Compound Gauge, Process, 4 1/2 in, Basic Gauge Case Material Plastic, Basic Gauge Wetted Parts Bronze, 1/2 in, MNPT, Gauge Connection Location Bottom, -30 to 0 to 100, in Hg/psi, +/-0.50 Percent, Gauge Panel Mountable Yes, Gauge Mounting Method Surface, Liquid Filled Yes, Gauge Primary Range Smallest Graduation 10/10, Gauge Case Material Phenolic/Thermoplastic, Gauge Case Color Black, Calibration Certificate Included No