D0994 Vacuum Gauge Gauge Type Oxygen Service Cleaned Dial Size 2-1/2 in (63mm) Range 30 in Hg Vac to 0 Connection Size 1/4 in NPT Connection Location Lower Back Smallest Graduation 0.2 in Hg Accuracy +/-1 Percent Case Material Stainless Steel Socket Material 316SS Tube Material 316SS Lens Material Polycarbonate Ring Material Stainless Steel Operating Temp Range -40 Degrees to 150 Degrees F Series 1009 Manufacturers Warranty Length 5 Years