1/2", Oval Thread Body, For Use With Threaded Rigid/IMC Conduit For Pulling Access Or To Split A Run Into Multiple Directions, Removable Cover Allows Access For Maintenance & Making Taps & Splices To Conductors, Durable Die Cast Aluminum Construction, Premium Powder Coat Finish, Includes NBR Synthetic Rubber Gasket Stamped Aluminum Cover, Combination Head Screw, NEMA 3R Rated, 2014 NEC Compliant.