{"product_id":"k-n-engineering-ru-2990-universal-rubber-air-filter-3-5-inch-flange","title":"K\u0026N Engineering RU-2990 Universal Rubber Air Filter, 3.5-Inch Flange","description":"K\u0026amp;N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications. Regardless of the angle or offset diameter of the air intake, there is probably a K\u0026amp;N Universal air filter for your equipment. All filters are constructed with ultra-strong molded pliable rubber flanges which absorb vibration and allow for secure attachment and can also be stretched for up to 1\/16 of an inch (1.5mm) to fit in-between sizes. K\u0026amp;N universal air filters are washable and reusable.\nRegardless of the angle or offset diameter of an air intake, there is probably a K\u0026amp;N Universal air filter for your equipment. K\u0026amp;N universal air filters are washable and reusable.\nAssociated products: 99-5000 Filter Care Service Kit Aerosol\n\u003cul\u003e\n  \u003cli\u003eNO-HASSLE WARRANTY: 1-Year Limited Warranty\u003c\/li\u003e\n  \u003cli\u003eOne Year Limited Warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe K\u0026amp;N Engineering RU-2990 Universal Rubber Air Filter is designed for a broad range of automotive and equipment applications, including racing vehicles, generators, snowmobiles, tractors, and other custom air-intake systems. Its universal design accommodates air intakes with varying angles and offset diameters, making it a practical choice for specialized installations where a conventional vehicle-specific filter may not fit.\u003c\/p\u003e\u003cp\u003eBuilt with a durable, pliable rubber flange, the K\u0026amp;N RU-2990 helps absorb vibration while providing a secure connection to the intake tube. The flange can stretch slightly to accommodate in-between fitments, supporting a reliable installation across compatible applications. This washable and reusable filter can be serviced with the appropriate K\u0026amp;N Filter Care Service Kit, helping reduce replacement waste and maintain consistent airflow over the life of the filter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey specifications and technical data:\u003c\/strong\u003e Brand: K\u0026amp;N Engineering; Part Number: RU-2990; Product Type: Universal automotive air filter; Flange Diameter: 3.5 inches; Base Diameter: 5 inches; Top Diameter: 3.5 inches; Filter Height: 4 inches; Filter Construction: Molded pliable rubber flange; Serviceability: Washable and reusable. The filter is not CARB approved, and applicable installation requirements should be reviewed before use. A one-year limited warranty is included. Associated service product: K\u0026amp;N 99-5000 Filter Care Service Kit Aerosol.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's included:\u003c\/strong\u003e One K\u0026amp;N Engineering RU-2990 universal rubber air filter. Confirm intake dimensions, clearance, and mounting requirements before installation. This product is intended for compatible custom or universal applications; specific vehicle fitment data was not provided.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eUniversal Fitment: Designed for racing vehicles, generators, snowmobiles, tractors, and other custom air-intake applications.\u003c\/li\u003e\n\u003cli\u003eVibration-Resistant Flange: Pliable molded rubber helps absorb vibration and supports a secure intake connection.\u003c\/li\u003e\n\u003cli\u003eFlexible Installation: The flange can stretch slightly to accommodate compatible in-between intake sizes.\u003c\/li\u003e\n\u003cli\u003eWashable and Reusable: Serviceable design helps extend filter life when maintained with the appropriate K\u0026amp;N filter care products.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cstyle\u003etable.productattributes, .productattributes td { border-bottom: 1px solid #ddd; border-collapse: collapse; padding: 2px; text-align: left; }\u003c\/style\u003e\n\u003ctable class=\"productattributes\"\u003e\n\u003cthead\u003e\u003ctr\u003e\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\u003ctd\u003eAir Freight Prohibited: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eNot Carb Approved: true\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eCarb Acknowledgement Required: true\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eLtl Freight Required: false\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eProp 65: Y\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003ePart Type: automotive\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eEpa: N\/A\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eRegular Stock: t\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003ctd\u003eUnits Per Sku: 1\u003c\/td\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cbr\u003e","brand":"K\u0026N Engineering","offers":[{"title":"Default Title","offer_id":67595355226364,"sku":"RU-2990","price":114.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/6518\/3740\/files\/1b688546b7bf9013e4e867f499309449.jpg?v=1790567738","url":"https:\/\/diycustoms.store\/products\/k-n-engineering-ru-2990-universal-rubber-air-filter-3-5-inch-flange","provider":"diycustoms.store","version":"1.0","type":"link"}