{"product_id":"filter-king-21x57-5x1-air-filter-4-pack-merv-8-hvac-pleated-a-c-furnace-filters-made-in-usa-actual-size-21-x-57-5-x-75","title":"Filter King 21x57.5x1 Air Filter | 4-PACK | MERV 8 HVAC Pleated A\/C Furnace Filters | MADE IN USA | Actual Size: 21 x 57.5 x .75\"","description":"\u003cp data-start=\"80\" data-end=\"104\"\u003e\u003cstrong data-start=\"80\" data-end=\"90\"\u003eBrand:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eFilter King\u003c\/p\u003e\n\u003cp data-start=\"107\" data-end=\"126\"\u003e\u003cstrong data-start=\"107\" data-end=\"116\"\u003eType:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003ePleated\u003c\/p\u003e\n\u003cp data-start=\"160\" data-end=\"180\"\u003e\u003cstrong data-start=\"160\" data-end=\"176\"\u003eMERV Rating:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e8\u003c\/p\u003e\n\u003cp data-start=\"183\" data-end=\"206\"\u003e\u003cstrong data-start=\"183\" data-end=\"202\"\u003eNumber in Pack:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e4\u003c\/p\u003e\n\u003cp data-start=\"209\" data-end=\"252\"\u003e\u003cstrong data-start=\"209\" data-end=\"225\"\u003eApplication:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eAir Conditioner, Furnace\u003c\/p\u003e\n\u003cp data-start=\"255\" data-end=\"313\"\u003e\u003cstrong data-start=\"255\" data-end=\"275\"\u003eItem Dimensions:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e21″ W x 57.5″ L x 0.75″ D (19.1 mm)\u003c\/p\u003e\n\u003ch2\u003eDescription\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli data-start=\"50\" data-end=\"107\"\u003e\n\u003cstrong data-start=\"50\" data-end=\"60\"\u003eFILTER\u003c\/strong\u003e: MERV 8 rated, 4 pack Air Conditioner Filter\u003c\/li\u003e\n\u003cli data-start=\"110\" data-end=\"138\"\u003e\n\u003cstrong data-start=\"110\" data-end=\"118\"\u003eSize\u003c\/strong\u003e: 21″ x 57.5″ x 1″\u003c\/li\u003e\n\u003cli data-start=\"141\" data-end=\"179\"\u003e\n\u003cstrong data-start=\"141\" data-end=\"156\"\u003eActual Size\u003c\/strong\u003e: 21″ x 57.5″ x 0.75″\u003c\/li\u003e\n\u003cli data-start=\"182\" data-end=\"325\"\u003e\n\u003cstrong data-start=\"182\" data-end=\"197\"\u003eMade in USA\u003c\/strong\u003e: Fully manufactured in the United States with high-quality materials and construction (EPA Establishment Number: 103501-FL-1)\u003c\/li\u003e\n\u003cli data-start=\"328\" data-end=\"469\"\u003e\n\u003cstrong data-start=\"328\" data-end=\"347\"\u003eMax Performance\u003c\/strong\u003e: Lasts up to 90 days; recommended replacement every 30–90 days for 1-inch filters to maintain A\/C and heater efficiency\u003c\/li\u003e\n\u003cli data-start=\"472\" data-end=\"609\"\u003e\n\u003cstrong data-start=\"472\" data-end=\"488\"\u003eCapture More\u003c\/strong\u003e: Pleated design traps more particles, extends filter life, and maintains airflow — feel the difference within 48 hours\u003c\/li\u003e\n\u003cli data-start=\"612\" data-end=\"695\"\u003e\n\u003cstrong data-start=\"612\" data-end=\"640\"\u003eFast \u0026amp; Easy Installation\u003c\/strong\u003e: Simple “Open, Slide, and Close” replacement process\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Filter King","offers":[{"title":"Default Title","offer_id":50398311219495,"sku":"FK21x57.5x1A-M8 -4","price":125.35,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0697\/4780\/2407\/files\/FK21x57.5x1A-M8-4-1.webp?v=1757329629","url":"https:\/\/hvacdirect.store\/products\/filter-king-21x57-5x1-air-filter-4-pack-merv-8-hvac-pleated-a-c-furnace-filters-made-in-usa-actual-size-21-x-57-5-x-75","provider":"WholesaleHVACDirect","version":"1.0","type":"link"}