Five piece A style coupler kit includes various couplers and plugs with a 1/4" basic flow size. Milton A style couplers are made of steel and are plated to resist rust, while Milton A style plugs are made up of case hardened steel and are also plated to resist rust. This kit includes one 1/4" FNPT coupler, three 1/4" MNPT plugs and one 1/4" FNPT plug. A style couplers and plugs offer a maximum pressure of 300 PSI and an air flow of 34 SCFM.