A truly effective product, I plugged my Karcher K4 (remember to change the nozzles with the supplied gray) and then I attacked the cleaning of the terrace (120 m2) and there is happiness, more need as before to bend down to go spear karcher cm per cm, the brush is provided with two extensions and it is really effective, time divided by 4 for a same result. In addition, contrary to the lance, the brush does not take off the joints between the slabs. IF you need to clean your deck, I recommend more strongly that it becomes no longer a chore.
