Key Points: Argon / Argon- CO2 Mixtures / Helium Regulator, reduces high pressure from the shield gas cylinder to the specified flow used in TIG and MIG welding processes. Argon Regulator for Shield Gas in TIG and MIG Welding Gas Service: Argon, Argon/CO2 Mixtures, Helium - Inlet Connection: CGA-580 Three Outlet Connection Options: 9/16" Male, 5/8" Female and Hose Barb Inlet Gauge: 0-400 psi - Dual Scale Outlet Gauge: Argon 0-30 CFH and CO2 0-20 CFH ARGON HOSE NOT INCLUDED Key Features: Please check product compatibility carefully to ensure it is the product you need. So as not to waste your time and energy on return. Package Including: .