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.