Look up Hansgrohe Universal ibox - first of all, you will get a thermostatic valve instead of a pressure balance valve, thermostatic doesn't impact the GPM (gallons per minute) that the pressure balance does. Here is some hansgrohe info. and only will require you to have trim for this universal box - no additional trim needed. There are various options for configuration but I'm looking on page 16 of the "installation instructions" part No 90111601 and I'm reading "modify the diverter to allow simultaneous use of both functions". This came with my Hansgrohe trim - part number 04231xx0. I'm obviously a bit of a newbie but hopefully this info helps you understand that what you want can be done. I would go with hansgrohe for any shower fixture because their fixtures are famous for minimizing any restriction on the flow. You of course always want the option of having the maximum flow. Good luck. Hopefullly the experts will kick in here with more/better details if you need it. I bought my universal Ibox from a plumbing showroom and the salesman was helpful in explaining my options and what I could have done. Not much more expensive than buying on line. Here is a link that might be useful: see page 16 of this installation guide for hansgrohe trim 4231 This post was edited by elphaba on Sat, Jul 6, 13 at 21:39

Although, we are re-doing a bathtub/shower, and I am replacing it with showerhead, handshower and tub spout, and had to get all the pieces separately (didn't care for the Symmons styles). We are going to use a delta pressure balanced valve (but it has separate handles on one valve, one for water volume and one for temperature), and then a diverter (to go to either tub, shower, or handheld). The rest of the parts are going to be Grohe, but they are all from different style lines (yeah, it sounds like Frankenstein but I don't think it will look that bad).

Glad the threads you read were of help. Easiest, and often times the most user-friendly, is two supply valves, one for each head. With two bathers, each can select their own water temp. In general, that can be achieved most economically by using two two pressure balance valves at an economical price. Diverter valves and their trim can often be as expensive as a supply valve and its trim. Obviously you can price things out through the manufacturer of your choice: -Two individual supply valves and their trim. -A single supply valve and its trim plus a diverter and its trim. When you get into diverters, then you have all sorts of choices...the diverter can supply one head OR the other, but NOT BOTH simultaneously...OR it can supply one head OR the other, as well as BOTH simultaneously. As you wrote, with a PB valve you may not get temperature control at any volume. Volume control at any water temp can be of value, it depends on how you use your shower. To do that, you're right, it can be accomplished with a thermostatic valve. To be fair, there are some PB valve that offer that as well, you'd have to shop around to find one. But for the most part, PB valves at low flow will only give you cold water. My own shower, we have two PB valves that supply two individual heads. I do like the ability to have different water temps out of the two different heads. You're certainly on the right track. It's simply a matter now of balancing features versus budget, etc.

Hi dmosunich, I personally use this Waterpik hand-held shower head when the old shower head stopped functioning. It works for my needs. Not fancy by any means but definitely am happy with the multi-spray options that the old fixed shower head could not provide. The criteria for me was that the shower head had to be bigger and wider, and have the ability to detach and have a long enough hose to move freely. This Waterpik fit all of that plus it had multiple spray patterns which was definitely a plus. Can't speak for its durability as it is made of plastic with an exterior metal-like shell (most likely a type of acrylic that looks like metal) but I've had it for about 2 months now and so far so good. Hope this helps. Very Best, Tai Truong Elements of Design 3400 Medford Street Los Angeles, CA 90063 tai@lusivedecor.com www.elementsofdesign.com