{"product_id":"12x20x4-varicel-2-high-capacity-no-header-merv-11-3184626-610-4-filters","title":"12x20x4 AAF Flanders VariCel 2+ High Capacity No Header MERV 11 3184626-610 (4 Filters)","description":"\u003cp\u003eThis \u003cstrong\u003e12″ × 20″ × 4″\u003c\/strong\u003e \u003cstrong\u003eAAF Flanders VariCel 2+\u003c\/strong\u003e filter (part number 3184626-610) 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 VariCel 2+ uses AAF's \u003cstrong\u003eImpress® Technology\u003c\/strong\u003e for low initial resistance, superior mechanical strength, and energy-efficient operation in VAV and turbulent-airflow systems.\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 No 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_2_Plus_AFP-1-824.pdf?v=1751562002%E2%80%B3%20rel=\" noopener target=\"_blank\"\u003eDownload VariCel 2+ 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":44019611730042,"sku":"3184626-610","price":452.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/VariCel_2_plus_HC_noheader_67711306-4cb3-44df-adaf-ae6e61474ece.jpg?v=1751562581","url":"https:\/\/www.rememberthefilter.com\/products\/12x20x4-varicel-2-high-capacity-no-header-merv-11-3184626-610-4-filters","provider":"RememberTheFilter.com","version":"1.0","type":"link"}