Electrical Box, Box Type Switch, Number of Gangs 1, Bracket Type Ears, Capacity 18 cu in, Material Steel, Number of 1/2 In. Back Knockouts 1, Number of 1/2 In. Side Knockouts 0, Number of 1 In. Side Knockouts 0, Number of 3/4 In. Back Knockouts 0, Number of 3/4 In. Side Knockouts 8, Number of Hubs 0, Rated Electrical Box, Nominal Depth 3 1/2 in, Nominal Length 3 1/2 in, Nominal Width 2 in, Color Silver, Standards UL