Product Description Rigid Conduit Couplings General        The rigid conduit coupling is used to connect the electrical steel conduits together, thus extending the length of the conduit pipe. It is manufactured from seamless steel pipes according to ANSI C80.1 and UL6 standards with UL certificate number of E308290. Its trade size can be … Continue reading China OEM 1/2″ Electrical Steel Tube Accessory Rigid Conduit Couplings of Pipe Fittings Rsc