Brass Gas Diffuser is ideal to be used with 14 Series tips on up to 450 A Tweco® MIG guns. Gas diffuser perfectly goes well with threaded as well as slip-on nozzle assemblies. Diffuser assures of consistent dimensional stability with its 360-brass alloy bar stock construction. Medium to heavy duty welding applications make use of this gas diffuser, which is sold as 5 per pack.