SMC®, K50-MP1.0-N02MS, Pressure Gauge, Series: K50, 0 to 160 psi Pressure, 1/4 in NPT Connection, 2 in Diameter Dial. For certificates of compliance, please contact your local Purvis representative. SPECIFICATIONS Series : K50 Pressure Range : 0 to 160 psi Connection Size : 1/4 in NPT Dial Diameter : 2 in