Amazon.com: 50 mm / 2 Inch Mini Dual Scale Vacuum Pressure Gauge Meter 0~-30inHg / 0~-1bar Manometer 1/4'' BSPT Center Back Mount with Brass internals for Water Oil Gas : Industrial & Scientific
Vacuum Pump Gauge, 30-0 "Hg | pdblowers, Inc.
Dixie Canner Co. | Products | Parts | Vacuum/Pressure Test Gauge
2.5" Vacuum Gauge 0 to -60"WC / 0 to -4"Hg, Bottom Mount
Ideal Vacuum | Bourdon Needle Dial Vacuum Pressure Gauge With 1/4 inch NPT Male