1/4 NPT regulator is the relieving type and 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. Has a maximum inlet pressure of 250 PSI and offers up to 50 SCFM. Product Features:1/4 national pipe threadMaximum of 250 pounds per square inchMaximum of 50 standard cubic feet per minute at 100 pounds per square inchOperating temperature range of 40 degrees Fahrenheit to 120 degrees Fahrenheit