K&N 85-1221 Vent Kit: Automotive. Buy K&N 85-1221 Vent Kit: Emission System - ✓ FREE DELIVERY possible on eligible purchases. Washable and reusable 。 Shield and top plate are chrome plated 。 Nylon reinforced mounting adaptor 。 3 inch outside diameter by 2-1/2 inches tall 。 K&N crankcase vent filters are designed for racing but are trick enough for show cars. Shield and top plate are chrome-plated for beauty and durability. Nylon reinforced adapter plus a " O.D. x -/" tall filter. Universal mount, requires a -/4" I.D. hole, and a " square, flat surface. Comes complete with mounting hardware. 。 。 。
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