Improved accuracy to asme b40.1 grade a.
2-1/2" diameter pressure gauge. ambient temp 30 f to 160 f Pic Gauges 2 1/2" Pressure Gauge, Liquid Filled, 160 PSI, SS Case, Center Back Mount, PRO-202L-254F Glycerine filled for added durability during in application. features 0/160 psi stainless case brass internals 1/4" npt center back mount glycerine filled pressure gauge polycarbonate lens accuracy 2-1-2%.