{"product_id":"k-n-high-flow-universal-clamp-on-air-filter-ru-3020-5-flange-9-height-washable-high-flow-performance","title":"K\u0026N High-Flow Universal Clamp-On Air Filter RU-3020 — 5\" Flange, 9\" Height, Washable High-Flow Performance","description":"\u003cp\u003e\u003cstrong\u003eThe K\u0026amp;N High-Flow Original Universal Clamp-On Air Filter (RU-3020) is a washable, reusable round performance filter with a 5-inch flange and 9-inch height designed to increase airflow and last the life of your vehicle.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis clamp-on filter from K\u0026amp;N combines multi-layer cotton gauze media and a pliable molded rubber flange to deliver higher airflow without frequent replacement. Built for a wide range of applications, the RU-3020 fits many custom and aftermarket installations where a round, clamp-on connection is required. It arrives pre-oiled and ready to use, and K\u0026amp;N’s washable design reduces long-term cost and waste compared with disposable paper filters.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this filter affect engine performance?\u003c\/h3\u003e\n\u003cp\u003eThe K\u0026amp;N high-flow media is engineered to let more air pass into the intake while still trapping contaminants. Increased airflow can support better throttle response and consistent power delivery under normal conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eState-of-the-art multi-layer cotton gauze media for improved breathing\u003c\/li\u003e\n  \u003cli\u003ePre-oiled filter media ready to install for immediate use\u003c\/li\u003e\n  \u003cli\u003eDesigned to increase horsepower and acceleration potential\u003c\/li\u003e\n  \u003cli\u003eDurable construction to maintain performance over time\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the key dimensions and fit details I should know?\u003c\/h3\u003e\n\u003cp\u003eThis RU-3020 model is a round clamp-on style with a 5-inch flange diameter, a 1-inch flange length, and a total height of 9 inches—suitable for many universal intake setups. The pliable rubber flange helps absorb vibration and creates a secure connection to clamps or piping.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFlange diameter: 5 inches (fits standard 5\" clamp connections)\u003c\/li\u003e\n  \u003cli\u003eFlange length: 1 inch for secure sealing\u003c\/li\u003e\n  \u003cli\u003eFilter height: 9 inches for increased filter area\u003c\/li\u003e\n  \u003cli\u003eRound shape, model RU-3020, universal clamp-on design\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I maintain and clean the filter?\u003c\/h3\u003e\n\u003cp\u003eK\u0026amp;N filters are washable and intended for long-term reuse; under typical highway driving they only need cleaning approximately every 75,000 miles (about once every five years for average use). Cleaning uses K\u0026amp;N’s recommended filter cleaner and re-oiling process to restore filtration and performance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eWash with K\u0026amp;N cleaner, rinse, let air dry completely\u003c\/li\u003e\n  \u003cli\u003eRe-oil evenly using K\u0026amp;N filter oil to restore trapping efficiency\u003c\/li\u003e\n  \u003cli\u003eTypical service interval: up to 75,000 miles under normal highway driving\u003c\/li\u003e\n  \u003cli\u003eReusable design reduces disposable filter waste\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eIs the RU-3020 durable and backed by warranty?\u003c\/h3\u003e\n\u003cp\u003eThe RU-3020 is manufactured with rugged materials and modern construction to provide long-lasting use; it’s also proudly made in the USA. K\u0026amp;N includes a 1-year limited warranty to cover manufacturing defects.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDurable molded rubber flange resists vibration and tearing\u003c\/li\u003e\n  \u003cli\u003eMulti-layer cotton gauze treated with adhesive for longevity\u003c\/li\u003e\n  \u003cli\u003eMade in USA with performance-focused quality control\u003c\/li\u003e\n  \u003cli\u003e1-year limited warranty for peace of mind\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho this is for: The K\u0026amp;N RU-3020 fits vehicle owners, custom builders, tuners, and hobbyists who need a universal round clamp-on filter with a 5-inch flange and 9-inch height. It’s ideal for projects where a reusable, high-flow intake solution is preferred over disposable filters—especially when long-term cost savings, reduced waste, and straightforward maintenance are priorities.\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 filter fit my intake tube?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The RU-3020 has a 5-inch flange diameter and 1-inch flange length; confirm your intake diameter matches 5 inches for a secure clamp-on fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often must I replace the filter?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: This K\u0026amp;N filter is washable and reusable; under normal highway driving it typically needs cleaning about every 75,000 miles, not replacement.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"K\u0026N","offers":[{"title":"Default Title","offer_id":48083950207134,"sku":"B00062YQWA","price":87.78,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/kn-ru-3020-front-profile.jpg?v=1785840975","url":"https:\/\/northtrailauto.ca\/products\/k-n-high-flow-universal-clamp-on-air-filter-ru-3020-5-flange-9-height-washable-high-flow-performance","provider":"North Trail Auto","version":"1.0","type":"link"}