- Fix cracked fill valves and running toilets with one complete kit
- Universal design fits most toilets
- 501 flapper fits 2" flush valve toilets
- 400A toilet fill valve easily adjusts between 9" - 14"
- Replace damaged fill valves and leaky flappers
- Optimize your toilets performance with both fill and flush solutions
- 5-year warranty
- The customer's top choice for toilet fill valve and toilet flapper replacement!
Enhance your toilet’s overall performance in one proven Fluidmaster kit. The Fluidmaster 400CR Toilet Fill Valve and Toilet Flapper Repair Kit is a complete fill and flush toilet repair kit that includes both the trusted Fluidmaster 400A toilet fill valve and the durable Fluidmaster 501 2” flapper. Perfect for a DIY upgrade with its fast and easy installation and a 5-year warranty. A replacement toilet kit that solves most common toilet fill problems, with the included 400A toilet fill valve anti-siphon design. While the reliable 501 2” flapper helps prevent leaks, featuring a solid frame build, and corrosion resistant materials. For an even more optimized performance consider combining with a Fluidmaster automatic toilet bowl cleaner. A universal design fitting most 2” flush valve toilets, best with 3.5+ GPF and works with 1.6 GPF toilets. The Fluidmaster 400CR Toilet Fill Valve and 2” Toilet Flapper Repair Kit is the #1 solution to fix noisy and running toilets.