Fluidmaster 400CRP14 Universal Toilet Fill Valve and Flapper Repair Kit, for 2-Inch Flush Valve Toilets Fix cracked fill valves and running toilets with one complete kit Easy-to-install 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 customers top choice for toilet fill valve and toilet flapper replacement!