Abstract: A tub for subaqueous massage has a bottom that is upwardly convex in the region of the lower limbs and upwardly concave in the region of the hips and back. Armrests are provided, and a divider between the legs. Inlets for mixed air and water are provided on the sides and on the bottom and on the divider. The inlets are recessed either in individual recesses or in grooves common to a plurality of inlets. Air under pressures entrains the water, or vice versa. Individual valves are provided for selectively actuating the water and/or air in a plurality of regions of the tube thereby to select the regions of the body to be treated.