Exhaust Fan Venturi Frame, For Blade Diameter 30 in, Includes Mounting Bolts, Slotted Motor Base, Overall Depth 9 3/4 in, Overall Height 34 in, Overall Width 34 in, Venturi Depth 4 1/2 in, Flange Width 1 in, For -Out Height 32 1/2 in, For -Out Width 32 1/2 in, Frame Finish Galvanized, Material Steel, Opening Diameter 32 1/2 in