47 Royal Mountie™ 2-Gang Weather-proof outlet box in gray color, features powdered 0.094-Inch thick die-cast aluminum construction. This square box measuring 4.5-Inch x 4.5-Inch x 2.625-Inch, has capacity of 37.3-Cubic-Inch. It has seven holes of size 3/4-Inch. This box has two holes at each end, one hole at each side and one at the back. It comes with detachable lugs, two close-up plugs and self-tapping ground screw. Surface mountable box is ideal for use with all standard FS, outlet, lampholder or splice box covers. Box is UL listed, CSA certified and meets Federal specification AA-50563 standards.