1/4 FNPT D style coupler has a 1/4 basic flow size and is steel plated to resist rust. Has a maximum inlet pressure of 300 PSI and air flow of 34 SCFM. Complete with a Buna-N seal. D style couplers and plugs are ideal for automotive application. Product Features:1/4 female national pipe threadMaximum inlet pressure of 300 pounds per square inchAir flow of 34 standard cubic feet per minuteMaximum temperature of 250 degrees Fahrenheit
