90-Degree Duplex Connector 3/8″, Malleable Iron
https://nsiindustries.com/product/90-degree-duplex-connector-3-8-malleable-iron/
Use Bridgeport 90-degree duplex connectors to join two individual runs of flexible metal conduit to an electrical box or enclosure at a 90-degree angle. Duplex design allows for two conduit runs to be connected to a single knockout.