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Western Medium Duty Air Single Stage Regulator CGA-346

Airgas Part #:WESRS-2-4H

Western Enterprises

Manufacturer #:RS-2-4H

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$258.35 /Each
Package Size: 1 Each
$258.354 Each
$258.35 Each

Typically in Stock

Item Details

  • Western CGA-346 Air Single Stage Regulators with maximum delivery capacity of 0 - 180 PSIG for applications that require constant delivery pressure at high flow rates. Regulator has twin inlet filters for added regulator service life and a self re-seating pressure relief valve to protect against high pressure. Regulator featured with 2" twin scale gauges offers a 0 - 3000 PSIG of maximum inlet pressure. Corrosion resistant regulator made of machined brass body with 2" neoprene diaphragm to maintain constant pressure delivery. Regulator fitted with 1/4" NPT female outlet renders a maximum flow capacity of 6500 scfh which is perfect for welding, laboratory and general-purpose applications.


  • Machined brass body and bonnet for extended service life
  • 2" reinforced Neoprene diaphragm
  • 450 psig models have KEL-F® seat to accommodate high pressure applications
  • Dual inlet filters extends regulator service life
  • Hydrogen and methane models equipped with pipe away relief valves
  • Most models include self reseating pressure relief valve (except for RS-1-1, RS-1A-1, RS-10-2)
  • Nickel chrome plated zinc bonnet
  • Large 2" gauges with easy to read gradients
  • Three year warranty
  • Made in the USA


  • UL Listed

Product Attributes

Regulator Type

» Single Stage Regulator

Gas Service

» Oxygen » O2

Delivery Rate

» 0 - 180 psig

Inlet Connection

» CGA-346


» Medium Duty

Outlet Connection

» 1/4" NPT (Female)

Gauge Diameter

» 2"