I have my shower stall down to the studs for remodeling. Figure now is the time to install new valve. Don't know what type I had. It was a Moen but very old, it was in the house when we bought it 15 yrs ago. Try searching net but was confused by all the different manufacturer's types of valve choices, seems like each manufactuer has several different choices. Which shower valve is best for low volumn, low pressure? (We have a well and by the time it runs the all the conditioning systems there is not much left.) And don't worry I am not going to install myself. I am going to have a plumber do it once I can find one. (It's hard in here in central Florida with all the new construction) The guy that is doing the rest of the work is no help on this subject. Thanks!