Ashcroft Receiver Gauge 25 PSI Max. Pressure – NewAshcroft Duragauge Solid Front 25 PSI Maximum Input Pressure / 1/2" NPT fitting, Bronzetube, brass socket / This is a receiver gauge. It should only be used to indicate pneumatic instrument air pressure, asindicated at ends of scale. 6 inch wideface, easy to read numbers 0-10 ft. H20 / Do not use on oxygen service. Small print on gauge face shows 3 psi to 15 psi next to the 0-10 feet H2O numbers. Shipping weight: 4 lbs.