Tweco® Nozzle is perfect for standard gas diffuser and perfect for protecting the quality of your welds as well as the life of your gun. It is ideal for use in medium and heavy duty welding application up to 400 A. It has a spatter shield contains each nozzle that is made from silicone material. It is made from tellurium copper alloy features part number rolled stamped on the external surface for easy identification. Nozzle housing is made from tellurium copper alloy bar to assure consistent dimensional stability and efficient heat dissipation. It features threads onto the outer jacket assembly of water-cooled conductor tubes.