Compound Gauge, Gauge Type Liquid Filled, Dial Size (In.) 2-1/2, Range 30 Hg Vac to 60 psi, Dial Size (mm) 63, Connection Size 1/4 NPT, Connection Location Lower, Smallest Graduation (PSI) 2, Smallest Graduation (In. Hg) 5, Graduations 10 psi,...