This type regulator (gas regulator,flowmeter) is featured :

1) Designed for Oxygen, acetylene,argon,CO2,C2H2 etc applications and provide accurate regulation of gas flow
2) Provides reliable performance in commercial, industrial and laboratory applications
3) Forged brass body and bonnet for maximum strength
4) Calibrated for argon, helium and carbon dioxide gases
5) Flowmeter is backpressure compensated to ensure accurate readings when line
restrictions are present
6) 2" 2.5 3 high-pressure gauge for easy reading
7) External safety pressure relief design
8) Sintered bronze inlet filter
9) Scale: single or double scale with PSI (lb/in), bar, kg/cm² (kgf/cm²)
10) For flowmeter,polycarbonate flow tube and outer cover are impact resistant for maximum
durability and service life