Portable Dual Scale Dial Gauge 1/4 NPT -30HG/0PS Vacuum Pressure Meter Gauge Manometer 2 Dial Digital Pressure Gauge - AliExpress

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Portable Dual Scale Dial Gauge 1/4 NPT 1/4 1/8 BSP Vacuum

Buy the manometer at AliExpress for US $11. The pressure gauges are designed to measure pressure of gas and water, liquid which isn't corrosive to

Glycerine Filled Pressure Gauge 2.5 Inch 1/4 NPT Lower Mount 15,30, 60,100,160, 200, 300, 400,600,2000,3000,5000,10000 Psi & Bar

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2inch Dial Size, Multifunction Pressure Gauge, Black Steel Case