Ashcroft Compound Gauge, 2" Dial, 1/4" NPT Male Thread, 30-0-30 Hg/PSI, Back Mount, Accurate to 1% of Scale, Stainless Steel

General Purpose, 2 in, Basic Gauge Case Material Plastic, Basic Gauge Wetted Parts Brass / Bronze, 1/4 in, MNPT, Gauge Connection Location Center Back, -30 to 0, in Hg, +/-3-2-3 Percent, Gauge Panel Mountable No, Liquid Filled No, Gauge Primary Range Smallest Graduation 0.5, Gauge Case Material ABS Plastic