{"product_id":"11-1-4x18-3-4x4-exact-filters-pleated-merv-10-6-pack","title":"11-1\/4x18-3\/4x4 Exact Filters Pleated MERV 10 (6 pack)","description":"\u003cp\u003eExact Filters® produces this 11-1\/4 x 18-3\/4 x 4″ filter to your measurements, so instead of trimming, taping, or forcing a \"close enough\" size into place, you drop in a filter that fits your 11-1\/4 x 18-3\/4 x 4″ slot the first time.\u003c\/p\u003e\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\u003cp\u003eA MERV 10 rating is the most common mid-efficiency specification and the one most HVAC manufacturers print in their owner's manuals as the recommended minimum for standard systems. It captures everyday dust, pollen, pet dander, and mold spores while keeping airflow resistance moderate — a sensible balance for buildings without specific air-quality concerns.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNominal size: 11-1\/4 x 18-3\/4 x 4″\u003c\/li\u003e\n\u003cli\u003eActual dimensions: 11-1\/4 x 18-3\/4 x 3-3\/4″\u003c\/li\u003e\n\u003cli\u003eEfficiency rating: MERV 10\u003c\/li\u003e\n\u003cli\u003eQuantity: 6 filters per carton\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eCommon applications for a 11-1\/4 x 18-3\/4 x 4″ 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\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\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\u003eSuitable for forced-air furnaces, central AC, heat pumps, and packaged HVAC systems\u003c\/li\u003e\n\u003cli\u003eSold as a 6-pack so you have a full year of replacements on hand\u003c\/li\u003e\n\u003cli\u003eCardboard frame with reinforced media for structural stability during handling and installation\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Exact Filters","offers":[{"title":"Default Title","offer_id":44182264414330,"sku":"80055-04299 11 1\/4 x 18 3\/4 x 4 E","price":331.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/primemerv10_2_f92ac2a0-e345-4331-bbd7-8143fbeeca33.webp?v=1785169097","url":"https:\/\/www.rememberthefilter.com\/products\/11-1-4x18-3-4x4-exact-filters-pleated-merv-10-6-pack","provider":"RememberTheFilter.com","version":"1.0","type":"link"}