... 1.Stainless Connection 2.Glycerine Fillable,SS Case 40-150MM 3.Competitive Price,Steady Quality with CE Ro Stainless Steel Pressure Gauge ... , 4"/100mm,6"/150mmCase:Stainless Steel 304Stainless Steel 304,Steel case with chromed ringFluid filled:Glycerine,Silicon\Window:Polycarbonate, GlassPolycarbonate, GlassDial:AluminiumAluminiumDial ...