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Vent Air Filter/Breather; Constructed with a cotton filter media, this crankcase vent filter comes with a K&N embossed chrome-plated steel top and rubber base. The flange is 1 inch in diameter and mounts directly on to existing rubber breather grommets.

SPECIAL ORDER Vent Fltr/ Breather; Constructed with a cotton gauze filter media, this crankcase vent filter comes with a black rubber top and base. The tube is 1 inch in diameter and pushes into rubber or plastic tubing.

Air Filter Vent Kit; Universal adapters for smog tubes, crankcase and valve cover vents. Requires drilling hole in air filter base or valve cover. All come with mounting hardware and gasket.

Air Filter Vent Kit; Universal adapters for smog tubes, crankcase and valve cover vents. Requires drilling hole in air filter base or valve cover. All come with mounting hardware and gasket.

Air Filter Vent Kit; K&N Marine Style Vent Hose Adapters mount between the top and bottom plates of a custom chrome air filter assembly. Vent adapters accommodate breather hoses without drilling into the filter base.

Air Filter Vent Kit; K&N Marine Style Vent Hose Adapters mount between the top and bottom plates of a custom chrome air filter assembly. Vent adapters accommodate breather hoses without drilling into the filter base.

Vent Air Filter/ Breather; Constructed with a synthetic filter media, this crankcase vent filter comes with a K&N embossed rubber top and steel base. The tube is 3/8 inch in diameter and clamps directly on to metal or plastic tubing where venting is needed.

Vent Air Filter/ Breather; Constructed with a synthetic filter media, this crankcase vent filter comes with a K&N embossed rubber top and steel base. The tube is 1/2 inch in diameter and clamps directly on to metal or plastic tubing where venting is needed.

Vent Air Filter/ Breather; Constructed with a synthetic filter media, this crankcase vent filter comes with a K&N embossed chrome-plated steel top and base. The tube is 1/2 inch in diameter and clamps directly on to metal or plastic tubing where venting is needed.

Vent Air Filter/ Breather; Constructed with a synthetic filter media, this crankcase vent filter comes with a K&N embossed rubber top and steel base. The tube is 5/8 inch in diameter and clamps directly on to metal or plastic tubing where venting is needed.

Vent Air Filter/ Breather; Constructed with a synthetic filter media, this crankcase vent filter comes with a K&N embossed rubber top and steel base. The tube is 3/4 inch in diameter and clamps directly on to metal or plastic tubing where venting is needed.

Vent Air Filter/ Breather; Constructed with a cotton gauze filter media, this crankcase vent filter comes with a rubber top and chrome-plated steel base. The tube is 1 inch in diameter and clamps directly on to metal or plastic tubing where venting is needed.