Abstract: A neck jet pillow for a spa or whirlpool tub removably mountable. The pillow has a soft membrane area occupying a central portion thereof, a first mounting member fixedly mountable onto a fluid jet, a second mounting member fixedly attached to the pillow and slidably and removably mountable onto the first mounting member, and a hole in the second mounting member coinciding with the membrane area whereby the jet can direct a fluid stream onto the backside of the membrane area. The first and second mounting members, when mounted together and onto the pillow and jet, define a water-tight cavity there between having a jet inlet and a discharge opening whereby spent fluid from the jet is discharged downward into the tub or spa. The mounting members may be sliding members.

Abstract: A neck jet pillow for a spa or whirlpool tub removably mountable. The pillow has a soft membrane area occupying a central portion thereof, a first mounting member fixedly mountable onto a fluid jet, a second mounting member fixedly attached to the pillow and slidably and removably mountable onto the first mounting member, and a hole in the second mounting member coinciding with the membrane area whereby the jet can direct a fluid stream onto the backside of the membrane area. The first and second mounting members, when mounted together and onto the pillow and jet, define a water-tight cavity there between having a jet inlet and a discharge opening whereby spent fluid from the jet is discharged downward into the tub or spa. The mounting members may be sliding members.

Abstract: A bathtub having a water pump and heater for heating and circulating water from the bathtub to at least one mixing chamber, an air blower and heater for delivering heated ambient air to the mixing chamber, and a plurality of orifices for delivering an air-water mixture from the mixing chamber to the bathtub. A wall of the mixing space may be associated with a wall of the bathtub, and the orifices may be in the wall providing direct fluid communication between the mixing space and the tub. The invention provides improved thermal stability and eliminates evaporative cooling effects in air-injected tubs.