K-GP876851 Kohler Rite-Temp Mixer and Pressure-Balancing Unit Kit Protect the warranty on KOHLER products, always look for the KOHLER GENUINE PARTS logo. KOHLER GENUINE PARTS are designed by KOHLER engineers to maintain original product performance and promote product longevity. The Rite-Temp pressure-balancing unit cartridge is designed to seamlessly retrofit existing shower valves for easy installation. It is built to withstand a greater range of water conditions and will provide long-lasting performance. Meets all required codes and standards.KOHLER GENUINE PartReplacement Rite-Temp pressure-balancing unit cartridge and cap kit, includes GP800820 and GP77759Replaces KOHLER part GP76851Compatible with KOHLER shower valves K-304 and K-11748 platformsLatest Rite-Temp technology maintains even temperature, preventing water pressure fluctuations and protecting the userResistant to aggressive water conditions providing long-lasting performance