C-100500-K Flush Valve Cartridge Assembly Kit Replacement for Flushmate 500, 501, 503, 504 Series Pressure Assist Tank, Fits M-101526-F3 M-101526-F4 (2PCS)

["【Wide Compatibility】Perfect replacement for C-100500-K flush valve cartridge. Fully compatible with Flushmate tank systems series 500, 501, 501A, 501B, 503, and 504. Fits M-101526-F3 and M-101526-F4 pressure assist toilets.","【Professional Repair Solution】Solve common toilet issues such as leaking, phantom flushing, or weak flush performance. This all-in-one kit restores your pressure-assisted toilet to its original factory performance without replacing the entire tank.","【Enhanced Durability & Material】Made of high-quality, corrosion-resistant ABS material. Each cartridge undergoes rigorous quality testing to exceed OEM standards. The upgraded seals ensure long-term leak-proof performance and heat resistance.","【Complete Maintenance Kit】Everything you need in one pack! The kit includes 2x C-100500 Flush Cartridge Assembly, 2x Duckbill Valve, and 2x Filter Screen. No need to purchase extra parts for your routine toilet maintenance.","【Easy DIY Installation】No special tools or professional plumbing skills required. You can easily replace the old cartridge in minutes by following the simple steps. Save time and expensive plumbing repair costs"]