One Volume control is needed for each outlet. With this system you can control the volume precisely and you can use all outlets at one time.
With this system you can use one outlet at a time.
2 Function Diverter
Controls between 2 functions. Mostly used as a tub/shower control, it can also be used with two shower functions.
3 Function Diverter
One 3 way diverter controls up to 3 outlets and has a stop (off position)
For Water Temperature
Pressure Balance Mixer
Pressure balancing valves balance incoming hot and cold water pressure to compensate for fluctuation in water flow. Usually used to control a single outlet without the need for a volume control or multiple outlets through a diverter
Thermostatic valve allows users to select a favorite temperature and keep it there regardless of changes in the temperature of the hot or cold water supply. It has a sensor that reacts to changes in temperature caused by either pressure or inlet temperature changes.