{"product_id":"nordic-pure-filtro-pleated-merv-12-20x20x4-19-5x19-5x3-63-pack-de-2-electrostatico-y-reforzado","title":"Nordic Pure 20x20x4 MERV 12 Pleated Air Filters 2-Pack — Actual 19.5x19.5x3.63, Electrostatic","description":"\u003cp\u003e\u003cstrong\u003eNordic Pure 20x20x4 pleated MERV 12 air filters are high-efficiency replacement furnace and AC filters (actual size 19.5\" x 19.5\" x 3.63\") sold in a convenient 2-pack.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThese filters use electrostatically charged synthetic media and a reinforced pleated design to capture fine airborne particles while supporting HVAC system airflow. Because nominal filter dimensions frequently differ from the printed size, the actual measurements are provided so you can confirm a proper fit before ordering. MERV 12 performance makes this filter suitable for reducing household dust, pollen, pet dander, and other small particulates that circulate through forced-air systems.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these filters protect my HVAC system and indoor air?\u003c\/h3\u003e\n\u003cp\u003eNordic Pure pleated filters trap a range of particles using charged synthetic fibers and deep pleat construction that increases surface area. The captured debris prevents buildup on heat exchangers and fan blades, helping systems maintain efficient airflow. A bonded metal mesh gives the pleats structural support so the filter keeps its shape across the filter’s service life.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eElectrostatic media attracts particles down to submicron sizes.\u003c\/li\u003e\n  \u003cli\u003eMERV 12 performance comparable to MPR 1500–1900.\u003c\/li\u003e\n  \u003cli\u003eMetal mesh backing reinforces pleats for durability.\u003c\/li\u003e\n  \u003cli\u003eReduces dust and large particulate buildup in ducts and coils.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat exact size is this and why does that matter?\u003c\/h3\u003e\n\u003cp\u003eThe nominal label reads 20 x 20 x 4, but the actual filter measures 19.5\" x 19.5\" x 3.63\" (19 1\/2 x 19 1\/2 x 3 5\/8). Many manufacturers print nominal sizes that are slightly larger than the real dimensions, so confirming the actual measurements avoids ordering a wrong-fit filter. If your system shows a 4 3\/8\" depth, review our 20x20x5 option instead.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNominal: 20 x 20 x 4 — Actual: 19.5 x 19.5 x 3.63 inches.\u003c\/li\u003e\n  \u003cli\u003eMeasure your current filter slot before purchasing.\u003c\/li\u003e\n  \u003cli\u003eAlternate sizes available for specific Honeywell or Lennox replacements.\u003c\/li\u003e\n  \u003cli\u003eProper fit prevents air bypass and maintains filtration effectiveness.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow often should I change a MERV 12 pleated filter?\u003c\/h3\u003e\n\u003cp\u003eService interval depends on household conditions: pets, indoor occupants, renovation dust, and local air quality all influence how quickly a filter loads. A typical recommendation is every 3 to 6 months for 4-inch pleated filters, with more frequent changes if you notice reduced airflow or visible soiling. Regular replacement helps preserve system efficiency and consistent filtration performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStandard home use: replace every 3–6 months.\u003c\/li\u003e\n  \u003cli\u003eHomes with pets or allergy sufferers: check monthly; change sooner.\u003c\/li\u003e\n  \u003cli\u003eDuring renovations or wildfire smoke events: replace more often.\u003c\/li\u003e\n  \u003cli\u003eInspect visually for darkening or airflow restriction.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and manufacturing details should I know?\u003c\/h3\u003e\n\u003cp\u003eThese Nordic Pure filters are built with electrostatically charged synthetic media and a moisture-resistant beverage-board frame, plus a bonded metal support grid. The combination aims to balance high particle capture with dimensional stability and durability in typical HVAC environments. Filters are manufactured in the USA and designed for single-use replacement.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eElectrostatic synthetic media for enhanced particle attraction.\u003c\/li\u003e\n  \u003cli\u003eMoisture-resistant beverage-board frame prevents collapse when humid.\u003c\/li\u003e\n  \u003cli\u003eBonded metal mesh protects pleats and prolongs life.\u003c\/li\u003e\n  \u003cli\u003eMade in the USA; sold as a 2-pack for convenient replacement cycles.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: homeowners and renters looking for an affordable, higher-efficiency replacement filter that fits common 20x20 filter housings (confirm the actual size before ordering). It suits households with allergies, pets, or periodic indoor dust where improved particulate capture and HVAC protection are desired. Choose this MERV 12 option when you want a step up from basic fiberglass filters while maintaining good airflow and reasonable service intervals.\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 20x20x4 filter fit my furnace?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Measure your existing filter slot; this product's actual size is 19.5\" x 19.5\" x 3.63\" and must match your furnace opening.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How small of particles does a MERV 12 filter capture?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: MERV 12 captures many particles down to roughly 0.3–1 micron, improving removal of dust, pollen, and fine particulates.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Nordic Pure","offers":[{"title":"Default Title","offer_id":54585135923539,"sku":"B004QL762O","price":169.41,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1095\/4257\/2371\/files\/nordic-pure-frontal-empaque_b210b84d-de3f-43ab-b6ac-f49668beacc4.jpg?v=1786666427","url":"https:\/\/findsworth.co.uk\/products\/nordic-pure-filtro-pleated-merv-12-20x20x4-19-5x19-5x3-63-pack-de-2-electrostatico-y-reforzado","provider":"Findsworth","version":"1.0","type":"link"}