gas pressure gauge 1 Case with rolling 2 Dial: 1.5" 2", ... Connection size: 1/8" 1/4" 3/8 1/2 gas pressure gauge1) Case: steel with bronze plate2) Dial: 1.5", 2 ... : brass, stainless steeld) Dial and pointer: aluminume) Window: glass, polycarbonate7) Pressure range: vacuum, compound, 0 - 15psi - 10,000psi8) Accuracy: ±1.0 ...