GROHE Grohtherm Brushed Cool Sunrise 1.68-in Bathtub/Shower Thermostatic Trim (6.25-in-ID) in the Bathroom & Shower Faucet Accessories department at Lowes.com
Grohe 29137A00 Grohtherm Smartcontrol Dual Function Thermostatic Trim With Control Module | QualityBath.com