{"product_id":"k-n-engineering-ru-3700-universal-round-tapered-air-filter","title":"K\u0026N Engineering RU-3700 Universal Round Tapered Air Filter","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-3700 Universal Round Tapered Air Filter is designed for a broad range of automotive, powersports, equipment, and specialty applications. Its tapered design supports air intake systems with varying inlet configurations, making it a practical choice for racing vehicles, generators, snowmobiles, tractors, radio-controlled cars, and other compatible equipment. The filter is engineered to provide dependable air filtration while supporting efficient airflow for many custom and replacement installations.\u003c\/p\u003e\u003cp\u003eA molded, pliable rubber flange helps absorb vibration and provides a secure connection to the intake tube. The flexible flange can accommodate slight variation between intake sizes, helping simplify installation when an exact intermediate size is not available. As a washable and reusable filter, the K\u0026amp;N RU-3700 can be cleaned and returned to service with the appropriate filter care products, including the K\u0026amp;N 99-5000 Filter Care Service Kit Aerosol.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eKey Product Specifications \u0026amp; Technical Data:\u003c\/strong\u003e\u003cbr\u003eBrand: K\u0026amp;N Engineering\u003cbr\u003ePart Number: RU-3700\u003cbr\u003eProduct Type: Universal automotive air filter\u003cbr\u003eFilter Shape: Round tapered\u003cbr\u003eTop Opening: 4.625 inches outside diameter\u003cbr\u003eBase Opening: 5 inches outside diameter\u003cbr\u003eFilter Height: 4 inches\u003cbr\u003eFlange Material: Molded pliable rubber\u003cbr\u003eServiceability: Washable and reusable\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eFitment:\u003c\/strong\u003e Listed fitment includes 2007-2011 Nissan Sentra applications. Verify intake configuration and application requirements before installation, as this is a universal filter rather than a vehicle-specific replacement. This product is not CARB approved, and applicable emissions requirements should be confirmed before use.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat's Included:\u003c\/strong\u003e One K\u0026amp;N Engineering RU-3700 Universal Round Tapered Air Filter. Backed by a one-year limited warranty. California Proposition 65 warning may apply.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eUniversal Compatibility: Designed for a wide variety of automotive, racing, powersports, equipment, and specialty air intake applications.\u003c\/li\u003e\n\u003cli\u003eTapered Round Design: Supports intake systems with different inlet configurations and custom installation requirements.\u003c\/li\u003e\n\u003cli\u003eFlexible Rubber Flange: Molded pliable rubber helps absorb vibration, improve connection security, and accommodate slight size variation.\u003c\/li\u003e\n\u003cli\u003eWashable and Reusable: Can be cleaned and serviced for continued use with compatible K\u0026amp;N filter care products.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\nFitments:\u003cbr\u003e\n2007 Nissan Sentra SE-R\u003cbr\u003e\n2007 Nissan Sentra SE-R Spec V\u003cbr\u003e\n2008 Nissan Sentra SE-R\u003cbr\u003e\n2008 Nissan Sentra SE-R Spec V\u003cbr\u003e\n2009 Nissan Sentra SE-R\u003cbr\u003e\n2009 Nissan Sentra SE-R Spec V\u003cbr\u003e\n2010 Nissan Sentra SE-R\u003cbr\u003e\n2010 Nissan Sentra SE-R Spec V\u003cbr\u003e\n2011 Nissan Sentra SE-R\u003cbr\u003e\n2011 Nissan Sentra SE-R Spec V\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":67595559043324,"sku":"RU-3700","price":114.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0641\/6518\/3740\/files\/5b2b33032f6f70456aebc89314b7694f.jpg?v=1790569818","url":"https:\/\/diycustoms.store\/products\/k-n-engineering-ru-3700-universal-round-tapered-air-filter","provider":"diycustoms.store","version":"1.0","type":"link"}