D0746 Differential Pressure Gauge Gauge Nominal Dial Size 3 1/2 in Basic Gauge Case Material Metal Basic Gauge Wetted Parts PTFE / Buna-N / Viton or EPDM Differential Gauge Connection Type FNPT Differential Gauge Connection Size 1/4 in Gauge Connection Location Inline Differential Pressure Range Units psi Differential Pressure Range Value 0 to 100 Gauge Accuracy +/-2.00 Percent Body Material Aluminum Gauge Primary Range Smallest Graduation 10 Diaphragm Material Buna-N Piston Material PTFE