Zinc tube baseBaseplates are chrome platedMounted directly into rubber grommets in valve coversWashable and reusableK&N Steel Base Crankcase Vent Filters have a one piece design with a rubber or chrome top and a vent tube added to the base. Filters can be pressed into rubber grommets in valve covers for direct mounting. All base plates are chrome plated. Tubes are made of zinc. Product Specifications:Filter Material Cotton GauzeFlange Length 1 in (25 mm)Flanges 1Height 1.5 in (38 mm)Inner Wire NoOutside Diameter 2 in (51 mm)
