{"product_id":"filtrete-filtro-hvac-20x20x4-19-88x19-88x4-31-2-pack-mpr-1000-merv-11-electrostatico-apto-para-alergias","title":"Filtrete Furnace \u0026 AC Air Filter 20x20x4 MPR 1000 MERV 11 — 2-Pack Electrostatic Allergen Defense","description":"\u003cp\u003e\u003cstrong\u003eFiltrete 20x20x4 MPR 1000 is a 2-pack of electrostatic HVAC filters rated MERV 11 that captures a wide range of household particles while fitting systems sized for a 4.31-inch depth.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis Filtrete premium furnace and AC filter from 3M is engineered to reduce airborne particles in living spaces using Filtrete 3-in-1 technology. With an MPR 1000 and MERV 11 efficiency, the filter combines electrostatic attraction and layered media to trap both large debris and many fine particles common in homes—pets, pollen, dust and some particulates from smoke. Each pack contains two full-size filters measuring 19.88 x 19.88 x 4.31 inches (actual dimensions) intended for use in furnaces, air conditioners and HVAC units compatible with 4-inch filter depths.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this filter improve indoor air quality?\u003c\/h3\u003e\n\u003cp\u003eThe Filtrete 3-in-1 media uses electrostatic charge plus mechanical filtration to capture particles throughout the airflow, helping reduce the number of airborne irritants circulating in your home. It is certified asthma and allergy-friendly and tested to industry standards for particle capture.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRated MERV 11 and MPR 1000 for enhanced particle capture\u003c\/li\u003e\n  \u003cli\u003eElectrostatic fibers attract fine particulates like pet dander and smoke\u003c\/li\u003e\n  \u003cli\u003eCaptures larger contaminants: lint, dust, pollen, and mold spores\u003c\/li\u003e\n  \u003cli\u003eTwo filters per pack for up to 12 months of combined service when changed yearly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this Filtrete filter fit my system that lists Honeywell-sized filters?\u003c\/h3\u003e\n\u003cp\u003eThe filter’s actual dimensions are 19.88 x 19.88 x 4.31 inches and it is designed to work with systems that accept a 4-inch (or larger) filter depth, including many Honeywell media air cleaners. Confirm your equipment specifies a 20x20x4 nominal or accepts a 4.31-inch thickness to ensure a proper fit and seal.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eActual size: 19.88 x 19.88 x 4.31 inches\u003c\/li\u003e\n  \u003cli\u003eFits systems calling for 4-inch nominal depth or larger\u003c\/li\u003e\n  \u003cli\u003eCompatible with many Honeywell media air cleaner setups\u003c\/li\u003e\n  \u003cli\u003eTwo-filter pack simplifies replacement scheduling\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow often should I replace the Filtrete 20x20x4 MPR 1000 filter?\u003c\/h3\u003e\n\u003cp\u003eFor optimal performance and airflow, replace each 4-inch filter at least once every 12 months; more frequent changes may be needed in homes with pets, heavy dust, or high pollution. Use the Filtrete Smart App to set reminders at 90-, 180- or 365-day intervals to match your household’s needs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRecommended replacement: every 12 months under normal conditions\u003c\/li\u003e\n  \u003cli\u003eChange sooner if there are pets, smokers, or increased particulate load\u003c\/li\u003e\n  \u003cli\u003eSmart App reminders available for regular maintenance\u003c\/li\u003e\n  \u003cli\u003eRegular replacement supports HVAC efficiency and lifespan\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat specific particles does this MPR 1000 filter capture?\u003c\/h3\u003e\n\u003cp\u003eThis filter is designed to trap a spectrum of particles: it collects large contaminants like lint and pollen, and reduces many small airborne particles down to the submicron range as measured by industry tests. While not a medical device, it helps lower common household allergens and airborne debris that affect comfort and cleanliness.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eLarge particles: lint, dust, pollen, and visible debris\u003c\/li\u003e\n  \u003cli\u003eCommon allergens: pet dander and mold spores\u003c\/li\u003e\n  \u003cli\u003eSmaller particles: smoke and fine particulates as evaluated by ASHRAE-standard testing\u003c\/li\u003e\n  \u003cli\u003eDesigned to balance filtration with airflow for HVAC compatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for? Homeowners and renters with a 4-inch HVAC filter slot who want stronger filtration than standard fiberglass filters—especially those with pets, seasonal allergies, or urban pollution concerns. This two-pack is convenient for households that prefer annual filter changes and value a brand recognized across North America for residential HVAC filters. Always check your system’s required dimensions and consult installation guidelines before swapping filters.\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: Is this filter the actual 20x20x4 size?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The actual dimensions are 19.88 x 19.88 x 4.31 inches; it fits systems that accept a 4-inch nominal depth.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often should I replace these Filtrete filters?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Replace at least once every 12 months under normal use; change sooner with pets, heavy dust, or poor outdoor air quality.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Filtrete","offers":[{"title":"Default Title","offer_id":54585324011859,"sku":"B09RQBH847","price":130.77,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1095\/4257\/2371\/files\/filtrete-frontal-empaque-20x20x4.jpg?v=1786668405","url":"https:\/\/findsworth.co.uk\/products\/filtrete-filtro-hvac-20x20x4-19-88x19-88x4-31-2-pack-mpr-1000-merv-11-electrostatico-apto-para-alergias","provider":"Findsworth","version":"1.0","type":"link"}