Grohe Grohtherm Cube Dual Function 2-Handle Thermostatic Valve Trim - 24158Grohe Grohtherm Cube Dual Function 2 Handle Thermostatic Valve Trim 24158 Contemporary thermostatic shower trim with geometric styling, integrated diverter control, and precise temperature management. Features Dual function thermostatic valve trim with integrated control module Upper handle includes integrated 2 way diverter for switching between two shower outlets Lower handle controls water temperature GROHE TurboStat maintains consistent water