Raintight Screw-on EMT Compression Connector 4″, Insulated
https://nsiindustries.com/product/raintight-screw-on-emt-compression-connector-4-insulated/
Use Bridgeport raintight screw-on compression connectors to create a raintight seal between EMT and a box or enclosure. Patented design comes with an internal sealing ring, knockout gasket and NPSM threads. Insulated throat protects wires to 105°C.