Harris Two Stage Ultra High Purity Brass Barstock Regulator Model 721-250-540-D - 721250540D Cross Country and then using this tool

and then using this tool to spread the gap to the desired width

Measures pipe ends up to 17" (432 mm) in diameter

Lincoln OEM BAFFLE G3862-2 - 9SG3862-2

Lincoln OEM PLUG & LEAD ASBLY S18250-937 - 9SS18250-937

Lincoln Tech Rod 55 in 1/8 in x 14 in

Harris Two Stage Ultra High Purity Brass Barstock Regulator Model 721-250-540-D - 721250540D Cross Country and then using this toolHarris Two Stage Ultra High Purity Brass Barstock Regulator Model 721 250 540 D 721250540D Model HP721 is a Single Stage Cylinder Regulator in Brass Barstock for pressure control of non corrosive gases when pressure rise is not critical. The Model 721 is suitable for High Purity gas applications, research sample systems gases, process analyzer gases, gas chromatography, EPA protocol gases, laser gas systems and emission monitoring systems. Features 1