Comes with two oetiker clamps. I don't have the tools to properly close them, so I went to a professional pneumatic hose service to have the hose installed. He used one oetiker clamp on the end fitting the chuck. But said that the other clamp was too small to fit over the end connecting to the pump. He used another clamp and it is working fine. At the end of the day: Labor + material = USD$ 20.00. Money well spent in that it was done right the FIRST time!