PIC Gauge 202L-158M 1.5" Dial, 0/1000 psi Range, 1/8" Male NPT Connection Size, Center Back Mount Glycerine Filled Pressure Gauge with a Stainless Steel Case, Brass Internals, Stainless Steel Bezel, and Polycarbonate
Amazon.com: BTMETER Manometer Gas Pressure Meter, Dual Port Manometro Pressure Differential Gauge Check Air Flow Pressure for HVAC Gas Furnace, Digital Manometer w/Backlight 12 Measure Units QX-1201 : Industrial & Scientific
0-30psi Manometro Di Pressione D'Aria 0-2bar Manometro Idraulico A Bassa Pressione Manometro A Doppia Scala 1/8"BSPT : Amazon.it: Commercio, Industria e Scienza
Amazon.com: 1/8 BSPT Bottom Connection Vacuum Pressure Gauge Dual Scale 50mm Dial Display Air Water Oil Gas Gauge Meter(0-30psi 0-2bar),Pressure Gauge : Industrial & Scientific