If you install this valve the way the rough in tells you too, you will be very disappointed. Our valve trimmed out perfect and this transfer valve was to far back in the wall. And of course they don't make an extension for this. We had to cut open a tile wall on the other side of the valve to offset this valve above the shower valve causing us to look bad. Also install the cartridge at rough, good luck trying to remove the bonnet nut when it is an 1/8 inch behind the finished wall.