K&N Universal Tapered Clamp On Filter With Universal Flage Inserts9.5 in (241 mm) H x 3.5 in 4.75 in (121 mm) Top OD 6 in (152 mm) Base OD - KNRG-1002RDBrand: K&NPart Number: KNRG-1002RDDescription: K&N adjustable fitting Universal Air Filters are madewith flange inserts which adjust the filter's flange to one of three inside flange diameters. The flange on thesefilters is made with ultra-strong molded pliable rubber which absorbs vibrationand allows for secure attachment. K&N clamp-on universal air filters are washable and reusable. Designed to increase horsepower and acceleration Includes inserts to fit three differentflange diameters High air flow with excellent filtration Clamp-on washable and reusable air filter Product SpecificationsAir Filter Large End Diameter 6 in (152 mm)Air Filter Shape Round TaperedBase Outside Diameter 6 in (152 mm)Color RedFilter Material Cotton GauzeFlange Inside Diameter (1) 4in (102 mm)Flange InsideDiameter (2) 3.5 in (89 mm)Flange Inside Diameter (3) 3in (76 mm)Flange Length 1.125 in (29 mm)Flange Type CenteredFlanges 1Height 9.5 in (241 mm)Product Style Round Tapered Universal Air FilterTop Material/Finish ChromeTop Outside Diameter 4.75 in(121 mm)Top Style Metal