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 62-1580 crankcase vent filter has a K&N embossed, black powder-coated metal top and rubber base. The 1-1/4 inch flange is designed to clamp on to plastic or metal tubing. Constructed with a cotton filter media, it can be cleaned and reused repeatedly. A 1/2 ounce pillow pack of K&N air filter oil is included. 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.