This high quality Pressure Washer Adapter is a genuine Karcher part.

Use this adapter to connect old gun triggers (Guns M, 1996-1997) to the new styles of spray lances made in 2017 onwards.

To tell if you need this adaptor simply look at your trigger gun if your gun does NOT have a yellow push button or a yellow clip in front of the trigger guard and you are wanting to use the new style of lance then you will need this adapter.