From factory air line to pneumatic tool
connection, available in various body
materials, sizes and end configurations.
Excellent durability.
Excellent general purpose coupling for connecting factory air supply to pneumatic tools.
Steel coupling suitable for air.
Note that fluid will come out from the plug when disconnected.
Critical structural parts of steel models are heat treated for increased strength giving greater durability and resistance to wear. 
Available in various body materials sizes and end configurations applicable to wide range of applications.