{"product_id":"4into1-uni-filter-bf-1-12-x-16-x-5-8-green-65-ppi-fine-foam-sheet-hi-flow-oiled-atv-utv-filter-media","title":"4into1 Uni Filter BF-1 12\" x 16\" x 5\/8\" Green 65-PPI Fine Foam Sheet — Hi-Flow Oiled ATV\/UTV Filter Media","description":"\u003cp\u003e\u003cstrong\u003eThe 4into1 Uni Filter BF-1 is a 12\" x 16\" x 5\/8\" hi-flow, 65-PPI green polyurethane foam sheet designed to be wetted with filter oil to trap dirt, dust, and mud for superior ATV engine protection.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf you need a versatile replacement or a custom-cut foam element for off-road vehicles, the Uni Filter BF-1 supplies a high-porosity, fine-cell medium that pairs with sticky filter oil to capture contaminants while preserving airflow. Sold as an oversize sheet, it’s intended for vehicle-specific conversions or to create multiple custom filters, offering an economical way to refresh or build air filtration systems for ATVs, dirt bikes, UTVs, and other powersports machines.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this foam filter stop dust without choking the engine?\u003c\/h3\u003e\n\u003cp\u003eThe BF-1 uses open-cell polyurethane foam at 65 pores-per-inch (PPI), which balances particle retention with airflow. When saturated with quality filter oil, the foam’s cells create a tacky barrier that traps airborne grit and mud but still permits the necessary volume of intake air.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e65-PPI fine-cell foam captures small particulates while remaining breathable\u003c\/li\u003e\n  \u003cli\u003eOpen-cell structure maintains consistent airflow to reduce power loss\u003c\/li\u003e\n  \u003cli\u003eDesigned to be oiled for maximum particulate adhesion\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the physical dimensions and material details I should know?\u003c\/h3\u003e\n\u003cp\u003eThe sheet measures 12 inches by 16 inches with a 5\/8-inch thickness, giving you enough material for one or multiple custom elements depending on your application. Constructed from hi-flow green polyurethane, the foam resists degradation from normal handling and can be trimmed and shaped to match specific filter boxes or cores.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e12\" x 16\" x 5\/8\" sheet size for flexible use\u003c\/li\u003e\n  \u003cli\u003eHi-flow green polyurethane foam, 65-PPI fine cell\u003c\/li\u003e\n  \u003cli\u003eTrim-and-fit friendly for custom housings and DIY projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install, treat, and maintain this uni filter foam?\u003c\/h3\u003e\n\u003cp\u003eTrim the sheet to the shape of your filter frame or wrap it over a filter core, then evenly coat both sides with a compatible foam filter oil. After oiling, let excess drip off and reinstall; periodic cleaning and re-oiling keep filtration performance consistent.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eCut to fit your existing frame or mold into a custom element\u003c\/li\u003e\n  \u003cli\u003eApply foam filter oil evenly to both faces for effective trapping\u003c\/li\u003e\n  \u003cli\u003eClean with a detergent or foam cleaner, dry fully, and re-oil on service\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The 4into1 Uni Filter BF-1 sheet is ideal for DIY mechanics, small fabrication shops, and off-road riders who need a replaceable, customizable foam medium. It suits anyone building or repairing ATV, UTV, or dirt bike filters who wants an economical, high-flow foam that accepts oiling and can be shaped to specific vehicle requirements.\u003c\/p\u003e\n\n\u003cp\u003eFeatures at a glance:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHi-Flow green filter foam sheet\u003c\/li\u003e\n  \u003cli\u003e12 inches x 16 inches x 5\/8 inch\u003c\/li\u003e\n  \u003cli\u003e65-PPI fine cell for balanced filtration and airflow\u003c\/li\u003e\n  \u003cli\u003eUnlimited potential for use in custom applications\u003c\/li\u003e\n  \u003cli\u003eFit type: vehicle-specific when trimmed and installed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eNotes: Use compatible foam filter oils and follow manufacturer cleaning intervals to avoid over-oiling or solvent damage. This product is supplied as a raw foam sheet for conversion and is not a pre-shaped, boxed filter element; ensure proper sealing and fit when fabricating replacements.\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: Can I cut this foam to fit my ATV filter frame?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the 12×16×5\/8\" sheet is designed to be trimmed and shaped to fit vehicle-specific frames and custom housings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Do I need special oil for this foam filter?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use a compatible foam filter oil; apply evenly to both sides after cleaning and drying for best particle capture.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"4into1","offers":[{"title":"Default Title","offer_id":48084334772382,"sku":"B000ONZT5E","price":31.82,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/4into1-uni-filter-foam-sheet-top-view.jpg?v=1785850454","url":"https:\/\/northtrailauto.ca\/products\/4into1-uni-filter-bf-1-12-x-16-x-5-8-green-65-ppi-fine-foam-sheet-hi-flow-oiled-atv-utv-filter-media","provider":"North Trail Auto","version":"1.0","type":"link"}