{"product_id":"filter-king-23x29x1-air-filter-4-pack-merv-8-pleated-usa-made","title":"Filter King 23x29x1 Air Filter 4-Pack - MERV 8 Pleated USA Made","description":"\u003cp\u003eOur review of the Filter King 23x29x1 4-pack finds it best suited for homeowners and renters who want a straightforward, effective replacement furnace or A\/C filter without premium cost. The single biggest reason to buy is consistent particle capture from a MERV 8 pleated design that noticeably reduces dust in living spaces within days. Installation is simple and the pack of four supports routine 30 to 90 day replacement cycles, making this a practical choice for those who value easy maintenance and reliable filtration.\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 solid balance of particle capture and maintained airflow for typical residential HVAC systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePleated construction:\u003c\/strong\u003e The pleats increase surface area so the filter traps more dust and airborne particles and lasts longer between changes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-pack supply:\u003c\/strong\u003e Four filters in one purchase supports regular replacement every 30 to 90 days without frequent reordering.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in USA:\u003c\/strong\u003e Fully manufactured in the United States under EPA establishment number 103501-FL-1 for domestic quality control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual sizing listed:\u003c\/strong\u003e The nominal size 23 in x 29 in x 1 in is clarified with an actual thickness of 0.75 in to help ensure a proper fit in many furnaces and A\/C return slots.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast installation:\u003c\/strong\u003e The open, slide and close design makes replacing the filter a quick task that usually takes only a minute or two.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe Filter King 23x29x1 4-pack is ideal for homeowners, landlords, and renters who need a cost-effective, easily replaced filter for typical residential HVAC systems and who want noticeable dust reduction without sacrificing airflow. It suits people who prefer to keep a supply of filters on hand and follow the recommended 30 to 90 day replacement cadence.\u003c\/p\u003e\n\u003cp\u003eThose who need hospital-grade filtration, very high allergen capture, or custom nonstandard thicknesses should look elsewhere, as a MERV 8 pleated 1 in (actual 0.75 in) filter is aimed at general home air quality and not specialized medical or industrial filtration.\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 homes due to the \u003cstrong\u003eMERV 8\u003c\/strong\u003e pleated design.\u003c\/li\u003e\n\u003cli\u003eConvenient 4-pack offers value and supports scheduled replacements.\u003c\/li\u003e\n\u003cli\u003eEasy to install with a simple open, slide and close process.\u003c\/li\u003e\n\u003cli\u003eMade in the USA with documented EPA establishment number for quality assurance.\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 of 0.75 in can lead to mixed fit experiences in some return slots that expect a full 1 in thickness.\u003c\/li\u003e\n\u003cli\u003eNot intended for environments that require higher MERV ratings for specialized allergen or pathogen 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\u003eNominal size\u003c\/td\u003e\n\u003ctd\u003e23 in x 29 in x 1 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActual size\u003c\/td\u003e\n\u003ctd\u003e23 in x 29 in 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\u003ePack quantity\u003c\/td\u003e\n\u003ctd\u003e4 filters\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 No. 103501-FL-1)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended replacement\u003c\/td\u003e\n\u003ctd\u003eEvery 30 to 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 23x29x1 4-pack is a practical, value-oriented choice for most household HVAC systems, offering dependable dust reduction and easy, quick installation. Buyers who want routine filtration that balances capture and airflow will find good value here, while those needing very high-grade filtration should consider higher MERV options.\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\u003eThey are sold as 23 in x 29 in x 1 in with an actual thickness of 0.75 in, so most systems accept them but check your slot clearance before purchasing.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow often should I change them?\u003c\/strong\u003e\u003cbr\u003eFilter King recommends changing these 1 in filters every 30 to 90 days depending on household conditions; the pleated design can last toward the upper end for lower-dust environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWill they reduce household dust?\u003c\/strong\u003e\u003cbr\u003eYes, the pleated MERV 8 design captures common airborne particles and many users notice reduced dust in 48 hours to a few days.\u003c\/p\u003e","brand":"Filter King","offers":[{"title":"Default Title","offer_id":48613924339931,"sku":"B0CPTD9968","price":80.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/71HHt4z6qtL._AC_SL1500.jpg?v=1778504426","url":"https:\/\/gearmusthave.com\/products\/filter-king-23x29x1-air-filter-4-pack-merv-8-pleated-usa-made","provider":"GearMustHave","version":"1.0","type":"link"}