Differential Pressure Gauge Gauge Nominal Dial Size 2-1/2 In. Basic Gauge Case Material Metal Basic Gauge Wetted Parts Stainless Steel / Buna-N Differential Gauge Connection Type FNPT Differential Gauge Connection Size 1/4 In. Gauge Connection Location Back Differential Pressure Range Units psi Differential Pressure Range Value 0 to 10 Gauge Accuracy +/-3-2-3 Percent Body Material Aluminum Gauge Primary Range Smallest Graduation 0.5 Piston Material Stainless Steel