The PerforMAX fill valve and 2 in. Flapper Kit is the premium solution to make your 2 in. flush valve toilet run like newPerforMAX toilet fill valve offers high performance with adjustable tank and bowl water for full water controlFast and Easy to InstallPerforMAX Water-Saving Toilet Flapper included to save water use per flushAdjustable fill valve height to fit more tanks corrosion resistant flapper Solid frame for a secure seal 7 year warranty