Perko, Chromalex Cowl Ventilator, 1312DP0CHR

Chrome plated zinc cowl with black plastic base. 3" duck threads into neck. Hose clamps not required..

$52.51

Perko, Clam Shell Ventilator, 0339DP0CHR

Chrome plated brass. Screw size is 6. Cut Out: 1-5/8" x 2-1/2"Base: 4" x 3-3/4"..

$66.40