Flushmate M-101526-F32 503 Series Pressure Assist tank less Handle

This complete system replacement is designed to replace existing Flushmate M101526-F3 Series for Kohler K4404 toilet Flushmate.  Compatible with Kohler K4404 tanks  Flow Rate 1.6 gpf Minimum Operation Pressure 20 psi Need a replacement cartridge?  Order the C-100500-K. Need a replacement handle kit? Order the AP300503.  Please note that Flushmate systems will not retrofit into gravity type toilets and will only fit into a toilet that already has an existing Flushmate system.  Owner's Operation & Installation Manual Not sure this is the correct replacement? Click HERE to help me find my Flushmate!