K&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&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&N universal air filters are washable and reusable.Features: Designed to increase horsepower and acceleration Hundreds of sizes and shapes for most applications High air flow with excellent filtration Clamp-on washable and reusable air filter Malleable flanges One year limited warranty Specifications: Air Filter Material: Cotton Gauze Package Quantity: 1 Washable: Yes Flange Type: Centered Flange Inside Diameter: 127 mm (5 in) Air Filter Shape: Round Tapered Top Material: Rubber Top Style: Rubber Top Outside Diameter: 168 mm (6.625 in) Height: 219 mm (8.625 in) Flange Length: 29 mm (1.125 in) Flanges: 1 Base Outside Diameter: 203 mm (8 in) Weight: 1.3 kg (2.9 lb) Filter Re-Oiling Amount: 201 ml (6.81 oz)