Grohe Grohtherm 1000 Showers The usual Grohe technology and finish at an economical price. GROHE 345577000 Grohtherm 1000 Exposed Thermostatic Shower Mixer complete with sliderail £277.09 RRP: £390.83 GROHE 34439003 Grohtherm 1000 Exposed Thermostatic Bath/Shower Mixer £256.52 RRP: £362.73 GROHE 34143003 Grohtherm 1000 Exposed Thermostatic Shower Mixer £193.30 RRP: £290.40