This 4" SSP-400 Split Coupling is a threaded unit that can be used for rigid metal conduit (RMC). The coupling is made of steel and has a silver color with a zinc plated finish. It is a stand-alone unit that is very rigid and inflexible. The accessory type is a conduit coupling, with a 4-inch diameter. The item is new in box with part number 276J and was manufactured in the United States. It is suitable for use in a variety of applications and is a reliable option for electrical equipment and supplies.