GROHE SmartControl Concealed Thermostat 3 Button Square Chrome from Reece
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 26511000 Euphoria SmartControl Mono Shower System with Thermostat for Wall Mount, Starlight Chrome : Everything Else
Grohe Grohtherm SmartControl thermostat with 3 shut-off valves (29126000) New 4005176413322 | eBay
Grohe Grohtherm SmartControl thermostat with 2 shut-off valves and integrated shower bracket - 29125000 | REUTER