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
GROHE Grohtherm Smart Control Triple Function Square Thermostatic Trim with Control Module in Starlight Chrome 29142000 - The Home Depot
Flow Control
Grohe 24133EN0 Brushed Nickel Grohtherm Dual Function Thermostatic Valve Trim Only with Double Knob Handles, Integrated Diverter, and Volume Control - Less Rough In - Faucet.com
GROHE Grohtherm Smart Control Single Function Thermostatic Trim with Control Module in Hard Graphite (Valve Not Included) 29136A00 - The Home Depot