The AcuTherapy JetPak provides a comination of a targeted deep tissue and a firm intensity hot tub hydromassage specifically engineered to target and relax areas of the back and shoulders that harbor tension. Learn more: www.bullfrogspas.com/listings/custom/129/45/acutherapy The JetPak Therapy System by Bullfrog Spas is the only modular hot tub jetting system that can be personalized specifically for you. You choose your jetting configuration, intensity, and the spa seat in which you prefer to place each JetPak. See more at: www.bullfrogspas.com/jetpaks