PIC Gauge PRO-204L-254N Glycerin Filled Industrial Front Flanged Panel Mount Pressure Gauge with Stainless Steel Case, Brass Internals, Plastic Lens, 2-1/2" Dial Size, 1/4" Male NPT, 0/1500 psi Industrial Pressure Gauge Stainless Steel Case, Brass Internals, Stainless Steel Bezel, and Polycarbonate Lens An inexpensive utility gauge for the broad commercial and industrial markets. Suitable for air, water, oil, gas or any other media not corrosive to brass.