MiltonÕs 1/4" NPT Standard Pressure Regulator offers a stable downstream air pressure over a wide range of air flows with accurate control, fast response time, and minimal pressure drop. Offset gauge ports can also serve as two 1/4" supply lines. The aluminum die cast body comes with a balanced piston and molded rubber seat. As a standard pressure regulator, the 1/4" NPT Regulator has a maximum inlet pressure of 250 PSI with a regulated pressure range of 5-125 PSI.