Rigid To Enclosure Raintight Compression Connector 1/2″, Steel
https://dev.nsiindustries.com/product/rigid-to-enclosure-raintight-compression-connector-1-2-steel/
The Bridgeport 1/2″ Steel Threadless Compression Raintight Rigid To Enclosure Connector joins unthreaded rigid conduit to a box or enclosure in a wet location. The connection is secured via a screw on compression fitting.