Electrical Box, Box Type Surface Mount, Number of Gangs 4, Bracket Type -, Capacity 256 cu in, Material PVC, Number of 1/2 In. Back Knockouts 0, Number of 1/2 In. Side Knockouts 0, Clamp Type -, - Hub Location, Rated -, Nominal Depth 4 in, Nominal Length 8 5/8 in, Nominal Width 8 5/8 in, Color Gray, Standards UL