UNILETS Outlet Box, Number Of Outlet: 2, Material: Malleable Iron, Size: 3/4 IN, Cable Entry: (2) 3/4 IN SEHC Hub, Cubic Capacity: 18 CU-IN, Knockouts: No, Height: 4 IN, Width: 4 IN, Depth: 1.69 IN, Finish: Triple-Coat (Zinc Electroplate, Chromate And Epoxy Powder Coat), Standard: UL 514A , UL File Number E2527, For Use With Threaded Metal Conduit And IMC