{"product_id":"filter-king-5x9-5x1-air-filter-4-pack-merv-8-replacement-filters","title":"Filter King 5x9.5x1 Air Filter 4-Pack - MERV 8 Replacement Filters","description":"\u003cp\u003eIn this review the Filter King 5x9.5x1 Air Filter 4-pack is evaluated for small HVAC openings where a compact, dependable replacement is needed. The bottom line: this MERV 8 pleated filter is best for homeowners and renters with one-inch return slots who want a balance of particle capture and airflow without frequent clogging; the biggest reason to buy is the pleated MERV 8 media that traps more dust and airborne particles while remaining easy to install.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMERV 8 rating:\u003c\/strong\u003e Provides improved capture of dust, pollen and pet dander compared with basic fiberglass filters while maintaining good airflow for most residential systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePleated construction:\u003c\/strong\u003e The pleats increase surface area so the filter traps more particles and extends time between changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual compact size:\u003c\/strong\u003e Labeled 5in x 9.5in x 1in with an actual depth of 0.75in, the filter fits narrow return slots that require a slightly thinner media.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in USA:\u003c\/strong\u003e Fully manufactured domestically under EPA establishment number 103501-FL-1, signaling consistent materials and construction quality.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong service interval:\u003c\/strong\u003e Rated to last up to 90 days depending on use, offering a reasonable balance of maintenance and value for typical homes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy installation:\u003c\/strong\u003e The open, slide and close design makes replacement a quick, tool-free task for most users.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis 4-pack is aimed at homeowners, renters and small shop owners who need replacement filters for compact 1in return slots and want better particulate control than basic fiberglass provides. It suits people who value a US-made product and a pleated design that can make a noticeable difference in dust levels within a few days.\u003c\/p\u003e\n\u003cp\u003eThose with systems that require thicker filters or who need HEPA-level filtration for severe allergies should look elsewhere, since this MERV 8 pleated 0.75in media is intended as a mid-level residential solution rather than a medical-grade option.\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\u003eGood particle capture for everyday household dust, pollen and pet dander as reported by users.\u003c\/li\u003e\n\u003cli\u003eCompact actual dimensions that fit tight return slots and deliver the promised size compatibility.\u003c\/li\u003e\n\u003cli\u003eDurable pleated construction and US manufacturing that contribute to consistent quality and value.\u003c\/li\u003e\n\u003cli\u003eLong potential service life up to 90 days reduces the frequency of replacements when conditions allow.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eActual depth of 0.75in may cause fit surprises if installers expect a full 1in thickness.\u003c\/li\u003e\n\u003cli\u003eSome users reported occasional installation difficulty despite the simple slide-in design.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\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 quantity\u003c\/td\u003e\n\u003ctd\u003e4 filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated efficiency\u003c\/td\u003e\n\u003ctd\u003eMERV 8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLabel size\u003c\/td\u003e\n\u003ctd\u003e5in x 9.5in x 1in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActual size\u003c\/td\u003e\n\u003ctd\u003e5in x 9.5in x 0.75in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMade in\u003c\/td\u003e\n\u003ctd\u003eUnited States (EPA Establishment 103501-FL-1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended change interval\u003c\/td\u003e\n\u003ctd\u003e30 - 90 days for 1in filters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Filter King 5x9.5x1 MERV 8 4-pack is a practical, well-made choice for anyone with narrow return slots who wants improved dust control without sacrificing airflow. Its pleated media and US manufacturing make it a good value for routine residential use, though buyers needing thicker or medical-grade filtration should consider alternatives.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow often should these filters be changed?\u003c\/strong\u003e\u003cbr\u003eFilter King recommends changing 1in filters every 30 to 90 days depending on household conditions and usage.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill the filter fit my return slot if it says 1in?\u003c\/strong\u003e\u003cbr\u003eThe labeled size is 1in but the actual depth is 0.75in, so measure your slot first to ensure a proper fit.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo these provide HEPA-level filtration?\u003c\/strong\u003e\u003cbr\u003eNo, these are MERV 8 pleated filters designed for general household particle control, not HEPA or medical-grade filtration.\u003c\/p\u003e","brand":"Filter King","offers":[{"title":"Default Title","offer_id":48235552112859,"sku":"B0CPT9MDPZ","price":57.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71CvKUw0-lL._AC_SL1500.jpg?v=1770841170","url":"https:\/\/gearmusthave.com\/products\/filter-king-5x9-5x1-air-filter-4-pack-merv-8-replacement-filters","provider":"GearMustHave","version":"1.0","type":"link"}