Our welding gas mixers make it possible to mix chemically inert argon with other gases, such as hydrogen, CO2 and helium. Simply connect your inlet supply hoses, connect your outlet hose and set the gas mixture knob to your desired primary gas percentage. The secondary gas will make up the balance of the percentage. These two-gas mixers vary by the type of gas they mix with argon. For more on welding, see our torch and torch kits and cutting torches.