Grohtherm Cube Two Handle Single-Function Thermostatic Valve TrimFrom its artful cube profile to its intuitive operation, the Grohe Grohtherm Cube two handle single function thermostatic trim with control module lends clean, geometric lines to a contemporary bathroom. Thoughtfully designed for comfort and enjoyment, Grohtherm features an upper handle to control volume and on off, a lower handle to control temperature, Grohe Turbostat to maintain consistent temperature, and Grohe SafeStop to prevent scalding. It's