The hand shower consists of a handle (10) made of molded plastic, longitudinally crossed through by a channel connected on the one end to a shower sprinkler (13) and on the other end via a flexible tubing (14), to a supply battery and by a stopping device (12) comprising a piston (16) movable in a transverse boring provided in the body of the handle (10). By exerting digital pressures on the extremities of the piston - with the thumb or the forefinger of the hand holding the handle - the piston can be brought into a first extreme position for which the channel is closed and into a second extreme position in which the water can flow towards the sprinkler (13). The piston (16) comprises two metallic parts (18, 19) screwed together and the stops limiting its stroke, formed by shoulders (21) on these two pieces.