The method comes along with two threaded hoses which take the water to and from a plunge tub. You need to use this system with any tub by both securing the threaded hoses on to the sides of your tub (If the tub has threaded connections) or by simply submerging https://simplem.app/606c6a054f48ed73699f9f12/c/renu-therapy/i/606c6ad74f48ed73699f9f17