Electrical Box, Box Type Octagon, Number of Gangs 2, Bracket Type -, Capacity 15.5 cu in, Material Steel, Number of 1/2 In. Back Knockouts 0, Number of 1/2 In. Side Knockouts 2, Clamp Type KO Clamps, NMSC Clamps, Nominal Depth 1 1/2 in, Nominal Length 4 in, Nominal Width 4 in, Color Gray, Standards UL Listed. This item has been restricted from sale in the following state (s): []