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Milton S728 M Style Plug (1/4 F,2/Cd)
Hardened steel balls
Stainless-steel springs
Heat-treated and plated
Made in the USA
These plated steel couplers have hardened steel balls and stainless-steel springs. The plugs are heat-treated and plated to reduce wear on critical mating surfaces. M style plugs have a 1/4" basic flow size and air flow of 40 SCFM. These plugs have a maximum pressure of 300 PSI. All threads are NPT. Made in the USA.