1/2 MNPT G style couplers are used in applications that require over 60 SCFM. There are two Milton G style couplers, but both will function the same with G style plugs. G style couplers are the highest SCFM rated coupler. Product Features:1/2 Basic flow sizeMaximum inlet pressure of 300 pounds per square inch1/2 male national pipe threadAir flow of 99 standard cubic feet per minute
