Gas Regulator CO2 Mig Mag Welder Welding Machine High Standard Copper Flow Meter Gauge Electric Gas Regulator For Mig Welder CONNECTOR please kindly check the connector details before placing order HIGH STANDARD The material of body is forging brass with electric plating.Inlet tube has bronze screen. 2 gauge The allowed max inlet pressure: 11.8 Mpa(120kgf/cm) while Argon or Mixed gas. You must check the pressure of the cylinder not higher than the allowed max inlet pressure of this products to avoid any hurt. You must follow the operation manual and do not unassemble it by yourself.