When it comes to keeping our faucets running smoothly, we rely on the Kohler K-GP77005-RP Ceramic Valve. This one-size brass cartridge is a genuine part from Kohler, ensuring long-lasting performance and durability. We appreciated how easy it was to install this valve, thanks to its hassle-free design. The ceramic material not only guarantees a leak-free operation but also provides smooth and precise water control. With this replacement cartridge, we can rest assured that our Kohler faucet will continue to function flawlessly for years to come. Overall, we highly recommend the Kohler K-GP77005-RP Ceramic Valve for anyone looking to maintain the peak performance of their faucet.