Bar Air Pressure Gauge 13mm 1/4 Bsp Thread 0-180 Psi 0-12 Manometer Double Scale For Air Compressor Iron Diameter About 52mm - Pressure Gauges - AliExpress
Amazon.com: uxcell Back Mount Pressure Gauge, 0-180 Psi 0-12 Bar, 0-1200 Kpa, 1-25/32" Dial Display, 1/4 NPT Male for Air Compressor Water Oil Gas : Industrial & Scientific