K&N RU-1770 Universal Reusable Cotton w/ Rubber 3.75" Dia. Round Air Filter

K&N RU-1770 Universal Clamp-On Air Filter

K&N for Filter Universal Rubber Filter 2 7/16 inch 20 Degree Flange 3 3/4 inch

K&N RU-1770 Engine Air Filter

K&N Engine Air Filter

K&N Universal Round Clamp-On Air Filter 2 7/16" I.D. 62MM Flange (RU-1770)

K&N Filter Universal Rubber Filter 2 7/16 inch 20 Degree Flange 3 3/4 inch OD 6

K&N RU-1770 Clamp-On Air Filter | 3.75in OD x 6in H, 2.438in Flange ID