UNILETS Sealing Hub, Size: 5 X 6 IN, Material: Malleable Iron, Finish: Triple-Coat (Zinc Electroplate, Chromate And Epoxy Powder Coat), Connection: Tapered MNPT X Tapered FNPT, Cubic Capacity: 143.73 CU-IN, Length: 7-1/2 IN, Height: 7.63 IN, Standard: UL 886 (1203), UL File Number E10444, CSA C22.2 No. 30, CSA 065181, For Use With Threaded Rigid Metal Conduit and IMC