... diameter:1.5",2",2.5",3",4",6". Panel Mount Stainless Steel Liquid Filled Glycerine Pressure Gauge 1. Diameter: 1 ... .Scale:psi,bar, Mpa, Kpa, kg/cm2,Hg Single or dual scale or according to customers order.9.Oil composing:glyceine ... , silicone oil;10.Accuracy: 2.5%,1.6%,1%. Panel Mount Stainless Steel Liquid Filled Glycerine Pressure Gauge