IMC conduit Pre-galvanized Steel tube UL:
IMChas other advantages over GRC. It has a larger interior diameter than GalvanizedRigid Conduit and the smoother interior of the pipe allows for easier wirepulling through the conduit.IMC conduit is coated in a hot galvanized coating onthe exterior and a special corrosive-resistant coating on the inside to extendthe conduit's lifespan for reliability. Common conduit sizes range from ½" to4".
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