K&N RU5288 Universal Round Tapered Clamp On Air Filter - 3" ID Flange X 6" OD

K&N part number RU5288. Air Filter Shape Round Tapered. Flange Type Centered. Product Style Round Tapered Universal Air Filter. Flange Length 1 in (25 mm). CLEAN ONCE EVERY 5 YEARS: Engine air filter only needs cleaning every 75,000 miles under normal highway driving conditions (5 years based on the average. ).