C-100502-KIT Flush Valve Cartridge with Duckbill and Screen. Only fits Kohler K-3597 toilet with model number M-102540-C.
Sloan Flushmate Genuine Replacement Parts
The Flushmate Flush Valve Cartridge is located on top the Flushmate system in the center of the vessel. This is the main valve that opens and closes to deliver the water to the toilet bowl.
Optional Tools: Flush Valve Cartridge Wrench (ST-100500)