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. Single chamber gas control Fits cylinders with vertical outlet valves Two gauges display the bottle contents and output pressure Pressure controlled by the centre dial Maximum outlet pressure 3.5 Bar or 10 Bar depending on model selected Right hand thread.