From factory air line to pneumatic tool connection, available in various body materials, sizes and end configurations. Excellent durability. s!NEXCELLENTGENERALPURPOSECOUPLINGFORCONNECTINGFACTORYAIRSUPPLYTO pneumatic tools. s3TEELCOUPLINGISSUITABLEFORAIR"RASSORSTAINLESSSTEELARESUITABLEFOR water. Note that fluid will come out from the plug when disconnected. s#RITICALSTRUCTURALPARTSOFSTEELMODELSAREHEAT TREATEDFORINCREASED STRENGTHGIVINGGREATERDURABILITYANDRESISTANCETOWEAR s!VAILABLEINVARIOUSBODYMATERIALSSIZESANDENDCONFIG