UNILETS FDCT Deep Depth 1-Gang Cast Device Box, Number Of Outlet: 3, Material: Malleable Iron, Size: 3/4 IN, Cable Entry: (3) 3/4 IN Hub, Cubic Capacity: 25 CU-IN, Knockouts: No, Height: 4.56 IN, Width: 2.81 IN, Depth: 2.69 IN, Finish: Triple-Coat (Zinc Electroplate, Chromate And Epoxy Powder Coat), Standard: UL 514 A, UL File Number E2527, CSA C22.2 No. 18.1, CSA 001472 Certified, NEMA FB-1, For Use With Threaded Metal Conduit And IMC