This is a new adapter to suit some Ryobi and Ozito Models recently released. Some (not all!) models of Ryobi and Ozito. This is a short flatter adapter. We don't know why Ryobi and Ozito decided to change their fittings for some recent models, but they did, and this is the adapter that fits it. We have been into bunnings and tested them, see photos. Please check your fitting before ordering. Again, there are different fittings for different Ozito and Ryobi water blaster, please visually check your machine before ordering. Make sure you are looking in the right place, this connects to the trigger section, not half way down the lance or at the end of the lance.