Kohler GP77759 Mixer Cap for Pressure Balance 1/2" Shower Valve Protect the warranty on KOHLER products, always look for the KOHLER GENUINE PARTS logo Compatible with most Rite-Temp shower valves Temperature limit stop provides temperature control for safety while allowing maximum water temperature Provides smooth shower handle rotation Designed to fit with KOHLER trim Kohler Genuine Part Used in most shower valves Stem valve Temperature limit stop which allows maximum water temperature and offers additional scalding protection