Kohler RiteTemp 1/2" PressureBalancing Valve with PushButton Diverter for Showerhead and Handshower K-11748-K-NA

This KOHLER® Rite-Temp pressure-balancing valve works behind the scenes to prevent scalding and thermal shock for optimal comfort. Additionally, the unit features a diaphragm design that virtually eliminates freeze-ups from contamination and water debris. When paired with compatible trim, this valve delivers a high-temperature limit stop and an optimal comfort zone, so you can set a maximum high and then find and maintain your desired water temperature.