Eaton B-Line series strut mounting bracket, Conduit and cable, 1" Height, 1" Length, 1" Width, 0.333lbs, Conduit size EMT: 3.5", Rigid: 3.5", Conduit strut clamps, 3.750" Min, 4" Max cable diameter, 400 lbs load capacity, Pre-galvanized
Reference : B1556S