Buy Grohe Grohtherm Dual Function Thermostatic Valve Trim Only with Triple Knob Handles and Volume Control - Less Rough In Model:29137A00
GROHE Grohtherm® SmartControl Triple Volume Control Trim | Wayfair
Dual Function Thermostatic Valve Trim
Grohe GSS-Grohtherm-CIR-20-000 Starlight Chrome Grohtherm Thermostatic Shower System with Rain Shower Head, Hand Shower, Shower Arm, Hose, and Tub Spout - Valve Included - FaucetDirect.com