... Pressure Gauges used in Air Compressors 1.ABS /steel case 40--63mm 2.Brass Bottom & Back Connection 3.CE,Rohs Tire Pressure Gauges used in ... Air Compressors,Hollow Pumps,Air-Pressure Piping,Pressure Regulating Values,Testing Equipment, ... 63mm) / 3" (80mm) / 4" (100mm) / 6" (150mm)3. Pressure Range: vacuum, compound, 0 - 15psi - 10,000psi (customer-made ...