D0756 Differential Pressure Gauge Gauge Nominal Dial Size 2 1/2 in Basic Gauge Case Material Metal Basic Gauge Wetted Parts Buna-N Differential Gauge Connection Type FNPT Differential Gauge Connection Size 1/4 in Gauge Connection Location Back Differential Pressure Range Units in wc Differential Pressure Range Value 0 to 50 Gauge Accuracy +/-3-2-3 Percent Body Material Aluminum Gauge Primary Range Smallest Graduation 2 Diaphragm Material Buna-N Seal Material Buna-N