Industrial Vacuum Gauge Nominal Dial Size 2 1/2 in Accuracy +/-2-1-2 Percent Gauge Case Material Stainless Steel Process Connection Type NPT Process Connection Gender Male Lens Material Polycarbonate Process Connection Size 1/4 in Field Fillable No Process Connection Location Bottom Case Color Metallic IP/NEMA Rating Not Rated Primary Pressure Range 30 to 0 Dry Dampening Feature None Vibration Resistance Liquid-Filled Dial Color White Pressure Gauge Type Industrial Pressure Gauge