Chrome Plated Zinc Alloy Cowl with Black Polymer Base. Some pitting but price to reflect that.
3" Duct Threads Into Neck, Hose Clamps Not Required
Cowl Opening: 8 square inches
Length: 5-3/4"
Width: 4-3/8"
Height: 2-5/8"
Screw Size: #8
Hardware not included, As is