Electrical Box, Box Type Round Ceiling Pan, Number of Gangs 2, Bracket Type For Ceiling Fan Support, Capacity 12.5 cu in, Material , Number of 1/2 In. Back Knockouts 0, Number of 1/2 In. Side Knockouts 0, Clamp Type -, Rated Fan Rated, Nominal Depth 2 5/8 in, Nominal Length 4 in, Nominal Width 4 in, Color Black, Standards File E104681 and R9320, UL Standard 514-C