62-12505/8 inch zinc tubeRubber top and chrome-plated steel base plateMounts directly into rubber grommets in valve coversWashable and reusable filter mediaK&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 62-1250 crankcase vent filter has a black rubber top with a chrome-plated steel base. The 5/8 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 cotton gauze filter media it can be cleaned and reused repeatedly.