{"product_id":"nordic-pure-20x25x5-lennox-x6673-x6675-replacement-merv-15","title":"Nordic Pure 20x25x5 Lennox X6673 X6675 Replacement MERV 15","description":"\u003cp\u003eIn this review of the Nordic Pure 20x25x5 Lennox X6673_X6675 replacement filter, the bottom line is simple: it is for homeowners and light-commercial operators who need high-efficiency particulate removal plus odor control in a 4 to 5 in filter frame. The reviewer found the single biggest reason to buy is the combination of a true \u003cstrong\u003eMERV 15\u003c\/strong\u003e capture rating and an activated carbon layer that tackles odors while still fitting common Lennox X6673 and X6675 replacement slots. Measure your existing filter and compare to the \u003cstrong\u003eactual size\u003c\/strong\u003e before buying, since nominal and actual dimensions differ on these thicker media filters.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eActual size clarity:\u003c\/strong\u003e The filter lists an actual size of 19.75 x 24.75 x 4.38 in to ensure customers can confirm fit before installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh filtration efficiency:\u003c\/strong\u003e MERV 15 performance (equivalent to MPR 2800) captures fine particles and improves indoor air quality in homes and commercial units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarbon odor control:\u003c\/strong\u003e A flat panel infused with activated charcoal reduces common household odors and VOCs alongside particulate capture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReplacement compatibility:\u003c\/strong\u003e Made specifically to replace Lennox X6673 and X6675 media air filters, so it slides into compatible housings without modification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConstruction and materials:\u003c\/strong\u003e Electrostatic synthetic media provides consistent pleated performance without relying on fiberglass or loose fibers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in the USA:\u003c\/strong\u003e Domestic manufacture may appeal to buyers prioritizing local production and supply chain clarity.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis filter suits homeowners with bottom-return style boxes and HVAC technicians replacing Lennox X6673 or X6675 media filters who want \u003cstrong\u003ebetter dust capture\u003c\/strong\u003e and odor reduction. It is also a solid choice for light-commercial settings where higher particle removal and some VOC\/odor adsorption are desired.\u003c\/p\u003e\u003cp\u003eThose who should look elsewhere include people who cannot accommodate a 4.38 in actual depth in their filter slot, or buyers who need the absolute lowest airflow restriction for sensitive equipment - a true disposable low-MERV panel may be better for minimal resistance situations.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eHigh particle capture with MERV 15 performance improves overall indoor air quality and reduces visible dust.\u003c\/li\u003e\n\u003cli\u003eActivated charcoal layer helps control odors and common household vapors.\u003c\/li\u003e\n\u003cli\u003eActual size is specified clearly so fit verification is straightforward.\u003c\/li\u003e\n\u003cli\u003eQuality construction noted by customers and made in the USA.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eActual depth differs from the nominal 5 in size, so buyers must measure their slot carefully before ordering.\u003c\/li\u003e\n\u003cli\u003eHeavier filtration can slightly reduce airflow compared with lower-MERV disposable panels in some systems.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eNordic Pure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal size\u003c\/td\u003e\n\u003ctd\u003e20 x 25 x 5 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eActual size\u003c\/td\u003e\n\u003ctd\u003e19.75 x 24.75 x 4.38 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eReplaces\u003c\/td\u003e\n\u003ctd\u003eLennox X6673, X6675\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEfficiency rating\u003c\/td\u003e\n\u003ctd\u003eMERV 15 (equivalent to MPR 2800)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecial feature\u003c\/td\u003e\n\u003ctd\u003ePleated media plus activated carbon panel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of manufacture\u003c\/td\u003e\n\u003ctd\u003eMade in the USA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe Nordic Pure 20x25x5 replacement filter is a practical choice for anyone needing high-efficiency filtration and modest odor control in systems that accept a 4+ in media filter. It offers clear sizing, strong dust capture and a carbon layer at a reasonable value, making it a sensible buy for homeowners and maintenance pros who prioritize cleaner air rather than the absolute lowest airflow restriction.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWill this filter fit my system?\u003c\/strong\u003e\u003cbr\u003eCheck the actual size of your existing filter slot and compare it to 19.75 x 24.75 x 4.38 in; the nominal 20 x 25 x 5 in label is not the true fitted dimension.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes it reduce odors?\u003c\/strong\u003e\u003cbr\u003eYes, the flat panel infused with activated charcoal is designed to attract and reduce common odors and some vapors while the pleated media captures particles.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this equivalent to MPR 2800?\u003c\/strong\u003e\u003cbr\u003eNordic Pure lists this MERV 15 offering as equivalent to MPR 2800 for particle removal performance.\u003c\/p\u003e","brand":"Nordic Pure","offers":[{"title":"Default Title","offer_id":48188807839963,"sku":"B01MZ5RWWK","price":244.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81s7eJJCeTL._AC_SL1500.jpg?v=1769575194","url":"https:\/\/gearmusthave.com\/products\/nordic-pure-20x25x5-lennox-x6673-x6675-replacement-merv-15","provider":"GearMustHave","version":"1.0","type":"link"}