CSE Sanitary Pressure Gauge Material: Stainless Steel Range: 0-100 PSI Oil Filled 3 1/4 Face. This is a new surplus item, it is unused. The oil has seem to deteriorate the face of the gauge a small amount (why the oil appears dark and gloomy) but gauge still works great it was just in storage for a long period of time. Powered by SixBit’s eCommerce Solution.