Uniweld G8S Gauge with 0-600 PSI and 1/4-Inch NPT Bottom Mount Gold Steel Case, 2-Inch: Home Improvement. Buy Uniweld G8S Gauge with 0-600 PSI and 1/4-Inch NPT Bottom Mount Gold Steel Case, 2-Inch: Gauges - ✓ FREE DELIVERY possible on eligible purchases. 2 Inch Gauge, 0-600 PSI, Gold Steel Case 。 1/4 Inch NPT Bottom Mount Brass fitting that is corrosion resistant 。 Oxygen cleaned welding gauge per (ANSI B401) 。 Suitable for oxygen, nitrogen, fuel gases and medical equipment 。 Recommended for use with compressed gas regulators 。 Product Description G8S - 2 Inch Gauge, Pressure Range (PSI) 0 to 600, Smallest Graduation 20 PSI, Accuracy (-Percent) +/--2- per A.N.S.I. B40. Grade B, Gold Steel Case, /4 Inch NPT Brass Bottom Mount Connection. Oxygen cleaned welding gauge per (A.N.S.I. B40.) suitable for use with oxygen, nitrogen, fuel gases and medical equipment which are non-corrosive to brass or bronze. Recommended Part No. GB20S 2 Inch Protective Rubber Gauge Boot. Recommended for use with compressed gas regulators. 。 From the Manufacturer G8S – 2 Inch Gauge, Pressure Range (PSI) 0 to 600, Smallest Graduation 20 PSI, Accuracy (%) +/--2- per A.N.S.I. B40. Grade B, Gold Steel Case, /4 Inch NPT Brass Bottom Mount Connection. Oxygen cleaned welding gauge per (A.N.S.I. B40.) suitable for use with oxygen, nitrogen, fuel gases and medical equipment which are non-corrosive to brass or bronze. Recommended Part No. GB20S 2 Inch Protective Rubber Gauge Boot. Recommended for use with compressed gas regulators. 。 。 。