K&N Universal Air Filter 4in Flange / 5-3/8in Base / 4-1/2in Top / 6in Height - RU-4550

K&N's universal performance air filters are designed and manufactured for a wide variety of applications, including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and more. Many hundreds of models are are available, so regardless of the angle or offset diameter of your air intake, there is likely a K&N universal air filter for your equipment. All filters are constructed with ultra-strong, molded, pliable rubber flanges, which absorb vibration, allow for secure attachment, and can be stretched for up to 1/16 in. (1.5mm) to fit in-between sizes. K&N universal air filters are washable and reusable. Order the style and size that best suits your needs.