This two-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. Double chamber gas control Fits cylinders with vertical outlet valves Two gauges display- Bottle contents and output pressure Pressure controlled by the centre dial Maximum outlet pressure 1.5 Bar Maximum inlet pressure 20 Bar Left hand thread