I am building a new shower. I have 2 water supplies, h and c, on each side of the shower area. The 3/4" pair will serve one shower head and 3 body sprays, and the opposite side 1/2" set will supply one body spray and one shower head.(as well as a bar sink on the opp. Side of the wall). I have looked quite a bit at parts, but am still not clear on diverter valves. I want one on each side to allow for the shower head, the body sprays, or both together, what I would call a 3-function valve. Is this correct, or do I need separate on/off control valves for each function? Isn't one combination valve available? Thanks.
George G.

Hey George,

I have this on my own shower, (see image). It's a shower arm stop. If you had a three way diverter would would have to mount and pipe to it. Individual shower head stops are much simpler to install and will do the tasks that you desire. To check them out click on; http://www.accentshopping.com/store/bathandkitchen/showerheads/E8.asp
Good luck Tom