{"product_id":"b0f1v1bnwn","title":"Vent Systems 4\" Filter Replacement - Duct Filter - G4 Class Filtration Purifier System with Steel Mesh Screen - Air Vent Filters for Dust Collection\/Air Purification - Rigid\/Flexible Vent Hose","description":"\u003cdiv\u003e\n\u003ch1\u003eAbout This\u003c\/h1\u003e\n\u003cul\u003e\n\u003cli\u003ePRECISE FIT \u0026amp; DIMENSIONS – Engineered for 4\" Inch round ventilation duct filter housings. FILTER DIAMETER: 3.94\" Inch. FILTER TOTAL THICKNESS: 0.79\" Inch. Designed to fit securely inside duct filter housings, ensuring smooth airflow, effective dust capture, and reliable filtration in HVAC and air extraction systems.\u003c\/li\u003e\n\u003cli\u003eMATERIAL \u0026amp; DURABILITY – Constructed with a G4 class (EU4) filter element, protected by galvanized steel wire mesh on both sides. Built for long-lasting use, offering durability and corrosion resistance even in demanding environments.\u003c\/li\u003e\n\u003cli\u003eFUNCTIONALITY – Effectively improves indoor air quality by capturing dust, pollen, and impurities from the ventilation system. Ensures pure and fresh air circulation through round ducting setups.\u003c\/li\u003e\n\u003cli\u003eEASY INSTALLATION – Quick and hassle-free filter replacement. Simply open the side-mounted clamp to remove or insert the filter—no special tools required.\u003c\/li\u003e\n\u003cli\u003eAPPLICATION – Ideal for residential and commercial ventilation systems, including houses, kitchens, bathrooms, garages, and attics. Perfect for offices, hospitals, schools, grow tents, air purifiers, and fan attachments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"VentSystems","offers":[{"title":"Default Title","offer_id":45195170316479,"sku":"B0F1V1BNWN","price":49.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/8070\/0095\/files\/71FSl13GHBL._AC_SX679.jpg?v=1772016064","url":"https:\/\/e261wg-xj.myshopify.com\/products\/b0f1v1bnwn","provider":"AquaGuard","version":"1.0","type":"link"}