Bridgeport 4195-DC 3/4 Rigid To Dplex Jmc/Teck Cn, Box of 10
https://nsiindustries.com/product/mighty-seal-rigid-to-duplex-jmc-teck-transition-coupling-3-4/
Use Bridgeport transition couplings to transition between EMT or rigid conduit and multiple JMC/TECK cables in wet locations. NPT tapered threads also permit installation into threaded boxes.