Insulated 90-Degree Connector 2-1/2″, Malleable Iron
https://nsiindustries.com/product/insulated-90-degree-connector-2-1-2-malleable-iron/
Use Bridgeport 90-degree connectors to join flexible metal conduit to an electrical box or enclosure at a 90-degree angle. An insulated throat protects inner wiring up to a temperature of 105°C.