Screw-In Coupling 1-1/2″, Die Cast Zinc
https://dev.nsiindustries.com/product/screw-in-coupling-1-1-2-die-cast-zinc/
Use Bridgeport screw-in couplings to attach two individual lengths of flexible metal conduit in a straight line. Grooved conduit screws directly into the coupling for a quick and easy installation.