The invention relates to a water distribution device (1) for a shower installation, comprising: a distribution head (12) comprising at least two groups of water ejection nozzles (14, 16, 18), each group of nozzles (14, 16, 18) being connected to at least one respective distribution channel; a supply channel; a jet selection device (20), interposed between the supply channel and each of the distribution channels, the selection device (20) comprising an internal body (20a) of spheroidal shape, the internal body (20a) being arranged in a housing of complementary shape formed in a body (10) of the distribution device, the internal body (20a) being movable in rotation about two perpendicular axes, between a plurality of distribution positions, each distribution position making it possible to put the supply channel and at least one distribution channel in fluid communication, the selection device (20) comprising a control element (20b) secured to the internal body (20a), the control element (20b) being operable by a user in order to modify the position of the internal body (20a).

A spray wand includes: a hollow tubular main body; a nozzle mounted on the output end of the main body; and a valve assembly configured to mount the input end of the main body. The valve assembly includes: a housing having an input conduit for coupling the valve assembly with a fluid source; a sealing piston biased within the input conduit toward a sealing position thereof, and a valve core having a column rotatable within the interior space of the housing and a handle extending from the column, the valve core being rotatable between at least one open position corresponding to an open condition of the valve assembly and at least one closed position corresponding to a closed condition of the valve assembly. Upon rotation of the column to at least one open position thereof, the sealing piston biased within the input conduit is pressed from the sealing position.