Neoprene Service Entrance Roof Flashing 4″
https://hotfix.nsiindustries.com/product/neoprene-service-entrance-roof-flashing-4/
The Bridgeport 4″ Neoprene Service Entrance Roof Flashing prevents water from entering a building where a conduit mast comes out of the roof surface. This flashing fits flats to 45 degree angle roofs.