Abstract: A whirlpool bath device having a valve assembly including a concentric ring and cap for manual control of the water inlet pressure and the flow of air entrained in the water, the cap being spring loaded to afford pressure relief and prevent breakage. The water and entrained air emerge into the tub through a discharge outlet having an adjustable and wear-compensating nozzle provided with a dished flange engageable by the foot of the user for controlling the direction of the output flow through the nozzle.