Spectre Performance HPR0891 Universal Clamp-On Air Filter: Round Tapered; 6 in (152 mm) Flange ID; 8.5 in (216 mm) Height; 7.719 in (196 mm) Base; 5.125 in (130 mm) Top Designed specifically for diesel engines Factory pre-oiled filter - ready to use Quality materials used in the construction Easy to install with no special tools or skills required Available with red, blue, black or white washable media