Replacement Flush Valve Cartridge Kit – C-100500-K For Flushmate Pressure Assist Tanks, Fits M-101526-F3/F4 & 504 Series, 1.6/1.28/1.0 GPF

About This Product

If you've got a Flushmate pressure-assist toilet tank that's been running weak or constantly running water, this cartridge kit might be the fix.

It's a replacement for part number C-100500-K, and it works with a bunch of Flushmate tanks – specifically the M-101526-F, F3, F4, and the 500, 501, 501A, and 504 series.
The cartridge is the main valve that opens and closes to send water to the bowl, so when it starts acting up, your flush performance goes downhill.

This kit replaces the whole assembly, and it's compatible with 1.

6, 1.
28, and 1.

0 GPF tanks.
Made from quality materials, it's durable and direct-fit – no modifications needed.

Installation is straightforward for anyone comfortable with basic toilet repair.

Much cheaper than calling a plumber or replacing the whole tank.
Good fix for a frustrating problem.