1/4 FNPT x 1/4 MNPT in line regulator controls air flow to tools, from full flow to complete shut off. May be used as shut-off valve for air and non corrosive liquids. Maximum pressure of 150 PSI. 5 SCFM at 100 PSI. Product Features:Maximum pressure of 150 pounds per square inchAir flow of 5 standard cubic feet per minute at 100 pounds per square inchTemperature range of 40 degrees Fahrenheit to 140 degrees Fahrenheit