{"product_id":"filter-king-18x18x2-air-filter-4-pack-merv-8-pleated-filters","title":"Filter King 18x18x2 Air Filter 4-Pack - MERV 8 Pleated Filters","description":"\u003cp\u003eIn this review the Filter King 18x18x2 4-pack is assessed for homes and small HVAC systems that need a balance of filtration and airflow. The bottom line: this set is best for homeowners who want a reliable, US-made pleated filter that improves indoor air quality without straining systems. The biggest reason to buy is the \u003cstrong\u003eMERV 8\u003c\/strong\u003e rating combined with a pleated design that captures more particles while maintaining airflow, and the pack of four makes routine replacement straightforward.\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 effective removal of common airborne particles like dust and pollen while still allowing normal HVAC airflow.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual dimensions:\u003c\/strong\u003e Labeled 18 in x 18 in x 2 in with an actual size of 17.5 in x 17.5 in x 1.75 in for compatibility with slightly undersized slots.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePleated construction:\u003c\/strong\u003e The pleats increase surface area to trap more particles and extend the service life between changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in USA:\u003c\/strong\u003e Fully manufactured in the United States (EPA Establishment Number: 103501-FL-1), which may matter to buyers prioritizing domestic production.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong service interval:\u003c\/strong\u003e Rated for up to 90 days of use depending on conditions, with a recommended change cycle of 30-90 days to protect equipment longevity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy installation:\u003c\/strong\u003e Simple open, slide and close design makes replacement fast and tool-free for a typical homeowner.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis filter is a good fit for homeowners and renters with central A\/C or furnace systems who want better dust and allergen control than basic fiberglass pads provide. It suits people who change filters seasonally and appreciate a 4-pack that limits shopping trips and keeps fresh filters on hand.\u003c\/p\u003e\n\u003cp\u003eIt is less appropriate for users needing high-efficiency medical-grade filtration or for systems that require exact box dimensions larger than the stated actual size; anyone who needs a higher MERV level should look elsewhere for more aggressive particle capture.\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 balance of filtration and airflow thanks to the \u003cstrong\u003eMERV 8\u003c\/strong\u003e pleated media.\u003c\/li\u003e\n\u003cli\u003eManufactured in the USA with documented EPA establishment number for traceability.\u003c\/li\u003e\n\u003cli\u003ePack of four supplies several months of replacements and offers solid value for money.\u003c\/li\u003e\n\u003cli\u003eEasy to install with a straightforward open, slide and close method.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eActual measurements (17.5 in x 17.5 in x 1.75 in) are slightly smaller than nominal size, which caused mixed fit feedback from some users.\u003c\/li\u003e\n\u003cli\u003eNot suitable when higher MERV ratings are required for tighter particle control.\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 Size\u003c\/td\u003e\n\u003ctd\u003e18 in x 18 in x 2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActual Size\u003c\/td\u003e\n\u003ctd\u003e17.5 in x 17.5 in x 1.75 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\u003eCountry of Manufacture\u003c\/td\u003e\n\u003ctd\u003eUnited States (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\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Filter King 18x18x2 4-pack is a practical choice for most residential HVAC systems that need reliable dust and pollen reduction without restricting airflow. It delivers good value with American manufacturing and easy installation, though buyers should confirm the actual dimensions fit their filter slot and consider a higher MERV if they need finer filtration.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these filters true to size?\u003c\/strong\u003e\u003cbr\u003eThe nominal size is 18 in x 18 in x 2 in but the actual dimensions are 17.5 in x 17.5 in x 1.75 in, so measure your slot before ordering.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow often should they be changed?\u003c\/strong\u003e\u003cbr\u003eFilter King recommends changing filters every 30 to 90 days depending on use and indoor conditions, with some customers finding up to 90 days acceptable.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill they affect HVAC airflow?\u003c\/strong\u003e\u003cbr\u003eWith a MERV 8 rating the pleated design balances filtration and airflow so they should not noticeably impede most residential systems when installed correctly.\u003c\/p\u003e","brand":"Filter King","offers":[{"title":"Default Title","offer_id":48746958323931,"sku":"B07HJGDBD2","price":41.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71DaK2mI0eL._AC_SL1419_7cf8357e-04e1-42e9-851b-745d9a9f875f.jpg?v=1778858630","url":"https:\/\/gearmusthave.com\/products\/filter-king-18x18x2-air-filter-4-pack-merv-8-pleated-filters","provider":"GearMustHave","version":"1.0","type":"link"}