This 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. Rite-Temp┬¼┬¿ΓêÜ├£ pressure-balancing diaphragm design. Pressure-balancing mechanism of one-piece diaphragm cartridge design for ease of maintenance. Mixing valve cycles from "cold" to "hot". Integral diverter mechanism. High-temperature limit setting for added safety. Less screwdriver stops. Designed for showerhead and handshower applications. Brass valve bodies.