New & Boxed - Grohe Grohtherm SmartControl Round Thermostat 3 Outlet - 29121000 Switch effortlessly between different showering options by simultaneously running multiple outlets. Just bring home this Grohe Grohtherm SmartControl Thermostat with 3 Valves. The smart knob allows you to adjust your desired water temperature for a refreshingly warm shower. QuickFix installation system lets you install this unit in 50% lesser time. For protecting your family from scalding, this unit features a SafeStop button which automatically stops the water temperature from exceeding 38°C. This unit comes with five years manufacturer warranty against any manufacturing faults.