{"product_id":"filter-king-39-5x18-5x1-air-filter-4-pack-merv-8-pleated","title":"Filter King 39.5x18.5x1 Air Filter 4-Pack - MERV 8 Pleated","description":"\u003cp\u003eIn this review of the Filter King 39.5x18.5x1 Air Filter 4-pack, the bottom line is simple: this set is for homeowners and renters who want a reliable, American-made replacement filter that balances particle capture with preserved airflow. The reviewer found the pleated \u003cstrong\u003eMERV 8\u003c\/strong\u003e media effective at removing common household particles while remaining easy to install. If you need a straightforward, periodical replacement for A\/C and furnace systems that fits the stated nominal size and lasts up to 90 days per change, this product delivers consistent performance without fuss.\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 a measurable level of filtration that captures dust, pollen and other airborne particles without significantly restricting system airflow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePleated construction:\u003c\/strong\u003e The pleated design increases surface area to trap more particles and extend the usable life compared with flat filters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in USA:\u003c\/strong\u003e Fully manufactured in the United States using materials and construction that meet EPA establishment identification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual size accuracy:\u003c\/strong\u003e Nominal 39.5 in x 18.5 in x 1 in with an actual depth of 0.75 in, which helps ensure a secure and proper fit in compatible housings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong service interval:\u003c\/strong\u003e Rated to last up to 90 days under normal conditions, making maintenance scheduling straightforward for busy households.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast installation:\u003c\/strong\u003e Open, slide and close replacement process makes swaps simple for homeowners and maintenance staff.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis Filter King 4-pack is best for homeowners, renters and property managers who need reliable, periodic replacements for standard A\/C and furnace systems sized to nominal 39.5 in x 18.5 in x 1 in. It is especially useful where balanced filtration and airflow are important, such as homes with allergies to pollen or general dust concerns but without requirements for hospital-grade filtration.\u003c\/p\u003e\n\u003cp\u003eIt is not aimed at those who require very high-efficiency filtration (MERV 11 and above) for severe allergy, asthma, or smoke conditions, nor for specialty HVAC applications that demand thicker or custom-sized filters. Check system requirements before choosing higher-efficiency options.\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\u003eConsistent fit and quality, with customers noting an excellent fit in compatible housings.\u003c\/li\u003e\n\u003cli\u003eGood particulate capture from the pleated \u003cstrong\u003eMERV 8\u003c\/strong\u003e media while maintaining airflow.\u003c\/li\u003e\n\u003cli\u003eManufactured in the USA, which may reassure buyers about sourcing and construction.\u003c\/li\u003e\n\u003cli\u003eEasy, tool-free installation that simplifies routine maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eActual thickness is 0.75 in rather than a full 1 in, so verify fit in tight slots before purchase.\u003c\/li\u003e\n\u003cli\u003eNot intended for users needing higher MERV ratings for severe respiratory conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct type\u003c\/td\u003e\n\u003ctd\u003ePleated HVAC air filter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMERV rating\u003c\/td\u003e\n\u003ctd\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal size\u003c\/td\u003e\n\u003ctd\u003e39.5 in x 18.5 in x 1 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActual size\u003c\/td\u003e\n\u003ctd\u003e39.5 in x 18.5 in x 0.75 in\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\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 change interval\u003c\/td\u003e\n\u003ctd\u003e30 - 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Filter King 39.5x18.5x1 4-pack is a practical, good-value choice for routine home HVAC maintenance when you need dependable filtration without sacrificing airflow. It is best for standard residential systems where a \u003cstrong\u003eMERV 8\u003c\/strong\u003e balance of capture and performance is desired, and the American manufacturing is an added benefit for buyers who prefer domestic products.\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\u003eChange is recommended every 30 to 90 days depending on household conditions; the filters can last up to 90 days under normal use.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill these filters fit my system?\u003c\/strong\u003e\u003cbr\u003eThey are nominally 39.5 in x 18.5 in x 1 in with an actual depth of 0.75 in, so confirm your housing accepts that actual thickness before purchasing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDo these filters reduce airflow significantly?\u003c\/strong\u003e\u003cbr\u003eThe \u003cstrong\u003eMERV 8\u003c\/strong\u003e pleated design is intended to trap particles while maintaining airflow suitable for most residential A\/C and furnace systems.\u003c\/p\u003e","brand":"Filter King","offers":[{"title":"Default Title","offer_id":48678829195483,"sku":"B0CPT9B57Y","price":71.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71OL6GkT3xL._AC_SL1500.jpg?v=1778658134","url":"https:\/\/gearmusthave.com\/products\/filter-king-39-5x18-5x1-air-filter-4-pack-merv-8-pleated","provider":"GearMustHave","version":"1.0","type":"link"}