Intermediate Metal Conduit, Grounded Electrical Wiring System Application, Yellow (Cap) Color, 0.810 to 0.820 In;20.57 to 20.83 MM Conduit Outer Diameter, Electro Galvanized Finish, 9 FT 11-1/4 In Length, Made In Usa, Flat Rolled Steel Material, 100 CT Package Quantity, Corrosion Resistant;Electric Resistant Special Features, Ansi/Nema Standard;File #E79211;Ul 1242;Ul Standard Standards Met, 1/2 In;16 MM Trade Size, 0.070 to 0.085 In;1.78 to 2.16 MM Wall Thickness, 0.6 LB/FT Weight