Combination EMT To FMC Transition Coupling 1/2″ To 3/8″, Iron
https://nsiindustries.com/product/combination-emt-to-fmc-transition-coupling-1-2-to-3-8-iron/
The Bridgeport 1/2″ To 3/8″ Combination EMT To FMC Transition Coupling joins 1/2″ EMT to 3/8″ flexible metal conduit. The compression end holds the EMT in place while the two-screw strap secures the flexible metal conduit.