MIS-711 Features: -M-style coupler bodies are brass with brass sleeves.-M-style plugs are case hardened steel, plated to resist rust.-Maximum inlet pressure: 300 PSI.-Maximum temperature: 250 degrees F.-M-Style 1/4"" Combination Coupler/Plug Kit. Includes: -Air flow: 40 SCFM Kit includes (1) #715 1/4" NPT female M-style coupler and (1) #727 1/4" NPT male M-style plug. Milton M-style "Kwik-change" couplers and plugs will interchange with all manufacturers who comply with the dimension requirements of military specification MIL-C-4109. . Warranty: -1 yr warranty on material and workmanship.