M-Style coupler and plug kit includes one 1/4″ FNPT coupler and one 1/4″ MNPT plug. Made up of a brass body, brass sleeve coupler and steel plug. With a 1/4″ basic air flow size and air flow of 40 SCFM, this coupler and plug combination has a maximum pressure of 300 PSI and a Buna-N seal.
