Vacuum pressure compound Gauge,automoible gauge Vacuum pressure compound Gauge,Vacuum Gauge,vacuum pressure gauge,Vaccum and compund Gauge,automoible gaugeDiameter: 1-1/2", 2", 2-1/2", 3", ... /4", 3/8", 1/2", NPT ,BSPT, BSPConnection: bottom connection, center back male connectionAccuracy: 2.5%Scale: psi, bar, Mpa, Kpa, ... or dual scale or according to customers order Vacuum pressure compound Gauge