Outlet Box, Pre-Galvanized, Silver, 29.5 Cu.In Capacity, Square, Knockout Cable Entry, 1/2 In (Side);3/4 to 33/64 In (Side);1/2 In (End);3/4 to 33/64 In (End);1/2 In (Bottom);3/4 In (Bottom) Knockout Size, 16 Knockouts, Wall or Ceiling Mount, 1 Outlet, 4-11/16 In Length, 4-11/16 In Width, 1-1/2 Height, 0.89 LB/Ea