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. Features MultiChoice® Universal valve body only. Cartridge ships with trim. 1/2" universal inlets accept 1/2" copper, 1/2" iron pipe, PEX or CPVC adapters 1/2" universal outlets, inlets/outlets have male threads. Back-to-back capability. BX = single box model; WS = with stops BX = single box model WS = with stops Extension kit available. See trim model for details.