Combination EMT To FMC Transition Coupling 3/4″ To 3/4″, Zinc
https://nsiindustries.com/product/combination-emt-to-fmc-transition-coupling-3-4-to-3-4-zinc/
The Bridgeport 3/4″ To 3/4″ Combination EMT To FMC Transition Coupling joins 3/4″ EMT and 3/4″ flexible metal conduit. The set screw end holds the EMT in place while the squeeze type end secures the flexible metal conduit.