K4539 Panel-Mount Vacuum Gauge Nominal Dial Size 2 in Accuracy +/-2.5 Percent Gauge Case Material 304 Stainless Steel Process Connection Type NPT Process Connection Gender Male Lens Material Polycarbonate Process Connection Size 1/8 in Field Fillable Yes Process Connection Location Center Back Case Color Metallic IP/NEMA Rating IP65 Primary Pressure Range 30 to 0 Dry Dampening Feature None Vibration Resistance Field-Fillable Dial Color White