Spectre Performance HPR9612 Universal Clamp-On Air Filter: Round Tapered; 4 in (102 mm) Flange ID; 10.25 in (260 mm) Height; 7.5 in (191 mm) Base; 4.313 in (110 mm) Top Factory pre-oiled filter comes ready to use Quality materials used in the construction Easy to install clamp-on style Available with red, blue, black or white media Features low-restriction, washable oiled synthetic media