Thomas & Betts, 1/2" Electrical Metallic Tubing Corner Pull Elbow, Set Screw, Thinwall Conduit. Die Cast Zinc. Use To Facilitate Pulling Conductors Through A Sharp Bend In A Run Of Electrical Metallic Tubing In Dry Locations, The Removable Cover Gives Access So That Wire Pulling Can Be Achieved Without Obstructions, UL & CSA Listed.