Best Seller | DAYTON 16D550 Wall Collar, 12 In. Wall Collar, For Blade Diameter 12 in, For Cut-Out Height 17 5/8 in, For Cut-Out Width 17 5/8 in, Thickness 20, Material Steel, Overall Depth 12 in, Overall Height 16 1/4 in, Overall Width 16 1/4 in, Finish Galvanized, Includes (4) Mounting Angle, (4)... ... more DAYTON 16D550 Wall Collar, 12 In. Wall Collar, For Blade Diameter 12 in, For Cut-Out Height 17 5/8 in, For Cut-Out Width 17 5/8 in, Thickness 20, Material Steel, Overall Depth 12 in, Overall Height 16 1/4 in, Overall Width 16 1/4 in, Finish Galvanized, Includes (4) Mounting Angle, (4)... | | $188.99 go to store |