FlushMate System for all OEMs except Kohler K4404
The M-101526-F31 Flushmate System is a complete pressure-assist flush 1.6 gpf system for 503 series tanks. It fits all 503 series toilets EXCEPT for the Kohler 4404.
Flushmate products cannot be retrofitted to existing gravity toilet bowls. Use only with Flushmate-equipped toilets.
Click Here for Kohler 4404 Replacement Tank
Model No. M-101526-F31