C-100500-Kit Flush Valve Cartridge Replacement & 3-in-1 Wrench ST100100,Fits M-101526-F3, M-101526-F4 & 500/501/503/504 Series Pressure Assist Tank, Duckbill Valve,Wrench & Paper Clip

["Compatibility:Our pressure assist flush valve compatible with 500, 501, 501A, 501B, 503, and 504 series pressure assist tank systems. Also fits M-101526-F3 and M-101526-F4 pressure assist tanks. Note: Not compatible with 200 series tanks","Leaking Toilet Repair:Replace your worn or damaged flush valve cartridge with our C-100500-K replacement to effectively solve common toilet issues, including constant water running, intermittent leaks, and weak flushes","All-in-One Kit:This all-in-one toilet flush valve repair replacement kit includes everything you need for a quick rebuild: flush valve cartridge main body, duckbill valve, and 3-in-1 Wrench ST100100","DIY-Friendly: No need to hire an expensive plumber—simply use our included 3-in-1 specialized cartridge removal wrench (ST100100) to replace the cartridge flush parts in less than 10 minutes","Durable Quality: Built with high-impact, corrosion- ABS materials, our C100500-K Replacement Cartridge is engineered to withstand high water pressure and harsh mineral buildup., reliable seal for years to come"]