3/4", 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, Durable Die Cast Aluminum Construction, NEMA 3R Rated, 2014 NEC Compliant.