Spectre Conical Air Filter 3in. Flange ID / 6in. Base OD / 6.5in. Height - BlackSpectre's Flat Top Cone Air Filter is manufactured using high quality materials including washable synthetic media, urethane, and steel mesh. This filter is engineered to increase air flow for greater performance, and comes factory pre oiled and ready to use. Designed to fit 3 inch intake tube applications, this high performance air filter features black filter media and is also offered in red, blue, or white. Not included are the worm gear clamps