{"product_id":"filter-king-13x21x2-air-filter-6-pack-merv-8-pleated-filters","title":"Filter King 13x21x2 Air Filter 6-Pack - MERV 8 Pleated Filters","description":"\u003cp\u003eIn this review of the Filter King 13x21x2 Air Filter 6-pack, the bottom line is simple: this set is best for homeowners who want a reliable, made-in-USA replacement that balances particle capture and airflow. The reviewer found these filters effective at trapping airborne dirt and allergens thanks to the pleated MERV 8 media, and appreciated the practical six-pack format for scheduled changes. The strongest reason to buy is consistent, affordable filtration that feels sturdy and fits standard HVAC housings when the listed size matches the unit.\u003c\/p\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMERV 8 rating:\u003c\/strong\u003e Captures a broad range of airborne particles without noticeably restricting airflow, making it suitable for typical homes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePleated design:\u003c\/strong\u003e The pleats increase surface area so the filter can trap more dirt and extend service life between changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in USA:\u003c\/strong\u003e Fully manufactured in the United States, including EPA establishment tagging for traceability and quality control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSix-pack convenience:\u003c\/strong\u003e Supplied as a 6-pack so replacements are on hand for regular 30- to 90-day changes, reducing trips to buy filters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast installation:\u003c\/strong\u003e Simple open, slide and close installation works with common HVAC filter slots for quick swaps.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLonger service interval:\u003c\/strong\u003e Rated to last up to 90 days in appropriate conditions, which can lower maintenance frequency for many households.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis filter pack is best for homeowners or renters with standard HVAC systems who need a budget-friendly, mid-efficiency filter that balances particle capture and airflow. It suits households concerned about dust, pet dander and common allergens but not requiring hospital-grade filtration.\u003c\/p\u003e\n\u003cp\u003eThose who need a higher-efficiency filter (HEPA-level or higher MERV) for severe allergy or medical needs should look elsewhere. Also verify the actual size of 13 in x 21 in x 1.75 in against your filter slot, since some customers reported mixed experience with size fit.\u003c\/p\u003e\n\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\u003eMade in the USA, which some buyers prefer for consistent build quality.\u003c\/li\u003e\n\u003cli\u003eSix-pack provides value and ensures replacements are ready for routine maintenance.\u003c\/li\u003e\n\u003cli\u003eEasy to install with a straightforward open, slide and close process.\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 1.75 in, so buyers must confirm fit; a few customers reported mixed size impressions.\u003c\/li\u003e\n\u003cli\u003eNot intended for users who require higher than MERV 8 filtration for medical-grade air cleaning.\u003c\/li\u003e\n\u003c\/ul\u003e\n\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\u003e6-pack\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\u003eNominal size\u003c\/td\u003e\n\u003ctd\u003e13 in x 21 in x 2 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActual size\u003c\/td\u003e\n\u003ctd\u003e13 in x 21 in x 1.75 in\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 to 90 days\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Filter King 13x21x2 6-pack is a practical, value-oriented choice for most homes, offering solid particle capture with minimal airflow impact and the reassurance of domestic manufacture. It is good value for scheduled maintenance and those who want dependable, easy-to-install pleated filters; just confirm the 1.75 in actual thickness against your HVAC slot before buying.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAre these filters compatible with standard 13 x 21 slots?\u003c\/strong\u003e\u003cbr\u003eCheck your unit because the actual thickness is 1.75 in even though the nominal label is 2 in; length and width are 13 in x 21 in.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow often should these filters be changed?\u003c\/strong\u003e\u003cbr\u003eThey recommend changing between 30 and 90 days depending on household conditions, with a potential runtime up to 90 days in lighter-use situations.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhere are these filters made?\u003c\/strong\u003e\u003cbr\u003eThese filters are fully manufactured in the United States and carry the listed EPA establishment number for traceability.\u003c\/p\u003e","brand":"Filter King","offers":[{"title":"Default Title","offer_id":48622027112667,"sku":"B07HKN8LFR","price":79.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71DaK2mI0eL._AC_SL1419_4bf6fa61-e3bc-47ff-95e0-5252f8fe0263.jpg?v=1778519168","url":"https:\/\/gearmusthave.com\/products\/filter-king-13x21x2-air-filter-6-pack-merv-8-pleated-filters","provider":"GearMustHave","version":"1.0","type":"link"}