C-100500-KIT Flush Valve Cartridge Assembly Kit Duckbill Valve Filter Screen & Lower Supply Filter 1.0 & 1.6 GPF Systems for Flushmate 501A 501B 503 504 Cartridge （1 Pack）

["Application: Designed to replace the flush valve cartridges for 1.6 and 1.0 GPF Flushmate models including Series 501A, 501B, 503, and 504.","Reference Part Numer: C-100500-K, C-100500-KIT.","Function: Our cartridge effectively controls the release of pressurized water, providing stable GPF and achieving stable flushing of pressure-assisted toilets.","When To Replace: Sluggish Flush; Water draining from around the toilet rim; Water in Cartridge Area. It can solve common problems such as continuous water flow and leakage, restoring your toilet to its better flushing performance.","Material: Mainly made of durable ABS, structurally stable, corrosion-resistant, able to withstand the demands of pressure-assisted toilet systems, extending the service life."]