... 1 dayThis Italy type argon regulator (gas regulator,flowmeter) is featured :1) Designed for Oxygen, acetylene,argon,CO2,C2H2 etc applications ... bonnet for maximum strength4) Calibrated for argon, helium and carbon dioxide gases5) Flowmeter is backpressure compensated to ensure accurate readings ... in), bar, kg/cm2 (kgf/cm2)10) For flowmeter,polycarbonate flow tube and outer cover are impact resistant for ...