Bridgeport 1172 2 IN – 3/4 IN Reducing Bushing, Box of 10
https://nsiindustries.com/product/reducing-bushing-2-to-3-4-steel-threaded-fitting/
Use the Bridgeport 2″ to 3/4″ Steel Reducing Bushing to reduce the size of internal female threads when joining two lengths of threaded rigid or IMC conduits.