Milton (S-716) 1/4" Male NPT M Style (Industrial) Air fitting Quick Connect Coupler M-STYLE: The industry standard coupler. Milton M-style, ColorFit M-style, + red competitor couplers/plugs are all compatible. KWIK-CHANGE: Interchangeable/compatible with most manufacturers. Compliant with military specification MIL-C-4109. NPT: 1/4" male national pipe thread flow size. Durable brass. Buna-N seals. MAXIMUM: 40 standard cubic feet per minute (SCFM). 300 PSI inlet pressure. Temperatures up to 250 degrees F. INCLUDED IN MILTON M-STYLE KITS: #S-221, S-222, MK1669-1, 683-MCPK. The industry standard M style coupler 1/4" male national thread pipe Kwik Change couplers will interchange with most manufacturers Maximum working pressure of up to 300 pounds per square inch Maximum recommended temperature of 250 degrees Fahrenheit