1 Pc) Water Pressure Gauge Liquid Filled 0-150 PSI Back Mount (U-Clamps) 1/8" tube Water Oil Gas Air (1-G011514) Available Connection Sizes: 1/4" Tube or 1/8" NPT if Nut is Removed Available Dial Sizes: 1 1/2" General Specifications: Stainless Steel Case and Bezel, Brass Socket and Movement, Phosphor Bronze Bourdon Tube Liquid Filled Accuracy: Standard = 1.6% Dial Scale: Dual Scale- PSI & Bar (x100=kPa) Ambient Temperature: Filled 30'F to 160'F