Flexible Conduit Coupling, Trade Size 4 IN, Fitting Material Natural Finished Stainless Steel, Material Natural Finished Stainless Steel Braid/Core, End Type (2) Male Nipples, Flex Length 30 IN, Enclosure Class I Group D, Class II Group E F G, Class III, Approval UL 886, CSA C22.2, Includes Insulating Liner, Constructional Feature Explosionproof, Dust-Ignitionproof, Watertight, Used on Rigid Metal Conduit and IMC