What is the brand of the shower system? Is it a thermo controlled valve? Thanks

The shower valve is made by Kohler. The lower one is a regular volume control and the higher one is called "Mastershower" K-728 Three-Way Transfer Valve. You can turn on either tub, rain head, or hand shower -- or any combination without having three separate volume control knobs. The outlet closest to the tub spout is for the steam shower and separate from the Kohler valve. Thanks, Kate

help this is exactly what im trying to do but the 3 way divertr from hansgrohe shows 2 options 1 says 3 way in and what says three way stop do i need both ? the main volumevalve to turn water on is a plain pressure balance/thermostatic valve or does the three way serve as the one and only valve to tub to handeld or to overhed?

Not sure that I understand your question, but I needed both devices in order to get all the combinations of having either tub, hand-held, rain head or any two combined. So the pressure balance valve AND the three-way diverter. You could get the same effect by piping in three separate volume control valves after the pressure balanced valve or get a pressure balance valve with a tub/shower diverter and then do two separate volume controls off the shower side. Thanks, Kate

Where can you buy this?