Air compressor Manometer Pressure Gauge 1.Steel case,ABS case,SS case 2.Dial ... are used in Air Compressors,Hollow Pumps,Air-Pressure Piping,Pressure Regulating Valves,Testing Equipment,Medical Sterilizers,etc 1. Case :ABS, ... : vacuum, compound, 0 - 15psi - 10,000psi (customer-made pressure range)4. Connection: Bottom (Vertical), Center Back (Horizontal), Lower Back,5. Connection Size ...