Stainless Steel Clam Shell Vent - Large Large Clam Shell Ventilators provide splash protection for vent holes, wires, cable runs, or blower-exhaust hose openings. Corrosion resistant 304 stamped stainless steel construction. Can be used for cabin...

Stainless Steel Cowl Vent Cowl Vent provides fresh air below decks by trapping air that comes across the top deck and forcing it into your boat's cabin or interior. Stamped 304 stainless steel construction. Installs with four #8 FH fasteners (not...

Stainless Steel Cowl Vent with Base - 3" Hose Cowl Vent with Base provides fresh air below decks by trapping air that comes across the top deck and forcing it into your boat's cabin or interior. Stamped 304 stainless steel construction with black...

Clam Shell Ventilator - Chrome Plated Brass - 4" x 3-3/4"Specs: Chrome Plated Brass Dimensions Base: 4" x 3-3/4" Width Opening: 2-1/2" Height Opening: 1-5/8" Screw Size: #6

Cowl Ventilator(0870)Chrome Plated Zinc Alloy Cowl with Black PERKO-KOTE Base3" Duct Thread into Neck, Hose Clamps Not RequiredCowl Opening Square: 7-1/3"