{"product_id":"bnx-trufilter-merv-13-hvac-air-filter-20x20x1-actual-19-68x19-68x0-75-4-pack-electrostatic-media-low-airflow-resistance","title":"BNX TruFilter MERV 13 HVAC Air Filter 20x20x1 (Actual 19.68\"x19.68\"x0.75\") 4-Pack — Electrostatic Media, Low Airflow Resistance","description":"\u003cp\u003e\u003cstrong\u003eBNX TruFilter 20x20x1 is a high-efficiency MERV 13 HVAC filter designed to trap fine airborne particles while maintaining low airflow resistance.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eEngineered and assembled in Houston, TX, this four-pack of BNX TruFilter filters delivers a compact, durable replacement for 20x20x1 furnace and air conditioner filter slots (actual size 19.68\" x 19.68\" x 0.75\"). The filters use electrostatically charged media to attract and hold a wide range of particulates, and they are manufactured with a one-piece recycled cardboard frame that meets UL 900 standards. Comparable to MPR 1500–1900 and FPR 10 ratings, these filters balance filtration efficiency and airflow for everyday residential HVAC systems.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this filter improve indoor air quality?\u003c\/h3\u003e\n\u003cp\u003eThe BNX TruFilter uses MERV 13-rated media with an electrostatic charge that captures more small particles than basic fiberglass filters. It reduces airborne dust, pet dander, pollen and many fine particles that circulate through forced-air systems, contributing to a cleaner living environment over weeks of use.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCatches particles down to 3–10 microns with high efficiency.\u003c\/li\u003e\n  \u003cli\u003eElectrostatic media increases particle adhesion without heavy airflow loss.\u003c\/li\u003e\n  \u003cli\u003eDesigned to work in standard home furnaces and air handlers.\u003c\/li\u003e\n  \u003cli\u003eNoticeable reduction in visible dust within days of installation.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill it fit my HVAC or furnace filter slot?\u003c\/h3\u003e\n\u003cp\u003eThese BNX filters are nominally listed as 20x20x1 but the actual manufactured dimension is 19.68\" x 19.68\" x 0.75\", which matches the common 20x20x1 replacement size used in many residential systems. Always confirm the physical dimensions required by your unit before installing.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eActual size: 19 11\/16\" x 19 11\/16\" x 3\/4\" for accurate fit.\u003c\/li\u003e\n  \u003cli\u003eWorks in typical slots labeled 20x20x1 in furnaces and return grilles.\u003c\/li\u003e\n  \u003cli\u003eInstall with arrows indicating airflow direction toward the furnace or blower.\u003c\/li\u003e\n  \u003cli\u003eFour filters provided for staggered replacement across seasons.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow long should each filter last and how does it affect airflow?\u003c\/h3\u003e\n\u003cp\u003eService life varies with indoor particle load and runtime; many households replace filters every 1–3 months. BNX designed the media to offer strong capture rates while minimizing pressure drop, so normal system airflow should remain efficient when filters are changed at recommended intervals.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eTypical replacement interval: 1–3 months depending on usage and home conditions.\u003c\/li\u003e\n  \u003cli\u003eLow airflow resistance helps preserve HVAC efficiency and comfort.\u003c\/li\u003e\n  \u003cli\u003eElectrostatic charge boosts capture without needing very dense media.\u003c\/li\u003e\n  \u003cli\u003eReplace sooner in homes with smokers, pets, or heavy dust sources.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat materials and certifications back the product?\u003c\/h3\u003e\n\u003cp\u003eBNX TruFilter is assembled at a registered U.S. facility using a single-piece recycled cardboard frame to reduce waste. The product is classified in accordance with UL 900 and manufactured under quality controls in an EPA-registered plant.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMade in USA by BNX Converting, LLC in Houston, TX (EPA-registered facility).\u003c\/li\u003e\n  \u003cli\u003eFrame constructed from recycled cardboard using single-sided frame technology.\u003c\/li\u003e\n  \u003cli\u003eUL 900 classification confirms fire performance criteria for air filters.\u003c\/li\u003e\n  \u003cli\u003eComparable efficiency ratings: MPR 1500–1900 and FPR 10.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Homeowners and renters who want an affordable, American-made replacement filter that improves particulate capture without severely impacting airflow. It suits families with pets, allergy-prone occupants, or anyone seeking a step up from basic fiberglass filters for routine HVAC maintenance. If you need frequent high-efficiency filtration for specialized medical or industrial needs, consult a professional for system-compatible solutions.\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 truly MERV 13?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The BNX TruFilter uses MERV 13 rated electrostatic media designed to capture fine particles in the 3–10 micron range.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will it fit my 20x20x1 filter slot?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The actual size is 19.68\" x 19.68\" x 0.75\", which fits standard 20x20x1 residential filter frames.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"BNX","offers":[{"title":"Default Title","offer_id":54585704677715,"sku":"B09XC3RQ3J","price":98.46,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1095\/4257\/2371\/files\/bnx-trufilter-front-packaging.jpg?v=1786672457","url":"https:\/\/findsworth.co.uk\/products\/bnx-trufilter-merv-13-hvac-air-filter-20x20x1-actual-19-68x19-68x0-75-4-pack-electrostatic-media-low-airflow-resistance","provider":"Findsworth","version":"1.0","type":"link"}