{"product_id":"nordic-pure-filtro-merv-12-20x25x5-real-19-7-8-x-24-7-8-x-4-3-8-2-unidades-marco-resistente-y-electrostatico","title":"Nordic Pure MERV 12 HVAC Replacement Air Filters 20x25x5 (Actual 19.88x24.88x4.38) 2-Pack — Electrostatic Pleated Filters","description":"\u003cstrong\u003eNordic Pure 20x25x5 MERV 12 replacement filters are high-efficiency pleated furnace filters sized at an actual 19 7\/8 x 24 7\/8 x 4 3\/8 inches and sold as a 2-pack to improve HVAC performance and indoor air quality.\u003c\/strong\u003e\n\n\u003cp\u003eThese Nordic Pure pleated filters are built with electrostatically charged synthetic media and a sturdy beverage-board frame backed by a bonded metal mesh, designed to capture fine particles while resisting moisture and microbial growth. Rated MERV 12 (comparable to MPR 1500–1900), they are intended as direct replacements for many Honeywell\/Lennox housings that accept a nominal \"20x25x5\" filter but actually require the smaller actual dimensions. Because many furnace filters use nominal sizing, we emphasize measuring your current filter or slot before ordering to ensure a snug, effective fit.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these filters differ from the printed nominal size?\u003c\/h3\u003e\n\u003cp\u003eMany furnace filters list a nominal size that is slightly larger than the filter’s true measurements. Nordic Pure labels this model as 20x25x5 nominal, while the actual dimensions are 19 7\/8 x 24 7\/8 x 4 3\/8 inches—equivalent to many filters sold as 20x25x4 by other manufacturers. Measuring your existing filter or the housing prevents fit issues.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNominal size: 20 x 25 x 5; actual: 19.88 x 24.88 x 4.38 inches.\u003c\/li\u003e\n\u003cli\u003eWorks as a replacement where the real depth is about 4 3\/8 inches.\u003c\/li\u003e\n\u003cli\u003eCheck your filter slot or old filter before purchasing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat level of particle filtration can I expect from MERV 12?\u003c\/h3\u003e\n\u003cp\u003eMERV 12 filters provide high-efficiency filtration suitable for trapping many fine airborne particles, including dust, pollen, smoke fragments, and some biological particulates down to about 0.3 microns. While they capture a wide range of contaminants and help reduce particulates circulating in your home, they do not sterilize air or claim to eliminate pathogens.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComparable performance to MPR 1500–1900 ratings.\u003c\/li\u003e\n\u003cli\u003eElectrostatic media attracts and holds small particles effectively.\u003c\/li\u003e\n\u003cli\u003eMedia resists bacterial and mold growth without added chemicals.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow often should I change these furnace filters and why?\u003c\/h3\u003e\n\u003cp\u003eFilter lifespan depends on local indoor and outdoor conditions, household activity, and whether renovations or heavy dust are present. For most homes, replacing the filter every 3–6 months balances clean airflow and cost-effectiveness; homes with pets, smokers, or allergy sufferers may require more frequent changes.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTypical recommendation: change every 3–6 months.\u003c\/li\u003e\n\u003cli\u003eReplace sooner during construction, heavy pollen seasons, or high indoor dust.\u003c\/li\u003e\n\u003cli\u003eRegular changes keep HVAC systems running efficiently and reduce maintenance needs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the construction and material benefits of this Nordic Pure filter?\u003c\/h3\u003e\n\u003cp\u003eNordic Pure uses an electrostatically charged synthetic filter media combined with a moisture-resistant beverage-board frame and a bonded metal support grid. This construction helps the pleats maintain shape under airflow, reduces the chance of sagging, and avoids adding biocidal chemicals to the media while limiting microbial growth.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHeavy-duty, moisture-resistant beverage board frame for durability.\u003c\/li\u003e\n\u003cli\u003eMetal mesh bonded to pleats adds structural support.\u003c\/li\u003e\n\u003cli\u003eElectrostatic synthetic media traps fine particles without chemical additives.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this product for? Homeowners or building managers seeking a high-efficiency replacement filter that fits systems labeled 20x25x5 but requiring slightly smaller actual dimensions will appreciate this Nordic Pure MERV 12 two-pack. It’s especially suitable for those who want improved particulate capture (allergy-conscious households, pet owners, or anyone wanting cleaner indoor air) while maintaining HVAC efficiency. Confirm your filter slot measurements before ordering to ensure correct fit and peak performance.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this filter fit my system if my old filter says 20x25x4?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Possibly—measure your old filter or slot. Nordic Pure’s actual size is 19 7\/8 x 24 7\/8 x 4 3\/8 inches, which often matches filters labeled 20x25x4.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace a MERV 12 Nordic Pure filter?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replace every 3–6 months under normal conditions; change sooner with pets, smoke, heavy dust, or during renovations.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Nordic Pure","offers":[{"title":"Default Title","offer_id":54585014124883,"sku":"B004LURI4Q","price":184.67,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1095\/4257\/2371\/files\/nordic-pure-frontal-empaque_86cba540-72a6-4147-8b44-532e6b6143db.jpg?v=1786665079","url":"https:\/\/findsworth.co.uk\/products\/nordic-pure-filtro-merv-12-20x25x5-real-19-7-8-x-24-7-8-x-4-3-8-2-unidades-marco-resistente-y-electrostatico","provider":"Findsworth","version":"1.0","type":"link"}