Bolt-On SCC Series Split Coupling, Trade Size: 3 IN, Outside Diameter: 4 IN, Length: 5 IN, Flexibility: Rigid And IMC, Material: Malleable Iron Coupling, Steel Hardware, Neoprene Gasket, Connection: Threaded, Finish: Zinc Electroplate, Standard: UL 514B, UL File Number E14814, CSA C22.2 No. 18.4, CSA 702992 Certified, NEMA FB-1, For Threaded Rigid Conduit and IMC