1/2", Universal Metallic Conduit Anybody, 5 Conduit Bodies In 1, Copper Free Aluminum Die Cast, Ships As An LB But Converts To A T, Ll, Lr Or C, Just Switch The Covers & Threaded Flanges As Needed To Create The Style You Need For Your Project, Emt/Rigid, Threaded For Rigid, But Also Have A Set Screw For Use With Emt, Includes All Threaded Flanges For The Hole Configurations, Recessed O Rings Under Covers & Flanges.