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Exhaust Fan Venturi Frame, For Blade Diameter 16 in, Includes Mounting Bolts, Slotted Motor Base, Overall Depth 8 1/2 in, Overall Height 20 in, Overall Width 20 in, Venturi Depth 3 in, Flange Width 1 in, For Cut-Out Height 18 1/2 in, For Cut-Out Width...
