K&N 62-1410 K&N 1 inch ID 3 inch OD 2.375 inch H Rubber Base Crankcase Vent FilterK&N 62 1410 K&N 1 inch ID 3 inch OD 2. 375 inch H Rubber Base Crankcase Vent Filter 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 1410 crankcase vent filter has a black rubber top and base. The filter is 2 3 8 inches tall, 3 inches in outside diameter with a 1 inch flange which is designed to push on to the existing rubber breather