SÜA Oxygen Regulator Welding Gas Gauges - Compatible with Harris

CGA-540 Inlet Fitting 9/16" - 18 RH Outlet Fitting Max Inlet Pressure: 3000 psi Delivery Pressure Range: 0-145 psiYou may also like SÜA - Propane Regulator Welding Gas Gauges - CGA-510 - Rear Connector - LDP series.