GROHE SmartControl - Concealed Mixer for Shower or Bath (2 Valves, Square Shape, Set for Final Installation for GROHE Rapido SmartBox, Push for ON-OFF, Turn for Volume Adjustment), Chrome, 29148001 - - Amazon.com
GROHE Grohtherm® SmartControl Single Function Thermostatic Trim with Control Module | Wayfair
GROHE Grohtherm® SmartControl Triple Volume Control Trim | Wayfair
Smart Shower Controller
Smart Shower Control
GROHE smartcontrol shower pairs intuitive design with intelligent technology
GROHE Grohtherm® SmartControl Triple Function Thermostatic Trim with Control Module & Reviews | Wayfair