Mulberry; Box Extension; Round; Number Of Outlet: 4; Material: Heavy Duty Die Cast Aluminum; Size: 4 IN Diameter X 1.500 IN Depth; Color: Gray; Cubic Capacity: 15.300 CU-IN; Hub Size: 0.500 IN; Includes: Gasket, 4 Close-Up Plugs, 2 Stainless Steel Mounting Screws, And 10 Green Ground Screw