62-1110Zinc 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.