Pressure Gauge dia.:40mm,50mm 1) Pressure gauges are suitable for pumps 2) Specifications: 1.5', 2', 2.5', 4', 6' Pressure Gaugepressure gauge suitable for water pump,can ... ) Pressure gauges are suitable for pumps2) Specifications: 1.5', 2', 2.5', 4', 6'3) Axial 4) Metal cover and plastic cover Pressure Gauge for ...