Features Designed for indoor, outdoor, concealed, underground, and exposed applications, this pipe nipple can be used as a raceway system for electrical conductors. Material / Galvanized Steel Overall Length / 2 in Conduit Fitting Type / Nipple Standards / ANSI C80.1, U.L.6, ASTM A733-01, ANSI/ASME B1.20.1 For Use With / Rigid Conduit For Conduit Type / Rigid