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Miller® Medium Duty Ar/CO2 Mix, Argon, Argon/Carbon Dioxide Mix, And Helium Single Stage Regulator, CGA-580

Airgas Part #:MILH2051B-580

Manufacturer Part #:H2051B-580

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Item Details

  • Miller® Smith® flowmeter/regulator provides precise shielding gas regulation for MIG and TIG welding applications. Shatter resistant polycarbonate flow tube features triple scale for Argon, Helium and Argon/CO2 and has a packless O-ring flow tube seal, which reduces maintenance. Built-in rupture disc reduces possibility of flow tube damage due to high pressure inlet surge. Precision flow adjustment valve locks flow at desired setting.


  • Shatter-resistant polycarbonate flow tube
  • High visibility red flow meter ball
  • Triple Scale measures Argon, Helium, CO2 and Argon/CO2
  • Precision flow adjustment valve locks at desired setting
  • Packless "O" ring flow tube seal reduces maintenance
  • Protective inlet filter guards against impurities

Product Attributes

Regulator Type

» Single Stage Regulator

Gas Service

» Ar/CO2 Mix
» Argon
» Argon/Carbon Dioxide Mix
» Helium

Delivery Rate

» 50 psig

Inlet Connection

» CGA-580


» Medium Duty

Outlet Connection

» 5/8" - 18 (RH Internal)

Gauge Diameter

» 2"