Pressure Gauge 0/300 PSI & 0/20 Bar 50mm Dial 1/4 BSPT Bottom connection. | eBay
Suction Pressure Guage Model GES, Direct Mounting type, Range: -30in Hg- 300psi/ -1-20bar(Dual scale type psi & bar), Dial size: 100mm, Full SS, 1/4"NPT Bottom Connection, with liquid filled - MASS | Union