Bridgeport 250-RT2 1/2 Rain Tight Comp. Conn, Box of 50
https://nsiindustries.com/product/raintight-screw-on-compression-connector-1-2-die-cast-zinc/
Use Bridgeport raintight screw-on compression connectors to create a raintight seal when connecting EMT to an electrical box or enclosure. Patented design comes with an internal sealing ring, knockout gasket and NPT threads for keeping water out.