K&N Filter 1in Vent 3in Diameter 2in HeightK&N crankcase vent filters are perfect for racing applications, vintage cars or individuals who want to add some aesthetics to their classic carbureted engine. The 62 1170 crankcase vent filter has a K&N embossed chrome plated steel top and chrome plated steel base. The 1 inch diameter zinc tube is designed to push in and clamp directly on to metal or plastic tubing where venting is needed. Constructed with a non woven synthetic filter media it can be