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. MultiChoice Universal valve body only. Cartridge ships with trim. 1/2 Inch PEX crimp connections and 1/2 Inch universal outlets with male threads Back-to-back capability WS = with stops MultiChoice(R) Universal Tub/Shower Rough with PEX Connections and Stops