[Solving Your Kohler Toilet Flush Valve Leak] This canister flush valve seal can prevent or stop leaks, to restore your toilet's quiet operation, improve flush pressure, and avoid those high monthly water bills with our Kohler toilet parts. [Quick and Easy Installation] Quick and effortless to repair your Kohler toilet leaking problems. No plumbing pro skills required and no need to remove the toilet base, it takes just a few minutes to install and restore your toilet's tranquility. Toilet Flush Valve Replacement Kit - Perfect replacement for Kohler K-GP1059291 canister flush valve seal (red or yellow color). Compatible with K-4436 parts. This toilet ring seal fits most toilets with a 3. 3/8" gasket diameter, a great way to fix issues caused by worn or damaged seals. [Premium Silicone Material] The toilet flush valve seal is crafted from high-quality silicone material, offering better resistance to chlorine and other chemicals in the water compared to regular rubber seals, last 10X longer than standard material. [Installation Video for Toilet Seal] If you're unsure how to replace this toilet seal component or there are any problems with this flush valve seal, contact us through Amazon for an installation video. We'll respond within 0.5 to 6 hours upon receiving your message.