Spectre's clamp-on cone style air filter has a 3 inch inside diameter flange and measures 6 1/2 inches tall. This air filter is a great option for air intake setups that use a 3 inch diameter tube, adapter or throttle body. The air filter includes our red HPR washable air filter media and has been engineered to increase flow for greater performance over a typical paper air filter. This HPR air filter is factory pre-oiled and is ready to use. The air filter does not include a hose clamp, we recommend using part number 8704. Spectre s clamp-on cone style air filter has red media; has a 3 inch inside diameter flange and measures 6 1/2 inches tall . This air filter is a great option for air intakes that use a 3 inch diameter tube.