Monitor pressure balance valve keeps water temperature within a safe ±3° F (±1.6° C), helping to protect you from sudden changes in hot or cold water pressure Trim kit only, must order MultiChoice Universal rough-in separately to complete the unit Meets standards set by Americans with Disabilities Act (ADA) Less showerhead model Monitor pressure balance valve keeps water temperature within a safe ±3° F (±1.6° C), helping to protect you from sudden changes in hot or cold water pressure Trim kit only, must order MultiChoice Universal rough-in separately to complete the unit Meets standards set by Americans with Disabilities Act (ADA) Less showerhead model