Jason hydrotherapy tub systems work with your desire for maintaining a healthy lifestyle. Jason hydrotherapy tubs are Design to cradle your body in its optimally relaxed position, allowing joints and muscles to settle into their most relaxed or "loose pack" state. Choosing a Jason Whirlpool or Air Bath Massage for simple relaxation to improved circulation to deep, soothing therapy for tired, aching muscles, bathing with hydro-massage can have so many healthful benefits.