{"product_id":"filter-king-19-88x21-5x1-air-filter-6-pack-merv-11-performance","title":"Filter King 19.88x21.5x1 Air Filter 6-Pack - MERV 11 Performance","description":"\u003cp\u003eIn this review the Filter King 19.88x21.5x1 6-pack is evaluated for homeowners and renters who want a no-fuss replacement filter that balances particle capture with airflow. The single biggest reason to buy is its \u003cstrong\u003eMERV 11\u003c\/strong\u003e rating in a ready-to-install 6-pack, which captures finer particles than basic filters while still fitting standard 1 in filter slots. The pack is fully manufactured in the United States and aims to provide up to 90 days of service life per filter under typical conditions, making it a practical option for routine HVAC maintenance.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMERV 11 rating:\u003c\/strong\u003e Provides elevated particle capture for dust, pollen and some finer irritants without a major hit to airflow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6-pack convenience:\u003c\/strong\u003e Six filters in one purchase reduces trips to buy replacements and ensures you have spares on hand.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in USA:\u003c\/strong\u003e Fully manufactured in the United States using consistent materials and construction under EPA establishment registration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePleated design:\u003c\/strong\u003e Pleats increase surface area to trap more particles and extend the service life compared with flat-panel filters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong service window:\u003c\/strong\u003e Filters are rated to last up to 90 days, giving flexibility to change between 30 and 90 days depending on home conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis pack is best for household buyers who run central A\/C or forced-air heating systems and want better-than-basic filtration without upgrading to a deep-pleat or high-resistance media. It suits families with seasonal allergies, pet owners, or anyone wanting improved indoor air quality while maintaining normal system airflow.\u003c\/p\u003e\u003cp\u003eThose who need very high-efficiency filtration (HEPA-level) for severe respiratory issues, or who have nonstandard filter thicknesses, should look elsewhere. Also check measurements carefully if your system requires an exact nominal-to-actual size match, since actual thickness is 0.75 in.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHigher particle capture from the \u003cstrong\u003eMERV 11\u003c\/strong\u003e media without significantly restricting airflow.\u003c\/li\u003e\n\u003cli\u003eConvenient 6-pack helps maintain a regular replacement schedule up to the suggested 90 days.\u003c\/li\u003e\n\u003cli\u003eMade in the United States with consistent construction and EPA establishment information.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eSome customers noted mixed impressions of build quality, with a few finding the frame less rigid than expected.\u003c\/li\u003e\n\u003cli\u003eActual dimensions (0.75 in thick) and nominal labeling can cause occasional confusion for users expecting a full 1 in thickness.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eFilter King\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePack size\u003c\/td\u003e\n\u003ctd\u003e6-pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated efficiency\u003c\/td\u003e\n\u003ctd\u003eMERV 11\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal size\u003c\/td\u003e\n\u003ctd\u003e19.88 in x 21.5 in x 1 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActual size\u003c\/td\u003e\n\u003ctd\u003e19.88 in x 21.5 in x 0.75 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of manufacture\u003c\/td\u003e\n\u003ctd\u003eMade in USA (EPA Establishment 103501-FL-1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended replacement\u003c\/td\u003e\n\u003ctd\u003eEvery 30 - 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe Filter King 19.88x21.5x1 6-pack is a sensible, value-oriented choice for typical homes that need better-than-basic filtration without major retrofit or airflow concerns. Its \u003cstrong\u003eMERV 11\u003c\/strong\u003e media, pleated design and American manufacture make it a practical option for routine HVAC maintenance, though buyers should note the actual thickness is 0.75 in and expect some variation in frame stiffness across units.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eHow long will each filter last?\u003c\/strong\u003e\u003cbr\u003eEach filter can last up to 90 days depending on home conditions; 30-90 days is the recommended replacement window.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat is the actual thickness?\u003c\/strong\u003e\u003cbr\u003eThe nominal thickness is 1 in but the actual thickness listed is 0.75 in, so confirm your slot accepts that measurement.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this made in the United States?\u003c\/strong\u003e\u003cbr\u003eYes, the pack is fully manufactured in the USA and lists EPA establishment registration.\u003c\/p\u003e","brand":"Filter King","offers":[{"title":"Default Title","offer_id":48627058311387,"sku":"B07J9Q98FN","price":91.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71Diu_hGBQL._AC_SL1342_f698105c-5067-4524-b7b7-eb4efd6d7230.jpg?v=1778444465","url":"https:\/\/gearmusthave.com\/products\/filter-king-19-88x21-5x1-air-filter-6-pack-merv-11-performance","provider":"GearMustHave","version":"1.0","type":"link"}