{"product_id":"21-7-8x25-3-8x2-exact-filters-fiberglass","title":"21-7\/8x25-3\/8x2 Exact Filters Fiberglass MERV 1-4 (12 pack)","description":"\u003cp\u003eWhen your HVAC system calls for a 21-7\/8 x 25-3\/8 x 2″ filter and the standard aisle doesn't carry it, this Exact Filters® unit is cut to your exact 21-7\/8 x 25-3\/8 x 2″ spec — no shims, no gaps, no bypass air.\u003c\/p\u003e\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\u003cp\u003eThis filter carries a MERV 1-4 rating, which places it at the economy end of the scale. It's designed to capture larger particles — lint, fibers, dust bunnies, and pollen — that would otherwise accumulate inside your blower cabinet and on your evaporator coil. Think of it as equipment protection first, with incidental dust capture as a secondary benefit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNominal size: 21-7\/8 x 25-3\/8 x 2″\u003c\/li\u003e\n\u003cli\u003eActual dimensions: 21-7\/8 x 25-3\/8 x 1-3\/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\u003cp\u003eCustomers typically order a 21-7\/8 x 25-3\/8 x 2″ 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\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePleated construction (or fiberglass, depending on MERV tier) designed for balanced capture and airflow\u003c\/li\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\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Exact Filters","offers":[{"title":"Default Title","offer_id":44174941388922,"sku":"277-217-253","price":342.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1130\/9462\/files\/ExactM1_1268x1134_f20f247c-dab8-4a0e-9820-86e6cb7a015d.jpg?v=1749318567","url":"https:\/\/www.rememberthefilter.com\/products\/21-7-8x25-3-8x2-exact-filters-fiberglass","provider":"RememberTheFilter.com","version":"1.0","type":"link"}