2-1/2″ Pressure Washer Pressure Gauge Kit, 3/8 Inch Quick Connect, 5000 psi Pres by | Jul 22, 2026Pressure Washer Diagnostics. The gauge is filled withglycerin oil, helping reduce needle vibration caused by pressure fluctuations. Extended gauge lifespan. Universal 3/8″ Quick Connect Fittings. Pressure Monitoring.
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