{"product_id":"18x22x1-air-filter-merv-11-superior-pet-allergy-defense-3-pack","title":"18x22x1 Air Filter MERV 11 Superior Pet \u0026 Allergy Defense - 3 Pack","description":"\u003cp\u003eOur review of the 18x22x1 MERV 11 replacement filter quickly establishes who benefits most: homeowners with pets or allergy sufferers who need reliable particle capture without throttling HVAC airflow. The pack of three filters uses \u003cstrong\u003eelectrostatic pleated media\u003c\/strong\u003e to trap a wide range of contaminants while offering a sturdier frame than basic cardboard models. Installation is straightforward, the filters are made in the USA, and they are intended to last roughly three times longer than single-layer fiberglass options when replaced on a quarterly schedule.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal compatibility:\u003c\/strong\u003e Sized for most furnaces, air conditioners and heat pumps with an actual dimension of 17.75 in x 21.75 in x 0.75 in to fit common 18x22x1 slots.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMERV 11 performance:\u003c\/strong\u003e The synthetic media captures fine dust and common allergens while maintaining airflow comparable to similar mid-grade filters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eElectrostatic pleated media:\u003c\/strong\u003e With about 14 pleats per foot the charged material traps more microscopic particles and extends useful life versus fiberglass pads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable construction:\u003c\/strong\u003e Beverage board frames and dual wire backing resist temperature extremes and handling better than basic cardboard framed filters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in the USA:\u003c\/strong\u003e Constructed from industrial-grade, recyclable materials and assembled domestically for consistent quality control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis filter is a good choice for homeowners and renters with \u003cstrong\u003epets or allergy\u003c\/strong\u003e concerns who need better-than-basic filtration without sacrificing HVAC efficiency. It fits typical 18x22x1 rated slots and is well suited to families looking for longer-lasting filters they can change every 90 days.\u003c\/p\u003e\n\u003cp\u003eIt is less appropriate for systems that require a different thickness or exact nominal dimensions; a few customers noted the actual dimensions are slightly smaller than nominal, so anyone who needs a tight, exact fit should measure their filter slot first or consider specialty sizes.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEffective particle capture from \u003cstrong\u003eMERV 11\u003c\/strong\u003e media that improves indoor air quality for allergy and pet owners.\u003c\/li\u003e\n\u003cli\u003eSturdier beverage board frame with dual wire backing increases durability and makes handling easier.\u003c\/li\u003e\n\u003cli\u003eElectrostatic pleats provide longer life and better dust-holding capacity than fiberglass alternatives.\u003c\/li\u003e\n\u003cli\u003eManufactured in the USA using recyclable materials for consistent build quality.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eActual size is 17.75 in x 21.75 in x 0.75 in which may be slightly smaller than some nominal 18x22x1 slots, so fit should be checked before purchase.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal size\u003c\/td\u003e\n\u003ctd\u003e18x22x1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActual size\u003c\/td\u003e\n\u003ctd\u003e17.75 in x 21.75 in x 0.75 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter rating\u003c\/td\u003e\n\u003ctd\u003eMERV 11 (comparable to MPR 1200 \u0026amp; FPR 7)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMedia type\u003c\/td\u003e\n\u003ctd\u003eElectrostatically charged synthetic pleated media\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePleats\u003c\/td\u003e\n\u003ctd\u003eApproximately 14 pleats per ft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame construction\u003c\/td\u003e\n\u003ctd\u003eBeverage board frame with dual wire backing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eMade in the USA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eFor pet owners and allergy-prone households seeking a balance of filtration efficiency and airflow, this 3-pack offers dependable value: \u003cstrong\u003eMERV 11\u003c\/strong\u003e capture, durable framing and longer life than fiberglass options. Verify slot dimensions before buying if a snug fit is critical, but for most standard 18x22x1 applications these filters are a practical, cost-effective upgrade.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow often should these filters be replaced?\u003c\/strong\u003e\u003cbr\u003eReplace every 90 days for typical use; replace more often in heavy dust or high-pet environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill these filters restrict airflow?\u003c\/strong\u003e\u003cbr\u003eThey are designed to capture fine particles while maintaining airflow; MERV 11 media balances filtration and system efficiency.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo they fit standard 18x22x1 slots?\u003c\/strong\u003e\u003cbr\u003eThe nominal fit is 18x22x1, but actual size is 17.75 in x 21.75 in x 0.75 in so measure your slot if an exact snug fit is required.\u003c\/p\u003e","brand":"Filterbuy","offers":[{"title":"Default Title","offer_id":48746848977115,"sku":"B09B46CCLX","price":49.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81geZ_wMD4L._AC_SL1500_e11e8584-e239-4e7d-947d-8bfa74cc44d0.jpg?v=1778775888","url":"https:\/\/gearmusthave.com\/products\/18x22x1-air-filter-merv-11-superior-pet-allergy-defense-3-pack","provider":"GearMustHave","version":"1.0","type":"link"}