A brush for cleaning articles like bottles includes a hollow handle and a brush body connected to the latter and having a plurality of bristles. The brush body accommodates a passage through which the fluid flows and is provided with a plurality of slots radially extending from the passage in one plane. Cooperating with the slots is a deflector which has a rim portion extending beyond the plane of the slots so that the fluid after flowing through the handle and the passage is discharged through the slots and deflected onto the bristles at an acute angle with respect to the center axis of the brush.