Exhaust Fan Venturi Frame, For Blade Dia. 24 in, Height 28 in, Width 28 in, Max. Depth 8 7/8 in, Dia. Opening Required 26 1/2 in, Flange Width 1 in, Venturi Depth 3 1/2 in, Frame Material Steel, Frame Finish Galvanized, Dimension A 28 in, Dimension B 4 1/2 in, Dimension C 24 1/2 in, Dimension D 12 in, Includes Mounting Bolts and Slotted Motor Base To Accept 48 Or 56 Frame Motor. This item has been restricted from sale in the following state (s): []