PIC Gauge S201L-254A 30"-0 hg Vacuum PSI Pressure Gauge, 2 1/2" Dial, 1/4" Male NPT Connection, Bottom Mount, Single Scale, Glycerin Filled, Stainless Steel Case/Bezel, Brass Internals & Plastic Lens. Measures air pressure, water pressure, fuel pressure, gas pressure, oil pressure, anything not corrosive to brass. Accuracy is 2-1-2% of span and works from 30 to 160 degrees F. Liquid filled for added durability in applications where vibration is present. Stainless steel case and bezel, copper alloy internals. ¼” Male NPT Bottom Connection. 30" to 0 hg Vacuum PSI Pressure Gauge, Single Scale, 2.5” Dial. Ideal for pumps and compressors. Our PIC brand offers the largest selection of pressure and temperature instruments in the industry.