\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width:33.3333%;vertical-align:top;padding:0;\"\u003e\u003ca href=\"\/products\/18x24x1-exact-pleated-merv-8-filters-12-pack\" style=\"display:block;background-color:#007B6B;color:#ffffff;text-decoration:none;padding:14px 12px;border-radius:6px;font-family:Arial,Helvetica,sans-serif;font-weight:bold;font-size:15px;line-height:1.25;text-align:center;box-sizing:border-box;\" aria-label=\"See the 18 x 24 x 1″ filter in MERV 8\" title=\"See the 18 x 24 x 1″ filter in MERV 8\"\u003eMERV 8\u003cspan style=\"display:block;font-weight:normal;font-size:12px;color:#ffffff;opacity:0.9;margin-top:2px;\"\u003eStandard efficiency\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width:33.3333%;vertical-align:top;padding:0;\"\u003e\u003ca href=\"\/products\/18x24x1-exact-pleated-merv-11-filters-12-pack\" style=\"display:block;background-color:#6B3FA0;color:#ffffff;text-decoration:none;padding:14px 12px;border-radius:6px;font-family:Arial,Helvetica,sans-serif;font-weight:bold;font-size:15px;line-height:1.25;text-align:center;box-sizing:border-box;\" aria-label=\"See the 18 x 24 x 1″ filter in MERV 11\" title=\"See the 18 x 24 x 1″ filter in MERV 11\"\u003eMERV 11\u003cspan style=\"display:block;font-weight:normal;font-size:12px;color:#ffffff;opacity:0.9;margin-top:2px;\"\u003eEnhanced efficiency\u003c\/span\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\n\u003ctable width=\"100%\" cellpadding=\"0\" cellspacing=\"0\" border=\"0\" style=\"border-collapse:separate;margin:24px 0 0 0;padding:0;\"\u003e\u003ctbody\u003e\u003ctr\u003e\u003ctd style=\"background-color:#1E2D7D;border-radius:8px;padding:22px 24px;vertical-align:top;\"\u003e\n\u003cp style=\"font-family:Arial,Helvetica,sans-serif;font-size:18px;font-weight:bold;color:#ffffff;margin:0 0 8px 0;line-height:1.3;\"\u003eNeed 18 x 24 x 2″ or another depth?\u003c\/p\u003e\n\u003cp style=\"font-family:Arial,Helvetica,sans-serif;font-size:14px;color:#ffffff;margin:0 0 16px 0;line-height:1.55;opacity:0.95;\"\u003eThis size is available in other depths we don't stock online — reach out and our team will quote it for you, typically same business day.\u003c\/p\u003e\n\u003ctable cellpadding=\"0\" cellspacing=\"10\" border=\"0\" style=\"border-collapse:separate;margin:0;padding:0;\"\u003e\u003ctbody\u003e\u003ctr\u003e\n\u003ctd style=\"padding:0;vertical-align:top;\"\u003e\u003ca href=\"tel:+18664698556\" style=\"display:block;background-color:#007B6B;color:#ffffff;text-decoration:none;padding:14px 22px;border-radius:6px;font-family:Arial,Helvetica,sans-serif;font-weight:bold;font-size:16px;line-height:1.2;text-align:center;box-sizing:border-box;white-space:nowrap;\"\u003eCall 866-469-8556\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"padding:0;vertical-align:top;\"\u003e\u003ca href=\"\/pages\/contact-us\" style=\"display:block;background-color:#ffffff;color:#1E2D7D;text-decoration:none;padding:14px 22px;border-radius:6px;font-family:Arial,Helvetica,sans-serif;font-weight:bold;font-size:16px;line-height:1.2;text-align:center;box-sizing:border-box;white-space:nowrap;\"\u003eContact us for a quote\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e\n\u003c\/td\u003e\u003c\/tr\u003e\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Exact Filters","offers":[{"title":"Default Title","offer_id":20126353064058,"sku":"90013-01499 18 x 24 x 1 E","price":259.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/ExactM13_1400x1400_1f8a0de6-88fc-419e-a829-73e7139488b8.jpg?v=1749250392"},{"product_id":"18x24x1-naturalaire-healthy-ultra-merv-13-filters-12-pack","title":"18x24x1 NaturalAire Healthy Ultra MERV 13 (12 Filters)","description":"\u003cp\u003eThis \u003cstrong\u003e18″ × 24″ × 1″\u003c\/strong\u003e listing (part number \u003cstrong\u003e95003.011824\u003c\/strong\u003e) of the \u003cstrong\u003eNaturalAire Healthy Ultra\u003c\/strong\u003e pleated air filter delivers \u003cstrong\u003eMERV 13\u003c\/strong\u003e filtration and ships as a case of \u003cstrong\u003e12 filters\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIndividually sealed.\u003c\/strong\u003e Every NaturalAire filter ships individually wrapped inside the case — each filter protected from dust, moisture, and shipping damage until you're ready to install it. A real quality difference from bulk-packed competitors, and it matters especially for customers reordering a case at a time.\u003c\/p\u003e\n\u003ch3\u003eWhat MERV 13 captures\u003c\/h3\u003e\n\u003cp\u003eVery fine particles including smoke, bacteria-sized particles, and virus carriers attached to larger droplets, on top of everything MERV 11 captures. Commonly specified for commercial spaces with higher indoor-air-quality requirements and for homes with wildfire smoke or air-quality concerns. Ensure your HVAC system is rated for the increased static pressure.\u003c\/p\u003e\n\u003ch3\u003eDesign and construction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e Multi-layer electret-free synthetic pleated media designed to capture fine particles including smoke and bacteria-sized particulates. Mechanical capture.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Clay-coated moisture-resistant beverage-board with wire-mesh media support.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax operating temperature:\u003c\/strong\u003e 180°F (82°C)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere it fits\u003c\/h3\u003e\n\u003cp\u003eResidential and commercial HVAC where MERV 13 is specified — including households responding to wildfire smoke, allergy\/asthma concerns, or higher indoor-air-quality requirements. Confirm your HVAC system is rated for the increased static pressure.\u003c\/p\u003e\n\u003ch3\u003eReplacement schedule\u003c\/h3\u003e\n\u003cp\u003eAt 1″ depth, plan to replace this filter \u003cstrong\u003eevery 60–90 days\u003c\/strong\u003e under typical residential or light commercial loading. High-dust environments, pet homes, wildfire smoke events, or construction-adjacent sites will shorten that window. Check the filter monthly through the first cycle to calibrate your schedule.\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-13-pleated-air-filters-12-pack\"\u003ePrimeShield Elite (MERV 13)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"AAF Flanders","offers":[{"title":"Default Title","offer_id":20292954620026,"sku":"95003-011824","price":221.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/naturalaire_merv13_12pack_dff08c38-a013-4c61-adfd-506f278402f0.jpg?v=1720568225"},{"product_id":"18x24x1-megapleat-premium-high-capacity-merv-9-pleated-filter-12-pack","title":"18x24x1 AAF Flanders MEGApleat Premium MERV 9 (12 Filters)","description":"\u003cp\u003eThis \u003cstrong\u003e18″ × 24″ × 1″\u003c\/strong\u003e listing (part number \u003cstrong\u003e148-801-635\u003c\/strong\u003e) of the \u003cstrong\u003eAAF Flanders MEGApleat Premium\u003c\/strong\u003e pleated air filter delivers \u003cstrong\u003eMERV 9\u003c\/strong\u003e filtration and ships as a case of \u003cstrong\u003e12 filters\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eMERV 9 — step up from MERV 8\u003c\/h3\u003e\n\u003cp\u003eMERV 9 captures smaller particles than MERV 8 while keeping airflow resistance in reach for standard residential and light commercial systems. A practical middle-ground when you want finer filtration without jumping to MERV 11 or 13.\u003c\/p\u003e\n\u003ch3\u003eDesign and construction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e Extended-surface premium synthetic pleated media with high dust-holding capacity. Mechanical capture — performance doesn't fade as the filter ages.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Heavy-duty moisture-resistant beverage-board with expanded-metal media support and bonded pleats to prevent air bypass.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax operating temperature:\u003c\/strong\u003e 180°F (82°C)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere it fits\u003c\/h3\u003e\n\u003cp\u003eCommercial HVAC, office buildings, schools, retail, and residential applications where a premium higher-capacity pleated filter is specified.\u003c\/p\u003e\n\u003ch3\u003eReplacement schedule\u003c\/h3\u003e\n\u003cp\u003eAt 1″ depth, plan to replace this filter \u003cstrong\u003eevery 60–90 days\u003c\/strong\u003e under typical residential or light commercial loading. High-dust environments, pet homes, wildfire smoke events, or construction-adjacent sites will shorten that window. Check the filter monthly through the first cycle to calibrate your schedule.\u003c\/p\u003e\n\u003ch3\u003eSpec sheet\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/MEGApleat_M9_prod_mark_bro_AFP_1_180E.pdf?v=1612904481%E2%80%B3%20rel=\" noopener target=\"_blank\"\u003eDownload MEGApleat Premium spec sheet (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-8-pleated-air-filters-12-pack\"\u003ePrimeShield Essential (MERV 8)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"AAF Flanders","offers":[{"title":"Default Title","offer_id":20293872517242,"sku":"148-801-635","price":267.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/products\/MEGApleat_M9_300x_0c2f7205-9ae0-48ed-84b9-00a05a86e930.png?v=1612906420"},{"product_id":"18x24x1-prepleat-merv-13-extended-surface-90013-011824-12-filters","title":"18x24x1 AAF Flanders PREpleat M13 MERV 13 (12 Filters)","description":"\u003cp\u003eThis \u003cstrong\u003e18″ × 24″ × 1″\u003c\/strong\u003e listing (part number \u003cstrong\u003e90013.011824\u003c\/strong\u003e) of the \u003cstrong\u003eAAF Flanders PREpleat M13\u003c\/strong\u003e pleated air filter delivers \u003cstrong\u003eMERV 13\u003c\/strong\u003e filtration and ships as a case of \u003cstrong\u003e12 filters\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhat MERV 13 captures\u003c\/h3\u003e\n\u003cp\u003eVery fine particles including smoke, bacteria-sized particles, and virus carriers attached to larger droplets, on top of everything MERV 11 captures. Commonly specified for commercial spaces with higher indoor-air-quality requirements and for homes with wildfire smoke or air-quality concerns. Ensure your HVAC system is rated for the increased static pressure.\u003c\/p\u003e\n\u003ch3\u003eDesign and construction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e Progressive-density bi-component synthetic fibers. Mechanical capture — performance does not fade as the filter ages.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Moisture-resistant beverage-board with diagonal support members and expanded-metal media support bonded to the downstream side.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax operating temperature:\u003c\/strong\u003e 180°F (82°C)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere it fits\u003c\/h3\u003e\n\u003cp\u003eCommercial office, light institutional, and residential HVAC where MERV 13 is specified — including facilities responding to wildfire smoke or higher indoor-air-quality requirements. Confirm the HVAC system is rated for the increased static pressure.\u003c\/p\u003e\n\u003ch3\u003eReplacement schedule\u003c\/h3\u003e\n\u003cp\u003eAt 1″ depth, plan to replace this filter \u003cstrong\u003eevery 60–90 days\u003c\/strong\u003e under typical residential or light commercial loading. High-dust environments, pet homes, wildfire smoke events, or construction-adjacent sites will shorten that window. Check the filter monthly through the first cycle to calibrate your schedule.\u003c\/p\u003e\n\u003ch3\u003eSpec sheet\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/PrePleat_M13_PDF.pdf?v=1639548528%E2%80%B3%20rel=\" noopener target=\"_blank\"\u003eDownload PREpleat M13 spec sheet (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-13-pleated-air-filters-12-pack\"\u003ePrimeShield Elite (MERV 13)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"AAF Flanders","offers":[{"title":"Default Title","offer_id":39638917152890,"sku":"90013-011824","price":197.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/90013_0212311c-db73-499e-aa36-97b9c6d0d799.png?v=1730069289"},{"product_id":"18x24x1-naturalaire-microparticle-merv-10-filters-85156-011824-12-pack","title":"18x24x1 NaturalAire Microparticle MERV 10 (12 Filters)","description":"\u003cp\u003eThis \u003cstrong\u003e18″ × 24″ × 1″\u003c\/strong\u003e listing (part number \u003cstrong\u003e85156.011824\u003c\/strong\u003e) of the \u003cstrong\u003eNaturalAire Microparticle\u003c\/strong\u003e pleated air filter delivers \u003cstrong\u003eMERV 10\u003c\/strong\u003e filtration and ships as a case of \u003cstrong\u003e12 filters\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIndividually sealed.\u003c\/strong\u003e Every NaturalAire filter ships individually wrapped inside the case — each filter protected from dust, moisture, and shipping damage until you're ready to install it. A real quality difference from bulk-packed competitors, and it matters especially for customers reordering a case at a time.\u003c\/p\u003e\n\u003ch3\u003eWhat MERV 10 captures\u003c\/h3\u003e\n\u003cp\u003eFiner household dust, most pollen, mold spores, pet dander, and larger bacteria-sized particles — a practical step up for allergy-sensitive homes, wildfire-smoke regions, and light commercial spaces. Mechanical (not electrostatic) capture means performance doesn't fade as the filter loads.\u003c\/p\u003e\n\u003ch3\u003eDesign and construction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e Microparticle pleated synthetic media with enhanced surface area. Mechanical capture — performance doesn't fade with age.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Clay-coated recyclable moisture-resistant beverage-board with wire-mesh media support.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax operating temperature:\u003c\/strong\u003e 180°F (82°C)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere it fits\u003c\/h3\u003e\n\u003cp\u003eResidential and light commercial HVAC where MERV 10 filtration is wanted for allergy sensitivity, pet dander, mold spores, or finer dust capture — without the pressure drop of MERV 13.\u003c\/p\u003e\n\u003ch3\u003eReplacement schedule\u003c\/h3\u003e\n\u003cp\u003eAt 1″ depth, plan to replace this filter \u003cstrong\u003eevery 60–90 days\u003c\/strong\u003e under typical residential or light commercial loading. High-dust environments, pet homes, wildfire smoke events, or construction-adjacent sites will shorten that window. Check the filter monthly through the first cycle to calibrate your schedule.\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-10-pleated-air-filters-12-pack\"\u003ePrimeShield Enhanced (MERV 10)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"AAF Flanders","offers":[{"title":"Default Title","offer_id":44079564030074,"sku":"85156-011824","price":141.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/4000976_A.eps_High.jpg?v=1769985106"},{"product_id":"18x24x1-perfectpleat-high-capacity-m8-173-635-011-12-filters","title":"18x24x1 AAF Flanders PerfectPleat MERV 8 High Capacity (12 Filters)","description":"\u003cp\u003eThis \u003cstrong\u003e18″ × 24″ × 1″\u003c\/strong\u003e listing (part number \u003cstrong\u003e173-635-011\u003c\/strong\u003e) of the \u003cstrong\u003eAAF Flanders PerfectPleat\u003c\/strong\u003e pleated air filter delivers \u003cstrong\u003eMERV 8\u003c\/strong\u003e filtration in the \u003cstrong\u003eHigh Capacity\u003c\/strong\u003e configuration and ships as a case of \u003cstrong\u003e12 filters\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhat makes the HC (High Capacity) different?\u003c\/h3\u003e\n\u003cp\u003eThe High Capacity variant uses a denser pleat pattern, giving it more media surface area in the same footprint. More surface area means more dust can load before reaching end-of-life pressure drop — so HC filters last longer in dusty environments, light commercial settings, and pre-filter applications where replacement frequency is a cost driver.\u003c\/p\u003e\n\u003ch3\u003eMERV 8 — standard efficiency\u003c\/h3\u003e\n\u003cp\u003eMERV 8 is the baseline for good residential and light commercial filtration: effective against household dust, lint, larger pollens, and dust-mite debris — with low pressure drop so it protects airflow and coil performance. It's the right choice when system protection and clean returns are the goal, not allergen-level filtration.\u003c\/p\u003e\n\u003ch3\u003eDesign and construction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e Self-supporting synthetic pleated media with a distinctive pleating pattern that maintains airflow and maximizes dust-holding capacity\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Moisture-resistant beverage-board with internal wire-mesh media support.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax operating temperature:\u003c\/strong\u003e 180°F (82°C)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere it fits\u003c\/h3\u003e\n\u003cp\u003eCommercial and residential HVAC where a durable, reliable MERV 8 pleated filter is specified. Common in office buildings, schools, light commercial, and residential systems.\u003c\/p\u003e\n\u003ch3\u003eReplacement schedule\u003c\/h3\u003e\n\u003cp\u003eAt 1″ depth, plan to replace this filter \u003cstrong\u003eevery 60–90 days\u003c\/strong\u003e under typical residential or light commercial loading. High-dust environments, pet homes, wildfire smoke events, or construction-adjacent sites will shorten that window. Check the filter monthly through the first cycle to calibrate your schedule.\u003c\/p\u003e\n\u003ch3\u003eSpec sheet\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.aafintl.com\/-\/media\/files\/aaf\/commercial-and-industrial\/us-products\/pleated-filters\/perfectpleat-hc-m8\/perfectpleat-hc-m8_prod_mark_sht_afp-1-210b-new.pdf\" rel=\"noopener\" target=\"_blank\"\u003eDownload PerfectPleat spec sheet (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-8-pleated-air-filters-12-pack\"\u003ePrimeShield Essential (MERV 8)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"AAF Flanders","offers":[{"title":"Default Title","offer_id":43631857369210,"sku":"173-635-011","price":120.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/PerfectPleat_M8_HC_1bcb5052-107e-4c14-9534-60f1b964ccbd.png?v=1700698867"},{"product_id":"warehouse-deal-18x24x1-naturalaire-healthy-ultra-merv-13-filters-95003-011824-7-pack","title":"WAREHOUSE DEAL 18x24x1 NaturalAire Healthy Ultra MERV 13 (7 Filters)","description":"\u003cp\u003e\u003cstrong\u003eWarehouse deal:\u003c\/strong\u003e closeout pricing on overstock inventory. Filters may show minor box wear or cosmetic imperfections from handling and storage. Each lot is inspected before listing and priced accordingly — filtration performance is unaffected. While supplies last.\u003c\/p\u003e\n\u003cp\u003eThis \u003cstrong\u003e18″ × 24″ × 1″\u003c\/strong\u003e listing (part number \u003cstrong\u003e95003.011824\u003c\/strong\u003e) of the \u003cstrong\u003eNaturalAire Healthy Ultra\u003c\/strong\u003e pleated air filter delivers \u003cstrong\u003eMERV 13\u003c\/strong\u003e filtration and ships as a case of \u003cstrong\u003e7 filters\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIndividually sealed.\u003c\/strong\u003e Every NaturalAire filter ships individually wrapped inside the case — each filter protected from dust, moisture, and shipping damage until you're ready to install it. A real quality difference from bulk-packed competitors, and it matters especially for customers reordering a case at a time.\u003c\/p\u003e\n\u003ch3\u003eWhat MERV 13 captures\u003c\/h3\u003e\n\u003cp\u003eVery fine particles including smoke, bacteria-sized particles, and virus carriers attached to larger droplets, on top of everything MERV 11 captures. Commonly specified for commercial spaces with higher indoor-air-quality requirements and for homes with wildfire smoke or air-quality concerns. Ensure your HVAC system is rated for the increased static pressure.\u003c\/p\u003e\n\u003ch3\u003eDesign and construction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e Multi-layer electret-free synthetic pleated media designed to capture fine particles including smoke and bacteria-sized particulates. Mechanical capture.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Clay-coated moisture-resistant beverage-board with wire-mesh media support.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax operating temperature:\u003c\/strong\u003e 180°F (82°C)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere it fits\u003c\/h3\u003e\n\u003cp\u003eResidential and commercial HVAC where MERV 13 is specified — including households responding to wildfire smoke, allergy\/asthma concerns, or higher indoor-air-quality requirements. Confirm your HVAC system is rated for the increased static pressure.\u003c\/p\u003e\n\u003ch3\u003eReplacement schedule\u003c\/h3\u003e\n\u003cp\u003eAt 1″ depth, plan to replace this filter \u003cstrong\u003eevery 60–90 days\u003c\/strong\u003e under typical residential or light commercial loading. High-dust environments, pet homes, wildfire smoke events, or construction-adjacent sites will shorten that window. Check the filter monthly through the first cycle to calibrate your schedule.\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-13-pleated-air-filters-12-pack\"\u003ePrimeShield Elite (MERV 13)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"AAF Flanders","offers":[{"title":"Default Title","offer_id":43812808360058,"sku":null,"price":97.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/flanders-aaf-pleated-filter-naturalaire-microparticle-merv-13-filters-12-pack-23088789324_400x_9accb08e-3124-4c69-8fd1-1e6dfeafb5eb.png?v=1713315473"},{"product_id":"18x24x12-aaf-flanders-varicel-single-header-merv-13-331-765-152","title":"18x24x12 AAF Flanders VariCel Single Header MERV 13 331-765-152 (1 Filters)","description":"\u003cp\u003eThis \u003cstrong\u003e18″ × 24″ × 12″\u003c\/strong\u003e \u003cstrong\u003eAAF Flanders VariCel\u003c\/strong\u003e filter (part number 331-765-152) delivers \u003cstrong\u003eMERV 13\u003c\/strong\u003e filtration in a rigid extended-surface construction for commercial and industrial HVAC.\u003c\/p\u003e\n\u003cp\u003eThe classic VariCel uses dual-density media and rigid construction to deliver consistent high-efficiency filtration across variable airflow, turbulent conditions, and high humidity.\u003c\/p\u003e\n\u003ch3\u003eWhen VariCel is specified\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVariable air volume (VAV) commercial HVAC\u003c\/strong\u003e — rigid construction holds pleat geometry across the full airflow range\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-humidity environments\u003c\/strong\u003e — moisture-resistant frame won't delaminate or warp\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTurbulent airflow\u003c\/strong\u003e — reinforced construction handles velocity variation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpecialized applications\u003c\/strong\u003e — paint-booth diffusion filters, cleanroom pre-filters, cannabis cultivation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDesign and construction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e Dual-density extended-surface synthetic or microfiberglass (MERV-dependent)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Rigid metal and board composite construction\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeader:\u003c\/strong\u003e Single Header\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEfficiency rating:\u003c\/strong\u003e MERV 13 per ASHRAE 52.2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat MERV 13 captures\u003c\/h3\u003e\n\u003cp\u003eVery fine particles including smoke, bacteria-sized particles, and virus carriers attached to larger droplets, on top of everything MERV 11 captures. Commonly specified for commercial spaces with higher indoor-air-quality requirements and for homes with wildfire smoke or air-quality concerns. Ensure your HVAC system is rated for the increased static pressure.\u003c\/p\u003e\n\u003ch3\u003eNeed help with sizing or cross-reference?\u003c\/h3\u003e\n\u003cp\u003eIf you're replacing an existing filter from a different manufacturer or need help matching the spec, \u003ca href=\"\/pages\/contact-us\"\u003esend us your current part number\u003c\/a\u003e and we'll confirm the exact match.\u003c\/p\u003e\n\u003ch3\u003eSpec sheet\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/VariCel_Prod_Mark_Bro_AFP_1_158.pdf?v=1660584526%E2%80%B3%20rel=\" noopener target=\"_blank\"\u003eDownload VariCel spec sheet (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-13-pleated-air-filters-12-pack\"\u003ePrimeShield Elite (MERV 13)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"AAF Flanders","offers":[{"title":"Default Title","offer_id":43885745602682,"sku":"331-765-152","price":251.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/varicel_sh_web_46da6efd-f82e-4712-98d2-272d476bae2a.png?v=1729222414"},{"product_id":"18x24x12-aaf-flanders-varicel-single-header-merv-11-331-953-152","title":"18x24x12 AAF Flanders VariCel Single Header MERV 11 331-953-152 (1 Filters)","description":"\u003cp\u003eThis \u003cstrong\u003e18″ × 24″ × 12″\u003c\/strong\u003e \u003cstrong\u003eAAF Flanders VariCel\u003c\/strong\u003e filter (part number 331-953-152) delivers \u003cstrong\u003eMERV 11\u003c\/strong\u003e filtration in a rigid extended-surface construction for commercial and industrial HVAC.\u003c\/p\u003e\n\u003cp\u003eThe classic VariCel uses dual-density media and rigid construction to deliver consistent high-efficiency filtration across variable airflow, turbulent conditions, and high humidity.\u003c\/p\u003e\n\u003ch3\u003eWhen VariCel is specified\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVariable air volume (VAV) commercial HVAC\u003c\/strong\u003e — rigid construction holds pleat geometry across the full airflow range\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-humidity environments\u003c\/strong\u003e — moisture-resistant frame won't delaminate or warp\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTurbulent airflow\u003c\/strong\u003e — reinforced construction handles velocity variation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpecialized applications\u003c\/strong\u003e — paint-booth diffusion filters, cleanroom pre-filters, cannabis cultivation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDesign and construction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e Dual-density extended-surface synthetic or microfiberglass (MERV-dependent)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Rigid metal and board composite construction\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeader:\u003c\/strong\u003e Single Header\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEfficiency rating:\u003c\/strong\u003e MERV 11 per ASHRAE 52.2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat MERV 11 captures\u003c\/h3\u003e\n\u003cp\u003eFine dust, pollen, pet dander, mold spores, smoke particles, and smaller allergens. MERV 11 is the standard recommendation for households with allergies, asthma, or pets, and is commonly specified for commercial office spaces where indoor air quality is a priority. Confirm your system can handle the slight increase in static pressure compared to MERV 8.\u003c\/p\u003e\n\u003ch3\u003eNeed help with sizing or cross-reference?\u003c\/h3\u003e\n\u003cp\u003eIf you're replacing an existing filter from a different manufacturer or need help matching the spec, \u003ca href=\"\/pages\/contact-us\"\u003esend us your current part number\u003c\/a\u003e and we'll confirm the exact match.\u003c\/p\u003e\n\u003ch3\u003eSpec sheet\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/VariCel_Prod_Mark_Bro_AFP_1_158.pdf?v=1660584526%E2%80%B3%20rel=\" noopener target=\"_blank\"\u003eDownload VariCel spec sheet (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-11-pleated-air-filters-12-pack\"\u003ePrimeShield Advanced (MERV 11)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"AAF Flanders","offers":[{"title":"Default Title","offer_id":43885747765370,"sku":"331-953-152","price":249.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/varicel_sh_web_d3d5c089-98fb-4759-9772-012646bb5a7f.png?v=1729222536"},{"product_id":"18x24x12-aaf-flanders-varicel-single-header-merv-14-331-946-152","title":"18x24x12 AAF Flanders VariCel Single Header MERV 14 331-946-152 (1 Filters)","description":"\u003cp\u003eThis \u003cstrong\u003e18″ × 24″ × 12″\u003c\/strong\u003e \u003cstrong\u003eAAF Flanders VariCel\u003c\/strong\u003e filter (part number 331-946-152) delivers \u003cstrong\u003eMERV 14\u003c\/strong\u003e filtration in a rigid extended-surface construction for commercial and industrial HVAC.\u003c\/p\u003e\n\u003cp\u003eThe classic VariCel uses dual-density media and rigid construction to deliver consistent high-efficiency filtration across variable airflow, turbulent conditions, and high humidity.\u003c\/p\u003e\n\u003ch3\u003eWhen VariCel is specified\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eVariable air volume (VAV) commercial HVAC\u003c\/strong\u003e — rigid construction holds pleat geometry across the full airflow range\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh-humidity environments\u003c\/strong\u003e — moisture-resistant frame won't delaminate or warp\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTurbulent airflow\u003c\/strong\u003e — reinforced construction handles velocity variation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSpecialized applications\u003c\/strong\u003e — paint-booth diffusion filters, cleanroom pre-filters, cannabis cultivation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eDesign and construction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e Dual-density extended-surface synthetic or microfiberglass (MERV-dependent)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Rigid metal and board composite construction\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeader:\u003c\/strong\u003e Single Header\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEfficiency rating:\u003c\/strong\u003e MERV 14 per ASHRAE 52.2\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhat MERV 14 captures\u003c\/h3\u003e\n\u003cp\u003eSub-micron particles including most smoke and bacteria-sized particles. MERV 14 is a commercial-grade filtration tier, typically used as final filter in commercial air handlers or as a high-efficiency upgrade in facilities with dedicated high-MERV systems. Standard residential HVAC equipment is rarely rated for MERV 14 static pressure.\u003c\/p\u003e\n\u003ch3\u003eNeed help with sizing or cross-reference?\u003c\/h3\u003e\n\u003cp\u003eIf you're replacing an existing filter from a different manufacturer or need help matching the spec, \u003ca href=\"\/pages\/contact-us\"\u003esend us your current part number\u003c\/a\u003e and we'll confirm the exact match.\u003c\/p\u003e\n\u003ch3\u003eSpec sheet\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/VariCel_Prod_Mark_Bro_AFP_1_158.pdf?v=1660584526%E2%80%B3%20rel=\" noopener target=\"_blank\"\u003eDownload VariCel spec sheet (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-13-pleated-air-filters-12-pack\"\u003ePrimeShield Elite (MERV 13)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"AAF Flanders","offers":[{"title":"Default Title","offer_id":43885749502074,"sku":"331-946-152","price":257.06,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/varicel_sh_web_e5d7c1aa-a1c1-4ee1-894b-1085641ffc47.png?v=1729222629"},{"product_id":"18x24x1-koch-disposable-fiberglass-panel-274-180-240-12-filters","title":"18x24x1 Koch Disposable Fiberglass Panel Filter (12 Filters)","description":"\u003cp\u003eThe \u003cstrong\u003eKoch Disposable Fiberglass Panel\u003c\/strong\u003e in 18″ × 24″ × 1″ is a straightforward spun-fiberglass panel filter — the baseline category for HVAC equipment protection. It's built to catch lint, hair, and large debris while letting the system breathe.\u003c\/p\u003e\n\u003ch3\u003eUnderstanding the MERV 1–4 rating\u003c\/h3\u003e\n\u003cp\u003eFiberglass media is rated \u003cstrong\u003eMERV 1 when clean and builds up to MERV 4\u003c\/strong\u003e as dust loads onto the fibers. That's not inconsistency — it's how spun-glass media works. A fresh filter lets the most air through while still blocking larger debris; as dust collects, the media becomes more efficient at catching finer particles. The goal of a MERV 1–4 filter isn't air quality — it's \u003cstrong\u003eequipment protection with maximum airflow\u003c\/strong\u003e. It keeps lint, hair, and large dust out of your coil and blower, which is exactly what older systems, high-airflow applications, and pre-filter duty need.\u003c\/p\u003e\n\u003ch3\u003eConstruction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e Continuous-filament spun fiberglass with resinous bonding agent for rigidity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e One-piece heavy chipboard, moisture-resistant.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eService life:\u003c\/strong\u003e 30 days under typical use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen fiberglass makes sense\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRental properties and budget-conscious residential applications\u003c\/li\u003e\n  \u003cli\u003eLegacy HVAC systems not rated for higher-MERV pressure drop\u003c\/li\u003e\n  \u003cli\u003eCommercial pre-filter duty ahead of a higher-MERV final filter\u003c\/li\u003e\n  \u003cli\u003eHigh-airflow applications where pressure drop is critical\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpec sheet\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/Disposable_Panel_Filters.pdf?v=1729024430%E2%80%B3%20rel=\" noopener target=\"_blank\"\u003eDownload Koch Fiberglass Panel spec sheet (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-1-4-fiberglass-panel-basic-air-filters-12-pack\"\u003ePrimeShield MAX Airflow (MERV 1–4)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"Koch","offers":[{"title":"Default Title","offer_id":43896640307322,"sku":"274-180-240","price":61.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/koch_disposable_panel_filter_84e17096-81ad-478f-9472-3922d2b6cea6.jpg?v=1731375991"},{"product_id":"18x24x1-koch-disposable-polyester-panel-284-180-240-12-filters","title":"18x24x1 Koch Disposable Polyester Panel Filter (12 Filters)","description":"\u003cp\u003eThe \u003cstrong\u003eKoch Disposable Polyester Panel\u003c\/strong\u003e filter in 18″ × 24″ × 1″ is a budget-friendly panel filter built for equipment protection and high airflow. Polyester media is tougher and more durable than spun fiberglass — it holds its shape better in high-airflow installations and doesn't shed fibers into the airstream.\u003c\/p\u003e\n\u003ch3\u003eEquipment protection first, filtration second\u003c\/h3\u003e\n\u003cp\u003eLike other MERV 1–4 panel filters, Koch disposable polyester is designed to protect the coil and blower from lint, hair, and large debris — not to filter fine dust or allergens. For allergen-level filtration, step up to a pleated MERV 8 or higher.\u003c\/p\u003e\n\u003ch3\u003eUnderstanding the MERV 1–4 rating\u003c\/h3\u003e\n\u003cp\u003eFiberglass media is rated \u003cstrong\u003eMERV 1 when clean and builds up to MERV 4\u003c\/strong\u003e as dust loads onto the fibers. That's not inconsistency — it's how spun-glass media works. A fresh filter lets the most air through while still blocking larger debris; as dust collects, the media becomes more efficient at catching finer particles. The goal of a MERV 1–4 filter isn't air quality — it's \u003cstrong\u003eequipment protection with maximum airflow\u003c\/strong\u003e. It keeps lint, hair, and large dust out of your coil and blower, which is exactly what older systems, high-airflow applications, and pre-filter duty need.\u003c\/p\u003e\n\u003ch3\u003eConstruction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e Polyester synthetic panel media with tackified downstream surface for improved particulate retention.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e One-piece moisture-resistant beverage-board.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eService life:\u003c\/strong\u003e 30–60 days under typical use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpec sheet\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/Disposable_Panel_Filters.pdf?v=1729024430%E2%80%B3%20rel=\" noopener target=\"_blank\"\u003eDownload Koch Polyester Panel spec sheet (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-1-4-fiberglass-panel-basic-air-filters-12-pack\"\u003ePrimeShield MAX Airflow (MERV 1–4)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"Koch","offers":[{"title":"Default Title","offer_id":43896642568314,"sku":"284-180-240","price":71.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/koch_disposable_panel_filter_3439a20f-4393-4d1f-a562-007a2ed0d9f7.jpg?v=1731376444"},{"product_id":"18x24x1-koch-multi-pleat-xl8-standard-capacity-merv-8-102-041-016-12-filters","title":"18x24x1 Koch Multi-Pleat XL8 MERV 8 Standard Capacity (12 Filters)","description":"\u003cp\u003eThis \u003cstrong\u003e18″ × 24″ × 1″\u003c\/strong\u003e listing (part number \u003cstrong\u003e102-041-016\u003c\/strong\u003e) of the \u003cstrong\u003eKoch Multi-Pleat XL8\u003c\/strong\u003e pleated air filter delivers \u003cstrong\u003eMERV 8\u003c\/strong\u003e filtration in the \u003cstrong\u003eStandard Capacity\u003c\/strong\u003e configuration and ships as a case of \u003cstrong\u003e12 filters\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhat Standard Capacity means\u003c\/h3\u003e\n\u003cp\u003eThe SC (Standard Capacity) configuration is the everyday workhorse of the Multi-Pleat XL8 line: MERV 8 filtration with lower initial resistance than the High Capacity variant. For most homes and light commercial spaces, SC balances filter cost, airflow, and dust-holding capacity.\u003c\/p\u003e\n\u003ch3\u003eMERV 8 — standard efficiency\u003c\/h3\u003e\n\u003cp\u003eMERV 8 is the baseline for good residential and light commercial filtration: effective against household dust, lint, larger pollens, and dust-mite debris — with low pressure drop so it protects airflow and coil performance. It's the right choice when system protection and clean returns are the goal, not allergen-level filtration.\u003c\/p\u003e\n\u003ch3\u003eDesign and construction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e 100% synthetic blended fibers, engineered for high initial efficiency and low pressure drop. Mechanical capture — performance doesn't fade.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Recyclable beverage-board frame with double-wall construction for high-humidity durability. Expanded galvanized-steel grid bonded to the air-exiting side maintains pleat uniformity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax operating temperature:\u003c\/strong\u003e 200°F (93°C) continuous\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere it fits\u003c\/h3\u003e\n\u003cp\u003eCommercial office buildings, schools, retail, light industrial, and residential HVAC where extended-surface pleated filtration is specified. UL 900 and ULC-S111-07 certified.\u003c\/p\u003e\n\u003ch3\u003eReplacement schedule\u003c\/h3\u003e\n\u003cp\u003eAt 1″ depth, plan to replace this filter \u003cstrong\u003eevery 60–90 days\u003c\/strong\u003e under typical residential or light commercial loading. High-dust environments, pet homes, wildfire smoke events, or construction-adjacent sites will shorten that window. Check the filter monthly through the first cycle to calibrate your schedule.\u003c\/p\u003e\n\u003ch3\u003eSpec sheet\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/Koch_Multi-Pleat_XL8_SC_2024-3.pdf?v=1731365417%E2%80%B3%20rel=\" noopener target=\"_blank\"\u003eDownload Multi-Pleat XL8 spec sheet (PDF)\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-8-pleated-air-filters-12-pack\"\u003ePrimeShield Essential (MERV 8)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"Koch","offers":[{"title":"Default Title","offer_id":43896644337786,"sku":"102-041-016","price":104.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/koch_xl8_07997fe3-b097-49f2-b5ae-01296d74159e.png?v=1731376780"},{"product_id":"18x24x1-naturalaire-odor-eliminator-filters-with-baking-soda-4-pack","title":"18x24x1 NaturalAire Odor Eliminator with Baking Soda MERV 8 (4 Filters)","description":"\u003cp\u003eThis \u003cstrong\u003e18″ × 24″ × 1″\u003c\/strong\u003e listing (part number \u003cstrong\u003e84857.011824\u003c\/strong\u003e) of the \u003cstrong\u003eNaturalAire Odor Eliminator with Baking Soda\u003c\/strong\u003e ships as a 4-pack of individually sealed \u003cstrong\u003eMERV 8\u003c\/strong\u003e pleated filters built to neutralize household odors while protecting your HVAC system.\u003c\/p\u003e\n\n\u003ch3\u003eBaking soda odor neutralization\u003c\/h3\u003e\n\u003cp\u003eThe NaturalAire Odor Eliminator uses the proven odor-absorbing power of baking soda blended into the filter media. As air passes through, the media reduces airborne particulates while the baking soda neutralizes common household odors at the source — pet smells, cooking, smoke residue, and general staleness — instead of just masking them.\u003c\/p\u003e\n\n\u003ch3\u003eMERV 8 — standard residential efficiency\u003c\/h3\u003e\n\u003cp\u003eMERV 8 is the trusted baseline for residential and light commercial filtration. It captures up to 75% of larger airborne particles including household dust and lint, dust-mite debris, pollen, pet dander, mold spores, bacteria carriers, and odor carriers — at a low pressure drop that protects airflow and coil performance.\u003c\/p\u003e\n\n\u003ch3\u003eDesign and construction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e Pleated synthetic media infused with baking soda for combined particulate and odor reduction\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Heavy-duty clay-coated beverage board frame — moisture-resistant and stays rigid through the full service life\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSupport:\u003c\/strong\u003e Wire backing on the air-leaving side maintains pleat shape and prevents collapse under load\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eService life:\u003c\/strong\u003e Up to 90 days under typical residential conditions\u003c\/li\u003e\n  \u003cli\u003e\u003cstrong\u003eUL Classified\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIndividually sealed 4-pack\u003c\/h3\u003e\n\u003cp\u003eEach filter ships in its own protective wrap inside the case. That means a clean, dust-free filter when you open it — and the rest of your supply stays sealed and shelf-ready until the next change.\u003c\/p\u003e\n\n\u003ch3\u003eWhere it fits\u003c\/h3\u003e\n\u003cp\u003e1″ residential and light commercial HVAC returns and air handlers. Especially well suited for homes with pets, smokers, frequent cooking, or anyone wanting cleaner-smelling indoor air alongside reliable particulate filtration.\u003c\/p\u003e\n\n\u003ch3\u003eReplacement schedule\u003c\/h3\u003e\n\u003cp\u003eAt 1″ depth, plan to replace every \u003cstrong\u003e60–90 days\u003c\/strong\u003e under typical loading. Pet households, wildfire smoke events, high-cooking environments, and construction-adjacent sites will shorten that window. Check the filter monthly through your first cycle to calibrate your schedule.\u003c\/p\u003e\n\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eNeed MERV 8 particle filtration without the odor neutralization? Our house brand \u003ca href=\"\/products\/merv-8-pleated-air-filters-12-pack\"\u003ePrimeShield Essential (MERV 8)\u003c\/a\u003e is the same efficiency tier at a better value across common sizes. Choose the NaturalAire Odor Eliminator when odor control is the priority.\u003c\/p\u003e\n\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e\n","brand":"AAF Flanders","offers":[{"title":"Default Title","offer_id":43897934053498,"sku":"84857-011824","price":60.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/NaturalAire_Odor_Eliminator_LF_web_c5539f0b-7910-4852-bd7e-ef2181d70891.jpg?v=1777901185"},{"product_id":"18x24x1-max-merv-9-washable-electrostatic-air-filter","title":"18x24x1 PrimeShield WashGuard Metal HVAC Air Filter — Washable \u0026 Reusable","description":"\u003cp\u003eThe \u003cstrong\u003ePrimeShield WashGuard\u003c\/strong\u003e 18″ × 24″ × 1″ metal HVAC filter is our house-brand washable and reusable filter. Rinse it out monthly, let it dry, and reinstall — no consumable to reorder, no box to throw away. Typical service life is \u003cstrong\u003e5–10+ years\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eWashGuard is produced to PrimeShield specifications by one or more partner manufacturers, delivering the same build quality as the top branded washable filters at a better price point.\u003c\/p\u003e\n\u003ch3\u003eWhen to choose WashGuard\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRental properties where tenants skip filter changes\u003c\/li\u003e\n  \u003cli\u003eCommercial facilities looking to eliminate the ongoing filter-spend line\u003c\/li\u003e\n  \u003cli\u003eHouseholds prioritizing sustainability and waste reduction\u003c\/li\u003e\n  \u003cli\u003ePre-filter duty in multi-stage systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eConstruction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Rust-resistant aluminum — holds up to repeated washing without corrosion.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e Layered metal mesh — captures lint, hair, and large debris without shedding fibers.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFiltration tier:\u003c\/strong\u003e MERV 1–4 (equipment protection and airflow, not allergen-level filtration).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCare instructions\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eRinse every 30–60 days with warm water from the downstream side\u003c\/li\u003e\n  \u003cli\u003eMild dish detergent for heavy loading\u003c\/li\u003e\n  \u003cli\u003eShake off excess water, let air-dry completely before reinstalling\u003c\/li\u003e\n  \u003cli\u003eNote the airflow-direction arrow before removing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"RTF","offers":[{"title":"Default Title","offer_id":43902482841722,"sku":"MM9182401","price":149.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/RTF_washable_1400x1400_6d33b78c-44c0-4db5-88db-1802deb1f74a.jpg?v=1759429451"},{"product_id":"18x24x1-koch-multi-pleat-xl8-merv-8-high-capacity-102-031-016-12-filters","title":"18x24x1 Koch Multi-Pleat XL8 MERV 8 High Capacity (12 Filters)","description":"\u003cp\u003eThis \u003cstrong\u003e18″ × 24″ × 1″\u003c\/strong\u003e listing (part number \u003cstrong\u003e102-031-016\u003c\/strong\u003e) of the \u003cstrong\u003eKoch Multi-Pleat XL8\u003c\/strong\u003e pleated air filter delivers \u003cstrong\u003eMERV 8\u003c\/strong\u003e filtration in the \u003cstrong\u003eHigh Capacity\u003c\/strong\u003e configuration and ships as a case of \u003cstrong\u003e12 filters\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhat makes the HC (High Capacity) different?\u003c\/h3\u003e\n\u003cp\u003eThe High Capacity variant uses a denser pleat pattern, giving it more media surface area in the same footprint. More surface area means more dust can load before reaching end-of-life pressure drop — so HC filters last longer in dusty environments, light commercial settings, and pre-filter applications where replacement frequency is a cost driver.\u003c\/p\u003e\n\u003ch3\u003eMERV 8 — standard efficiency\u003c\/h3\u003e\n\u003cp\u003eMERV 8 is the baseline for good residential and light commercial filtration: effective against household dust, lint, larger pollens, and dust-mite debris — with low pressure drop so it protects airflow and coil performance. It's the right choice when system protection and clean returns are the goal, not allergen-level filtration.\u003c\/p\u003e\n\u003ch3\u003eDesign and construction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e 100% synthetic blended fibers, engineered for high initial efficiency and low pressure drop. Mechanical capture — performance doesn't fade.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Recyclable beverage-board frame with double-wall construction for high-humidity durability. Expanded galvanized-steel grid bonded to the air-exiting side maintains pleat uniformity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax operating temperature:\u003c\/strong\u003e 200°F (93°C) continuous\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere it fits\u003c\/h3\u003e\n\u003cp\u003eCommercial office buildings, schools, retail, light industrial, and residential HVAC where extended-surface pleated filtration is specified. UL 900 and ULC-S111-07 certified.\u003c\/p\u003e\n\u003ch3\u003eReplacement schedule\u003c\/h3\u003e\n\u003cp\u003eAt 1″ depth, plan to replace this filter \u003cstrong\u003eevery 60–90 days\u003c\/strong\u003e under typical residential or light commercial loading. High-dust environments, pet homes, wildfire smoke events, or construction-adjacent sites will shorten that window. Check the filter monthly through the first cycle to calibrate your schedule.\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-8-pleated-air-filters-12-pack\"\u003ePrimeShield Essential (MERV 8)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"Koch","offers":[{"title":"Default Title","offer_id":43937901314170,"sku":"102-031-016","price":199.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/getimage2_701e3b9d-c9eb-4f7d-8c6f-9e5b560ca046.jpg?v=1742185091"},{"product_id":"18x24x1-koch-multi-pleat-xl10-merv-10-102-111-016-12-filters","title":"18x24x1 Koch Multi-Pleat XL10 MERV 10 (12 Filters)","description":"\u003cp\u003eThis \u003cstrong\u003e18″ × 24″ × 1″\u003c\/strong\u003e listing (part number \u003cstrong\u003e102-111-016\u003c\/strong\u003e) of the \u003cstrong\u003eKoch Multi-Pleat XL10\u003c\/strong\u003e pleated air filter delivers \u003cstrong\u003eMERV 10\u003c\/strong\u003e filtration and ships as a case of \u003cstrong\u003e12 filters\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhat MERV 10 captures\u003c\/h3\u003e\n\u003cp\u003eFiner household dust, most pollen, mold spores, pet dander, and larger bacteria-sized particles — a practical step up for allergy-sensitive homes, wildfire-smoke regions, and light commercial spaces. Mechanical (not electrostatic) capture means performance doesn't fade as the filter loads.\u003c\/p\u003e\n\u003ch3\u003eDesign and construction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e 100% synthetic blended fibers, engineered for high initial efficiency and low pressure drop. Mechanical capture — performance doesn't fade.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Recyclable beverage-board frame with double-wall construction for high-humidity durability. Expanded galvanized-steel grid bonded to the air-exiting side maintains pleat uniformity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax operating temperature:\u003c\/strong\u003e 200°F (93°C) continuous\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere it fits\u003c\/h3\u003e\n\u003cp\u003eCommercial office buildings, schools, retail, light industrial, and residential HVAC where extended-surface pleated filtration is specified. UL 900 and ULC-S111-07 certified.\u003c\/p\u003e\n\u003ch3\u003eReplacement schedule\u003c\/h3\u003e\n\u003cp\u003eAt 1″ depth, plan to replace this filter \u003cstrong\u003eevery 60–90 days\u003c\/strong\u003e under typical residential or light commercial loading. High-dust environments, pet homes, wildfire smoke events, or construction-adjacent sites will shorten that window. Check the filter monthly through the first cycle to calibrate your schedule.\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-10-pleated-air-filters-12-pack\"\u003ePrimeShield Enhanced (MERV 10)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"Koch","offers":[{"title":"Default Title","offer_id":43937987035258,"sku":"102-111-016","price":157.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/getimage2_56993936-b225-4ccd-a0b4-51bc535d1a75.jpg?v=1759429942"},{"product_id":"18x24x1-koch-multi-pleat-xl10-merv-10-high-capacity-102-121-016-12-filters","title":"18x24x1 Koch Multi-Pleat XL10 MERV 10 High Capacity (12 Filters)","description":"\u003cp\u003eThis \u003cstrong\u003e18″ × 24″ × 1″\u003c\/strong\u003e listing (part number \u003cstrong\u003e102-121-016\u003c\/strong\u003e) of the \u003cstrong\u003eKoch Multi-Pleat XL10\u003c\/strong\u003e pleated air filter delivers \u003cstrong\u003eMERV 10\u003c\/strong\u003e filtration in the \u003cstrong\u003eHigh Capacity\u003c\/strong\u003e configuration and ships as a case of \u003cstrong\u003e12 filters\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhat makes the HC (High Capacity) different?\u003c\/h3\u003e\n\u003cp\u003eThe High Capacity variant uses a denser pleat pattern, giving it more media surface area in the same footprint. More surface area means more dust can load before reaching end-of-life pressure drop — so HC filters last longer in dusty environments, light commercial settings, and pre-filter applications where replacement frequency is a cost driver.\u003c\/p\u003e\n\u003ch3\u003eWhat MERV 10 captures\u003c\/h3\u003e\n\u003cp\u003eFiner household dust, most pollen, mold spores, pet dander, and larger bacteria-sized particles — a practical step up for allergy-sensitive homes, wildfire-smoke regions, and light commercial spaces. Mechanical (not electrostatic) capture means performance doesn't fade as the filter loads.\u003c\/p\u003e\n\u003ch3\u003eDesign and construction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e 100% synthetic blended fibers, engineered for high initial efficiency and low pressure drop. Mechanical capture — performance doesn't fade.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Recyclable beverage-board frame with double-wall construction for high-humidity durability. Expanded galvanized-steel grid bonded to the air-exiting side maintains pleat uniformity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax operating temperature:\u003c\/strong\u003e 200°F (93°C) continuous\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere it fits\u003c\/h3\u003e\n\u003cp\u003eCommercial office buildings, schools, retail, light industrial, and residential HVAC where extended-surface pleated filtration is specified. UL 900 and ULC-S111-07 certified.\u003c\/p\u003e\n\u003ch3\u003eReplacement schedule\u003c\/h3\u003e\n\u003cp\u003eAt 1″ depth, plan to replace this filter \u003cstrong\u003eevery 60–90 days\u003c\/strong\u003e under typical residential or light commercial loading. High-dust environments, pet homes, wildfire smoke events, or construction-adjacent sites will shorten that window. Check the filter monthly through the first cycle to calibrate your schedule.\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-10-pleated-air-filters-12-pack\"\u003ePrimeShield Enhanced (MERV 10)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"Koch","offers":[{"title":"Default Title","offer_id":43938127315066,"sku":"102-121-016","price":220.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/getimage2_5269a6d6-4525-4bed-be11-528dbc2a3f9f.jpg?v=1742255836"},{"product_id":"18x24x1-koch-multi-pleat-xl11-merv-11-102-091-016-12-filters","title":"18x24x1 Koch Multi-Pleat XL11 MERV 11 (12 Filters)","description":"\u003cp\u003eThis \u003cstrong\u003e18″ × 24″ × 1″\u003c\/strong\u003e listing (part number \u003cstrong\u003e102-091-016\u003c\/strong\u003e) of the \u003cstrong\u003eKoch Multi-Pleat XL11\u003c\/strong\u003e pleated air filter delivers \u003cstrong\u003eMERV 11\u003c\/strong\u003e filtration and ships as a case of \u003cstrong\u003e12 filters\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhat MERV 11 captures\u003c\/h3\u003e\n\u003cp\u003eFine dust, pollen, pet dander, mold spores, smoke particles, and smaller allergens. MERV 11 is the standard recommendation for households with allergies, asthma, or pets, and is commonly specified for commercial office spaces where indoor air quality is a priority. Confirm your system can handle the slight increase in static pressure compared to MERV 8.\u003c\/p\u003e\n\u003ch3\u003eDesign and construction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e 100% synthetic blended fibers, engineered for high initial efficiency and low pressure drop. Mechanical capture — performance doesn't fade.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Recyclable beverage-board frame with double-wall construction for high-humidity durability. Expanded galvanized-steel grid bonded to the air-exiting side maintains pleat uniformity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax operating temperature:\u003c\/strong\u003e 200°F (93°C) continuous\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere it fits\u003c\/h3\u003e\n\u003cp\u003eCommercial office buildings, schools, retail, light industrial, and residential HVAC where extended-surface pleated filtration is specified. UL 900 and ULC-S111-07 certified.\u003c\/p\u003e\n\u003ch3\u003eReplacement schedule\u003c\/h3\u003e\n\u003cp\u003eAt 1″ depth, plan to replace this filter \u003cstrong\u003eevery 60–90 days\u003c\/strong\u003e under typical residential or light commercial loading. High-dust environments, pet homes, wildfire smoke events, or construction-adjacent sites will shorten that window. Check the filter monthly through the first cycle to calibrate your schedule.\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-11-pleated-air-filters-12-pack\"\u003ePrimeShield Advanced (MERV 11)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"Koch","offers":[{"title":"Default Title","offer_id":43938130526330,"sku":"102-091-016","price":224.04,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/getimage2_7a088510-6613-45a9-8936-12c8cf94f175.jpg?v=1742256799"},{"product_id":"18x24x1-koch-multi-pleat-xl11-merv-11-high-capacity-102-081-016-12-filters","title":"18x24x1 Koch Multi-Pleat XL11 MERV 11 High Capacity (12 Filters)","description":"\u003cp\u003eThis \u003cstrong\u003e18″ × 24″ × 1″\u003c\/strong\u003e listing (part number \u003cstrong\u003e102-081-016\u003c\/strong\u003e) of the \u003cstrong\u003eKoch Multi-Pleat XL11\u003c\/strong\u003e pleated air filter delivers \u003cstrong\u003eMERV 11\u003c\/strong\u003e filtration in the \u003cstrong\u003eHigh Capacity\u003c\/strong\u003e configuration and ships as a case of \u003cstrong\u003e12 filters\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhat makes the HC (High Capacity) different?\u003c\/h3\u003e\n\u003cp\u003eThe High Capacity variant uses a denser pleat pattern, giving it more media surface area in the same footprint. More surface area means more dust can load before reaching end-of-life pressure drop — so HC filters last longer in dusty environments, light commercial settings, and pre-filter applications where replacement frequency is a cost driver.\u003c\/p\u003e\n\u003ch3\u003eWhat MERV 11 captures\u003c\/h3\u003e\n\u003cp\u003eFine dust, pollen, pet dander, mold spores, smoke particles, and smaller allergens. MERV 11 is the standard recommendation for households with allergies, asthma, or pets, and is commonly specified for commercial office spaces where indoor air quality is a priority. Confirm your system can handle the slight increase in static pressure compared to MERV 8.\u003c\/p\u003e\n\u003ch3\u003eDesign and construction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e 100% synthetic blended fibers, engineered for high initial efficiency and low pressure drop. Mechanical capture — performance doesn't fade.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Recyclable beverage-board frame with double-wall construction for high-humidity durability. Expanded galvanized-steel grid bonded to the air-exiting side maintains pleat uniformity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax operating temperature:\u003c\/strong\u003e 200°F (93°C) continuous\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere it fits\u003c\/h3\u003e\n\u003cp\u003eCommercial office buildings, schools, retail, light industrial, and residential HVAC where extended-surface pleated filtration is specified. UL 900 and ULC-S111-07 certified.\u003c\/p\u003e\n\u003ch3\u003eReplacement schedule\u003c\/h3\u003e\n\u003cp\u003eAt 1″ depth, plan to replace this filter \u003cstrong\u003eevery 60–90 days\u003c\/strong\u003e under typical residential or light commercial loading. High-dust environments, pet homes, wildfire smoke events, or construction-adjacent sites will shorten that window. Check the filter monthly through the first cycle to calibrate your schedule.\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-11-pleated-air-filters-12-pack\"\u003ePrimeShield Advanced (MERV 11)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"Koch","offers":[{"title":"Default Title","offer_id":43938244624506,"sku":"102-081-016","price":231.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/getimage2_cc91beec-685f-4559-b3ce-aceee58a0cef.jpg?v=1742258463"},{"product_id":"18x24x1-koch-multi-pleat-green13-merv-13-high-capacity-102-101-016-12-filters","title":"18x24x1 Koch Multi-Pleat Green13 MERV 13 High Capacity (12 Filters)","description":"\u003cp\u003eThis \u003cstrong\u003e18″ × 24″ × 1″\u003c\/strong\u003e listing (part number \u003cstrong\u003e102-101-016\u003c\/strong\u003e) of the \u003cstrong\u003eKoch Multi-Pleat Green13\u003c\/strong\u003e pleated air filter delivers \u003cstrong\u003eMERV 13\u003c\/strong\u003e filtration in the \u003cstrong\u003eHigh Capacity\u003c\/strong\u003e configuration and ships as a case of \u003cstrong\u003e12 filters\u003c\/strong\u003e.\u003c\/p\u003e\n\u003ch3\u003eWhat makes the HC (High Capacity) different?\u003c\/h3\u003e\n\u003cp\u003eThe High Capacity variant uses a denser pleat pattern, giving it more media surface area in the same footprint. More surface area means more dust can load before reaching end-of-life pressure drop — so HC filters last longer in dusty environments, light commercial settings, and pre-filter applications where replacement frequency is a cost driver.\u003c\/p\u003e\n\u003ch3\u003eWhat MERV 13 captures\u003c\/h3\u003e\n\u003cp\u003eVery fine particles including smoke, bacteria-sized particles, and virus carriers attached to larger droplets, on top of everything MERV 11 captures. Commonly specified for commercial spaces with higher indoor-air-quality requirements and for homes with wildfire smoke or air-quality concerns. Ensure your HVAC system is rated for the increased static pressure.\u003c\/p\u003e\n\u003ch3\u003eDesign and construction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e 100% synthetic blended fibers, engineered for high initial efficiency and low pressure drop. Mechanical capture — performance doesn't fade.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Recyclable beverage-board frame with double-wall construction for high-humidity durability. Expanded galvanized-steel grid bonded to the air-exiting side maintains pleat uniformity.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax operating temperature:\u003c\/strong\u003e 200°F (93°C) continuous\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere it fits\u003c\/h3\u003e\n\u003cp\u003eCommercial office buildings, schools, retail, light industrial, and residential HVAC where extended-surface pleated filtration is specified. UL 900 and ULC-S111-07 certified.\u003c\/p\u003e\n\u003ch3\u003eReplacement schedule\u003c\/h3\u003e\n\u003cp\u003eAt 1″ depth, plan to replace this filter \u003cstrong\u003eevery 60–90 days\u003c\/strong\u003e under typical residential or light commercial loading. High-dust environments, pet homes, wildfire smoke events, or construction-adjacent sites will shorten that window. Check the filter monthly through the first cycle to calibrate your schedule.\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-13-pleated-air-filters-12-pack\"\u003ePrimeShield Elite (MERV 13)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"Koch","offers":[{"title":"Default Title","offer_id":43938250653818,"sku":"102-101-016","price":517.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/getimage2_0776a4f0-89b4-49d6-a3e6-7a15f88e8b05.jpg?v=1742260258"},{"product_id":"warehouse-deal-18x24x1-naturalaire-microparticle-merv-10-filters-85256-011824-6-pack","title":"WAREHOUSE DEAL 18x24x1 NaturalAire Microparticle MERV 10 (6 Filters)","description":"\u003cp\u003e\u003cstrong\u003eWarehouse deal:\u003c\/strong\u003e closeout pricing on overstock inventory. Filters may show minor box wear or cosmetic imperfections from handling and storage. Each lot is inspected before listing and priced accordingly — filtration performance is unaffected. While supplies last.\u003c\/p\u003e\n\u003cp\u003eThis \u003cstrong\u003e18″ × 24″ × 1″\u003c\/strong\u003e listing (part number \u003cstrong\u003e85256.011824\u003c\/strong\u003e) of the \u003cstrong\u003eNaturalAire Microparticle\u003c\/strong\u003e pleated air filter delivers \u003cstrong\u003eMERV 10\u003c\/strong\u003e filtration and ships as a case of \u003cstrong\u003e6 filters\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIndividually sealed.\u003c\/strong\u003e Every NaturalAire filter ships individually wrapped inside the case — each filter protected from dust, moisture, and shipping damage until you're ready to install it. A real quality difference from bulk-packed competitors, and it matters especially for customers reordering a case at a time.\u003c\/p\u003e\n\u003ch3\u003eWhat MERV 10 captures\u003c\/h3\u003e\n\u003cp\u003eFiner household dust, most pollen, mold spores, pet dander, and larger bacteria-sized particles — a practical step up for allergy-sensitive homes, wildfire-smoke regions, and light commercial spaces. Mechanical (not electrostatic) capture means performance doesn't fade as the filter loads.\u003c\/p\u003e\n\u003ch3\u003eDesign and construction\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMedia:\u003c\/strong\u003e Microparticle pleated synthetic media with enhanced surface area. Mechanical capture — performance doesn't fade with age.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFrame:\u003c\/strong\u003e Clay-coated recyclable moisture-resistant beverage-board with wire-mesh media support.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMax operating temperature:\u003c\/strong\u003e 180°F (82°C)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere it fits\u003c\/h3\u003e\n\u003cp\u003eResidential and light commercial HVAC where MERV 10 filtration is wanted for allergy sensitivity, pet dander, mold spores, or finer dust capture — without the pressure drop of MERV 13.\u003c\/p\u003e\n\u003ch3\u003eReplacement schedule\u003c\/h3\u003e\n\u003cp\u003eAt 1″ depth, plan to replace this filter \u003cstrong\u003eevery 60–90 days\u003c\/strong\u003e under typical residential or light commercial loading. High-dust environments, pet homes, wildfire smoke events, or construction-adjacent sites will shorten that window. Check the filter monthly through the first cycle to calibrate your schedule.\u003c\/p\u003e\n\u003ch3\u003eAlso worth considering\u003c\/h3\u003e\n\u003cp\u003eShopping on price? Our house brand \u003ca href=\"\/products\/merv-10-pleated-air-filters-12-pack\"\u003ePrimeShield Enhanced (MERV 10)\u003c\/a\u003e covers the same efficiency tier across common residential and commercial sizes and is usually the better value. Choose this branded option when your equipment spec sheet or facilities team calls for it specifically.\u003c\/p\u003e\n\u003ch3\u003eQuestions on fit, quantity, or a commercial quote?\u003c\/h3\u003e\n\u003cp\u003eNeed a size that isn't listed, a different pack count, or a quote for a commercial order? \u003ca href=\"\/pages\/contact-us\"\u003eGet in touch\u003c\/a\u003e — we handle facilities and commercial orders daily and can usually match or beat distributor pricing.\u003c\/p\u003e","brand":"AAF Flanders","offers":[{"title":"Default","offer_id":44040769044602,"sku":"85256-011824","price":59.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/85256_6pack_c3a523ec-12a2-4c2c-8fb6-51272e4229f7.jpg?v=1720569119"}],"url":"https:\/\/www.rememberthefilter.com\/collections\/18x24x1-furnace-and-ac-filters.oembed?page=3","provider":"RememberTheFilter.com","version":"1.0","type":"link"}