Pressure Gauge Nominal Dial Size 4 1/2 in Accuracy +/-1 Percent Gauge Case Material Phenolic Process Connection Type NPT Process Connection Gender Male Lens Material Glass Process Connection Size 1/2 in Process Connection Location Bottom Case Color Black Primary Pressure Range 0 to 400 Socket Material 316L Stainless Steel Sensor Material 316L Stainless Steel Series 1220 Application Deionized Water Refrigeration Specialized OEM Equipment