The bosch f016800359 wash brush is designed to fit the aqt high pressure washersthanks to a versatile range of accessories the aqt high pressure washers from bosch are the all purpose solution for all challenging outdoor cleaning jobs the 90deg nozzle allows you for example to remove dirt from gutters or wheel housings without having to contort yourself into awkward positions simply point and apply the suction nozzle to remove puddles or damp patches from your patio