This single-stage two-gauge regulator is designed to step the pressurised contents of a compressed gas cylinder down to a pressure that can be used in Oxy/Acetylene Cutting/Welding or Argon/CO2 Shielded MIG / TIG welding. 2 Gauges Extended side entry valve Displays – Bottle contents amp Output pressure Output pressure controlled by the dial Fits vertical outlets valves Maximum outlet pressure 3.5 BAR Inlet pressure 300 BAR BS EN ISO 25032009.