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K&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 62-1550 crankcase vent filter has a K&N black rubber top and base. The 1 inch diameter zinc tube is designed to push in and clamp directly on to rubber or plastic tubing where venting is needed. Constructed with a cotton filter media it can be cleaned and reused repeatedly. Note: Legal in California only for racing vehicles which may never be used, registered, or licensed for use upon a highway. See knfilters.com for CARB status on each part for a specific vehicle.