Grohe GSS-Grohtherm-CIR-17-A00 Hard Graphite Grohtherm Thermostatic Shower System with Shower Head, Hand Shower, Shower Arm, and Hose - Valve Included - Faucet.com
Grohe 29078001 BauEdge shower mixer for concealed installation
GROHE 14468000 Concetto Shower Valve Trim Kit with Pressure Balance Cartridge, Starlight Chrome - Amazon.com
Concealed Mixer 3 Valves - SmartControl from Grohe