Power Strut PS 1300 1" Pipe Clamp Rigid Thin Wall Conduit NIB 276C. This Power Strut PS 1300 1" Pipe Clamp is perfect for securely mounting rigid thin wall conduits. Made of zinc-plated steel, this clamp is durable and reliable. Its track mounting style and screw connection type ensure easy installation. The silver color of the clamp adds a sleek and professional look to any electrical installation project. This unit type clamp is designed for use with Rigid Metal (RMC) conduit and has a diameter of 1". The accessory type is conduit clamps, and it is manufactured in the United States. Its rigid flexibility ensures that it firmly holds the conduit to the track. This item is brand new in box (NIB) and is perfect for use in various electrical equipment and supplies applications.