K&N 62-1090 Vent Air Filter / Breather: Vent Air Filter/ Breather; 0.25 in (6 mm) Flange ID; 1.5 in (38 mm) Height; 2 in (51 mm) Base; 2 in (51 mm) Top Zinc tube base Baseplates are chrome plated Mounted directly into rubber grommets in valve covers Washable and reusable