Air compressor Manometer Pressure Gauge 1.Steel case,ABS case ... SS connection 4.Glycerine fil Air compressor pressure gauge are used in Air Compressors,Hollow Pumps,Air-Pressure Piping,Pressure Regulating Valves ... 50mm) / 2.5" (63mm) / 3" (80mm) / 4" (100mm) / 6" (150mm)3. Pressure Range: vacuum, compound, 0 - 15psi - 10,000psi (customer-made pressure ... Detachable bezel7. Accuracy: 3-2-3%, 2.5%,1.6%, 1%