Wall Collar, For Blade Diameter 48 in, For Cut-Out Height 55 5/8 in, For Cut-Out Width 55 5/8 in, Thickness 18 ga, Material Steel, Overall Depth 23 1/2 in, Overall Height 54 1/4 in, Overall Width 54 1/4 in, Finish Galvanized, Includes (4) Mounting Angle, (4) Side Panel. This item has been restricted from sale in the following state (s): []