PIC Gauge 204L-204D 2" Dial, 0/60 psi Range, 1/4" Male NPT Connection Size, Front Flanged Panel Mount Glycerine Filled Pressure Gauge with a Stainless Steel Case, Brass Internals, Stainless Steel Bezel, and Polycarbonate Lens Front Flanged Panel Mount Design Stainless Steel Case and Bezel Brass Internals and Connection Phosphor Bronze Bourdon Tube Liquid Filled