Raceway Outlet Boxes: Box Type - Round Junction; Material - Steel; Length - in - 4.00; Width - in - 4.00; Depth - in - 0.71; Finish - Galvanized; Additional Information - Cover has 1/2" KO, Base has 1/2" & 3/4" Concentric KOs. Includes (2) 1500WC clips; Manufacturer Series - 1500