Please could you tell me, what type of fitment is on the hose that goes into the bottom of the pressure washer handle gun, for example is it an M20 thread nut or is it a specific attachment for this range? Also is it possible to use a snow foam bottle on this pressure washer?

The fitting on the base of the pistol is M22. The pressure washer is supplied with a foam bottle that can be fitted at the end of the pistol.
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