Oxygen Regulator used with welding machines, has big brass body and steel cover, plastic knob, double gauges, with safety valve. Oxygen RegulatorUsed with welding ... big brass body and steel cover, plastic knob, double gauges, with safety valve.Features: 1) Inlet pressure: 15mpa2) Adjusting range: ... 0-2.5mpa, 0-25mpa10) Scale: single or double scale with psi (lb/in), bar, kg/cm2 (kgf/cm2)Inner Packing ...