I see an attachment without a container and it does not come with anything else because it simply works with the existing cleaning containers you already have, that's why if you don't have a container, you prefer the complete set. The yellow button on the side makes a difference. On 23/11, personally, I got the attachment with the container, you open the valve all the way and the liquid sticks everywhere, all white, liquid for stone.

The nozzle came without a container and without a cleaning liquid. Also, for older Karcher washing machines before 2010, the "Karcher Adapter M 2.643-950.0" is required because otherwise it does not lock onto the gun. On the positive side, the one-liter containers with Karcher's cleaning agents and foams easily and quickly fit in and out by pressing the yellow button on the base of the device.