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Harris® Model 425-125PSI-CGA590 Heavy Duty Industrial Premium Industrial Air Single Stage Regulator, CGA-590

Airgas Part #:HCL3000821

Manufacturer Part #:3000821

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Item Details

  • Harris Model 425-125-590 medium to heavy-duty single-stage regulator is specifically designed for gaseous withdrawal from industrial air cylinders with a pressure regulation of 0.2 PSIG/100 PSIG. Regulator with 2 1/2" brass scale gauges features delivery pressure ranging from 0-125 PSIG and supply pressure gauges of 4000 PSIG. Regulator incorporating a 590 CGA-inlet and 9/16"-18 RH outlet features one-piece encapsulated seat design with an internal filter and a PTFE Teflon® seat.


  • One-piece encapsulated seat design with internal filter and a PTFE Teflon® seat
  • Brass bonnet and body
  • Bronze adjusting screw for smooth adjustment
  • 2.5" brass dual scale gauges
  • Featured in the Pipeliner® Classic Kits


  • Tamper-proof self-reseating internal HP safety valve included


  • Industrial applications

Product Attributes

Regulator Type

» Single Stage Regulator

Gas Service

» Industrial Air

Delivery Rate

» 0 - 125 psig
» 200 psig

Inlet Connection

» CGA-590


» Heavy Duty

Outlet Connection

» 1/4" NPT (Male)

Gauge Diameter

» 2.5"