Perko Chromalex Cowl Vent - 3" Duct - Chrome Plated Zinc [1312DP0CHR] Perko Sale! from $50.81 USD /per Cowl Ventilator(1312) Chrome Plated Zinc Alloy Cowl w/ Black Plastic Base 3" Duct Threads Into Neck, Hose Clamps Not Required Length: 5-3/4"Width: 4-3/8"Height: 2-5/8" Quick Guide (pdf) Produc variants Default Title Qty. Add to Cart Couldn't load pickup availability Refresh