Grohe 34150000 GrohTherm 1000 Thermostatic Shower Valve GROHE StarLight finish for scratch and tarnish-resistant surfaces for a lifetime of beauty. GROHE TurboStat technology delivers water at a desired temperature within a fraction of a second and keeps it constant for the duration of the shower. SafeStop at 1F / 38C Exposed valve 6 distance between hot and cold water inlet