Fit most of the medium to heavy duty oxygen regulators.
High pressure side gauge; 0-4000 psi - Low-Pressure side gauge; 0-200 psi - Available individually or as a low and high pair - Select you option from the menu.
2-" inches easy to read dial in PSI and KPA pressure units.
Golden plated steel case and sturdy construction 1/4" NPT bottom inlet connector fits most common medium to heavy duty regulators, (They wont fit the s all regulators found in portable sets) - Check picture N2 and make sure these gauges will fit your regulator.
