The MultiChoice® Universal rough works with any Brizo pressure balance or TempAssure® Thermostatic shower trim. Once it is installed, it is easy to update the shower experience or update its style at any time, without having to go behind the wall. Brizo® Tub and Shower Rough-In Valve, 1/2 in MNPT Inlet Connection, 1/2 in FNPT C Outlet, For Use With: MultiChoice® Universal Single or Dual Function Trim, Thin Wall Mount, Forged Brass Body, 5-1/16 in W x 4 in H, Domestic