Used to control the flow of water through a shower handspray or rainshower. Shower mixers mix hot and cold water to give the desired flow rate and water temperature from a single outlet. There are single lever or dual control versions where either one or two controls are used to vary the flow rate and temperature. A diverter can be added to allow the control of more than one outlet, such as a rainshower and handspray. Self-closing mixers which automatically turn off after a predetermined time and sensor showers which automatically turn on and off are also available.