The beauty. The new Grohtherm Cube collection of minimalist thermostats sets a new standard in design for true geometric direction. Focused on the aesthetic preferences of modern cosmopolitans, this collection enables bathroom furnishings in a progressive geometric style at an affordable price. Mind. Grohtherm Cube thermostats are equipped with the most advanced precision cartridges in the industry with GROHE TurboStat® technology. By increasing the sensitivity of the thermocouple, we have now ensured that our thermostats now react twice as fast as before to fluctuations in the water pressure in the system, which ensures even greater safety and comfort when bathing and showering.