{"product_id":"20x25x1-merv-8-4pack","title":"ApexPuri 20×25×1 MERV 8 Air Filter · Whole-Home 4-Pack","description":"\u003csection class=\"apex-pdp\"\u003e\n  \u003ch2\u003e20×25×1 MERV 8 — for whole-home returns.\u003c\/h2\u003e\n  \u003cp\u003e\u003cem\u003eWhole-home returns and larger HVAC systems. Common on multi-zone homes and 3+ bedroom builds. The right baseline when one big central return handles most of the house.\u003c\/em\u003e\u003c\/p\u003e\n  \u003col\u003e\n    \u003cli\u003e\n\u003cstrong\u003eHonest sizing, no rattle.\u003c\/strong\u003e Nominal 20×25×1, actual 19.50 × 24.50 × 0.75 in. Both numbers print on the label.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eReinforced beverage-board frame.\u003c\/strong\u003e ~30% thicker than typical cardboard. Won't bow under heavy whole-home airflow.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eElectrostatic pleated media.\u003c\/strong\u003e Captures dust, lint, pollen, and pet hair while keeping airflow balanced.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eBuilt to last 90 days\u003c\/strong\u003e in average American homes. Subscribe and we ship the next pack at swap time.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eArrive-Safe packaging.\u003c\/strong\u003e Double-wall corrugate. Damaged on arrival? One photo, free replacement.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMade for U.S. furnaces \u0026amp; ACs.\u003c\/strong\u003e Fits standard residential whole-home return slots without modification.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\n  \u003ch2\u003eSpecifications\u003c\/h2\u003e\n  \u003ctable\u003e\n    \u003ctr\u003e\n\u003cth\u003eNominal size\u003c\/th\u003e\n\u003ctd\u003e20 × 25 × 1 in\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eActual size (verified)\u003c\/th\u003e\n\u003ctd\u003e\u003cstrong\u003e19.50 × 24.50 × 0.75 in\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMERV rating\u003c\/th\u003e\n\u003ctd\u003eMERV 8\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eEquivalent retail tier\u003c\/th\u003e\n\u003ctd\u003e~MPR 600 · FPR 5\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMedia\u003c\/th\u003e\n\u003ctd\u003eElectrostatic pleated synthetic, 12+ pleats per filter\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eFrame\u003c\/th\u003e\n\u003ctd\u003eReinforced beverage-board, double-fold corners\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eRecommended life\u003c\/th\u003e\n\u003ctd\u003e~90 days in average dust conditions; 60 days for pet\/pollen-heavy homes\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eAirflow direction\u003c\/th\u003e\n\u003ctd\u003eArrow on frame points toward blower\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003ePack quantity\u003c\/th\u003e\n\u003ctd\u003e4 filters\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eSKU\u003c\/th\u003e\n\u003ctd\u003eAP-20-25-1-M8-4\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/table\u003e\n\n  \u003ch2\u003eQuestions about this size\u003c\/h2\u003e\n  \u003cdetails open\u003e\u003csummary\u003e\u003cstrong\u003eWill this fit a standard 20×25×1 return?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eYes. Actual frame dimensions are 19.50 × 24.50 × 0.75 in, the standard residential return slot size labeled \"20×25×1\". If your existing filter measures within ¼ in of those numbers, this filter will seat without gap.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eIs 20×25×1 a \"whole-home\" size?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eYes — 20×25×1 is one of the most common return sizes on whole-home HVAC systems in U.S. residential builds from the 2000s onward. If your home has one big central return grille (vs multiple smaller ones), it's usually this size or 20×30×1.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eHow does this compare to 16×25×1?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eSame MERV 8 capture, larger surface area. The 20×25×1 has roughly 25% more pleated media area than 16×25×1, which means slightly lower pressure drop on the same blower and the same 90-day lifespan in similar conditions.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eShould I run MERV 8 or step up?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eMERV 8 is the right baseline for most homes. Step up to MERV 11 if you have pets or allergies. MERV 13 only if HVAC tolerates the static pressure.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eHow often should I replace?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003e90 days in average homes. 60 days with pets or heavy pollen. 30 days during indoor renovation.\u003c\/p\u003e\u003c\/details\u003e\n  \u003cdetails\u003e\u003csummary\u003e\u003cstrong\u003eWhat if my filter arrives crushed?\u003c\/strong\u003e\u003c\/summary\u003e\u003cp\u003eEmail us one photo — we ship a free replacement next business day. No return label required. See \u003ca href=\"\/pages\/fit-guarantee\"\u003eFit Guarantee policy\u003c\/a\u003e.\u003c\/p\u003e\u003c\/details\u003e\n\n  \u003cp\u003e\u003ca href=\"\/pages\/support#fit\"\u003e→ Run Fit Check first\u003c\/a\u003e · \u003ca href=\"\/pages\/merv-guide\"\u003e→ Open MERV Guide\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/section\u003e","brand":"ApexPuri","offers":[{"title":"Default Title","offer_id":51852131041412,"sku":"AP-20-25-1-M8-4","price":37.96,"currency_code":"USD","in_stock":false}],"url":"https:\/\/apexpuri.com\/products\/20x25x1-merv-8-4pack","provider":"APEX PURI","version":"1.0","type":"link"}