Tweco® Gas Diffuser accommodates standard 16S, 16RS, 16RZ series contact tips and is ideal for use with the WC26 series nozzle assemblies as well as robotic/fixed automation MIG conductor tubes. It is perfect for protecting the quality of your welds as well as the life of your gun. Gas diffuser is designed for use in medium to heavy duty welding application up to 600 A. It features part number rolled stamped on the outer surface for easy identification. 0.939" Gas diffuser with 7/16"-20 UNC-2A conductor tube thread size has 6 gas holes. Gas diffuser is machined from 360-brass alloy bar stock to offer consistent dimensional stability. It is sold as 5 per pack.