{"product_id":"k-n-high-flow-universal-clamp-on-air-filter-ru-2800-5-flange-7-height-washable-reusable-high-flow-performance","title":"K\u0026N High-Flow Universal Clamp-On Air Filter RU-2800, 5\" Flange, 7\" Height — Washable, Reusable High-Flow Performance","description":"\u003cp\u003e\u003cstrong\u003eK\u0026amp;N RU-2800 is a washable, reusable high-flow universal clamp-on air filter designed to increase airflow and deliver lasting filtration for a wide range of engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eBuilt for hobbyists, mechanics, and performance-minded drivers, this tapered cone-style clamp-on filter pairs K\u0026amp;N’s multilayer cotton gauze media with a pliable rubber flange so it fits many aftermarket intakes and custom setups. The RU-2800 has a 5-inch flange diameter, 1-inch flange length and 7-inch overall height, offering a compact yet efficient solution when a durable, long-life air filter is needed for speciality applications.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this filter improve engine breathing and performance?\u003c\/h3\u003e\n\u003cp\u003eThe RU-2800 uses stacked cotton gauze layers treated with a tackifying agent to capture contaminants while allowing increased airflow compared with typical disposable paper elements. Improved airflow can support better throttle response and a more efficient induction charge without sacrificing particle protection.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMulti-layer cotton gauze media for both flow and filtration\u003c\/li\u003e\n  \u003cli\u003ePre-oiled at the factory for immediate use\u003c\/li\u003e\n  \u003cli\u003eEngineered to increase horsepower potential and acceleration response\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this clamp-on filter fit my application and how easy is installation?\u003c\/h3\u003e\n\u003cp\u003eThe universal clamp-on design fits many aftermarket air intakes, ducting and custom projects where a 5-inch flange is compatible. A flexible, molded rubber flange absorbs vibration and seals securely, making installation fast with a simple clamp or hose connection.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e5-inch flange diameter and 1-inch flange length for common coupler sizes\u003c\/li\u003e\n  \u003cli\u003eTapered round shape (cone-style) to suit compact spaces\u003c\/li\u003e\n  \u003cli\u003eWorks with standard hose clamps and intake collars for quick mounting\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow durable and maintainable is the K\u0026amp;N RU-2800?\u003c\/h3\u003e\n\u003cp\u003eConstructed from robust materials and manufactured to K\u0026amp;N standards, this filter is designed to be serviceable rather than disposable. With routine cleaning and re-oiling per K\u0026amp;N guidelines it can provide years of use, reducing the need for frequent replacements and lowering waste.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDurable molded rubber flange to resist tearing and vibration\u003c\/li\u003e\n  \u003cli\u003eRecommended cleaning interval around 75,000 miles under normal highway driving\u003c\/li\u003e\n  \u003cli\u003eWashable, reusable media reduces landfill waste and long-term cost\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I expect in terms of warranty, origin, and support?\u003c\/h3\u003e\n\u003cp\u003eK\u0026amp;N backs its air filters with a one-year limited warranty and manufactures the RU-2800 in the USA. Technical resources and replacement parts are available through K\u0026amp;N’s support channels if you need guidance on fitment or maintenance.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e1-year limited warranty included\u003c\/li\u003e\n  \u003cli\u003eProudly made in the USA for consistent quality\u003c\/li\u003e\n  \u003cli\u003eExtensive online resources for cleaning kits and step-by-step care\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The K\u0026amp;N RU-2800 is ideal for do-it-yourself installers, engine tuners, and custom-build enthusiasts who need a compact, high-flow clamp-on filter with a 5-inch inlet. It suits projects that demand a reusable, long-lasting inlet filter—such as cold-air intakes, short ram setups, small engines, and vintage vehicles—where a tapered cone and flexible flange simplify fitment and maintenance.\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: What flange size does the RU-2800 use?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The RU-2800 has a 5-inch flange diameter and a 1-inch flange length for common clamp-on connections.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How often does this filter need cleaning?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Under normal highway driving, cleaning is typically recommended about every 75,000 miles (roughly five years).\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"K\u0026N","offers":[{"title":"Default Title","offer_id":48084100219038,"sku":"B00029WZWA","price":87.78,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/k_n-ru-2800-front-profile.jpg?v=1785846415","url":"https:\/\/northtrailauto.ca\/products\/k-n-high-flow-universal-clamp-on-air-filter-ru-2800-5-flange-7-height-washable-reusable-high-flow-performance","provider":"North Trail Auto","version":"1.0","type":"link"}