American Granby ILCG36025-4L SS Case VAC/Press Gauge LiquidFeatures: Stainless steel or black steel caseGlycerine Filled, Phosphor bronze bourdon tubeAccuracy +/- 3-2-3%2” or 2 1/2” Dial face with clear acrylic lensCrimped stainless steel ringFor use in high vibration, corrosion situationsTo Be Used With Air Or Water Only.Stainless steel or black steel caseGlycerine Filled, Phosphor bronze bourdon tubeAccuracy +/- 3-2-3%2" or 2 1/2" Dial face with clear acrylic lensCrimped stainless steel ring