Allied Tube IMC (Intermediate Metal Conduit) is the lighter-weight ductile steel conduit for long life and easy bending. Weighs 1/3 less than rigid conduit and saves up to 30% in cost over galvanized rigid conduit. Hot galvanized exterior increases corrosion resistance and protects against white rust. Interior coating creates a smooth, continuous raceway for fast wire pulling. UL (Underwriter's Laboratories) 1242 Listed and manufactured in accordance with ANSI (American National Standards Institute) C80.6. Comes in 10' lengths with threaded ends.