Description Reviews K&N's Universal Air Filters are designed and manufactured for a wide variety of applications. Regardless of the angle, offset diameter of the air intake, there is 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" (1.5mm) to fit in-between sizes. K&N Universal air filters are available in round, tapered (cone style) and oval designs, for just about any special application. Part RU-1480 Product Specifications: Product Style: Round Straight Universal Air Filter Filter Material: Cotton Gauze Flange Angle: 10 degrees Flange Inside Diameter: 2.75 in (70 mm) Flange Length: 1 in (25 mm) Flanges: 1 Flange Type: Angled Height: 7 in (178 mm) Outside Diameter: 4 in (102 mm) Top Material/Finish: None Top Style: Rubber Filter Re-Oiling Amount: 0.69 oz (21 ml) Inner Wire: No Weight: 0.88 lb (0.4 kg) Product Box Length: 5.56 in (141 mm) Product Box Width: 4.56 in (116 mm) Product Box Height: 9.06 in (230 mm) This is the filter that we use on most of the DDM intake systems! Need to clean the filter? Use this cleaning kit!