... oil gauge is designed for welding, medical, and compressed gas regulator service. Strictly ... 2" or 2.5" 2.Suitable Pressure Ranges:15 psi to 10000 psi3. ... Glycerined(silicon oil) Primary Competitive Advantages:Well and High Quality Control, Prompt Delivery, New ... and Logo are Welcome, Competitive Prices,Variety of Design, Small Order Acceptable, ODM Accepted, OEM Accepted Pressure Gauge TYPE7-BOTTOM ...