K&N RU-2590 Universal Clamp-On Air Filter

K&N RU-1480 Engine Air Filter

K&N Universal High-Flow Round Tapered Red Air Filter 4" Flange x 5.375" Base

K&N for Filter Universal Rubber Filter 4 inch Flange 5 3/8 inch Base 4 3/8 inch

K&N Universal Clamp-On Air Filter

K&N Filter Universal Rubber Filter 4 inch Flange 5 3/8 inch Base 4 3/8 inch Top

For K&N Filter Universal Rubber Filter 4 Inch Flange 5 3/8 Inch Base 4 3/8