SWP 1230 Two Gauge Multistage Regulator Inert Gas (Nitrogen, Argon, Air, Helium) 10 Bar

Multi-stage regulators reduce the cyclinder gas pressure to the desired working pressure in two stages, designed to be used where constant pressure flows are critical. Once set, the outlet pressure and flow remain constant until the gas source is interrupted, or when the cylinder empties.
The two gauges display bottle and working pressures.