Hubbell-Raco 1882-20 Rigid Conduit Nipple, 1/2-Inch Close Durable steel construction insures mechanical protection for the raceway Galvanized Steel construction provides corrosion resistance Suitable for both indoor and outdoor applications For use with 1/2 in. Rigid/IMC conduit Durable steel construction insures mechanical protection for the raceway Suitable for both indoor and outdoor applications For use with 1/2 in. Rigid/IMC conduit