{"product_id":"filter-king-35-5x40-5x1-air-filter-4-pack-merv-8-pleated","title":"Filter King 35.5x40.5x1 Air Filter 4-Pack - MERV 8 Pleated","description":"\u003cp\u003eIn this review the Filter King 35.5x40.5x1 4-pack is assessed as a straightforward, no-frills replacement filter for residential HVAC systems. The bottom line: it is a solid choice for homeowners who need a correctly sized, MERV 8 pleated filter that is fully manufactured in the United States and fits without fuss. Performance is focused on capturing everyday airborne particles while maintaining airflow, and the manufacturer notes the actual panel thickness is 0.75 in, which matters if the return grille has a tight fit.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMERV 8 rating:\u003c\/strong\u003e Provides effective capture of common household particles like dust and pet dander while preserving normal system airflow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual size transparency:\u003c\/strong\u003e The filter lists an actual size of 35.5 x 40.5 x 0.75 in so buyers can confirm fit for frames that expect precise dimensions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePleated design:\u003c\/strong\u003e The pleats increase surface area to trap more particles and extend the usable life compared with a flat panel filter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in USA:\u003c\/strong\u003e Fully manufactured domestically under EPA establishment number 103501-FL-1, which signals local production and material control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong service window:\u003c\/strong\u003e Rated to last up to 90 days with a recommended replacement interval of 30 to 90 days depending on conditions, simplifying maintenance schedules.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis filter is best for homeowners and renters with standard 1 in HVAC filter slots who want a balance of particle capture and airflow, such as families with pets or light indoor dust. The clear actual size and pleated construction make it a good pick when a precise fit and predictable performance are priorities.\u003c\/p\u003e\u003cp\u003eIt is less suitable for users who need medical-grade filtration or MERV 11+ performance for allergy or immunocompromised situations; those buyers should look for higher MERV ratings or specialized air cleaners. Also, if your system requires a full 1 in rigid frame rather than a 0.75 in panel, double-check fit before purchasing.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eGood balance of particle capture and airflow thanks to the MERV 8 pleated media.\u003c\/li\u003e\n\u003cli\u003eAccurate sizing information reduces the chance of ordering the wrong filter size.\u003c\/li\u003e\n\u003cli\u003eManufactured in the USA, which appeals to buyers wanting domestic production.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eActual thickness is 0.75 in, so it may not be ideal for systems that require a full 1 in rigid panel.\u003c\/li\u003e\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 quantity\u003c\/td\u003e\n\u003ctd\u003e4-pack\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated size\u003c\/td\u003e\n\u003ctd\u003e35.5 x 40.5 x 1 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActual size\u003c\/td\u003e\n\u003ctd\u003e35.5 x 40.5 x 0.75 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMERV rating\u003c\/td\u003e\n\u003ctd\u003eMERV 8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMade\u003c\/td\u003e\n\u003ctd\u003eMade in USA (EPA 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\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe Filter King 35.5x40.5x1 4-pack is a practical, value-minded choice for typical homes that need reliable MERV 8 filtration and correct sizing. Its pleated design and domestic manufacture make it a dependable replacement option for HVAC systems that accept a 0.75 in panel; homeowners seeking higher filtration efficiency should choose a higher MERV product.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eIs this filter a true 1 in thickness?\u003c\/strong\u003e\u003cbr\u003eThe listed actual thickness is 0.75 in, so it may sit thinner than some 1 in rigid panels; measure your frame before ordering.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eHow long will each filter last?\u003c\/strong\u003e\u003cbr\u003eFilter King recommends replacing 1 in filters every 30 to 90 days, with these pleated filters able to last up to 90 days depending on use and environment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhere are these filters made?\u003c\/strong\u003e\u003cbr\u003eThese filters are fully manufactured in the United States and include the EPA establishment number 103501-FL-1.\u003c\/p\u003e","brand":"Filter King","offers":[{"title":"Default Title","offer_id":48622002962651,"sku":"B0CPT7ZRWK","price":164.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/712j_mZk9LL._AC_SL1500.jpg?v=1778523511","url":"https:\/\/gearmusthave.com\/products\/filter-king-35-5x40-5x1-air-filter-4-pack-merv-8-pleated","provider":"GearMustHave","version":"1.0","type":"link"}