The Fluidmaster PerforMAX Toilet Fill Valve and Flapper Kit offers the best solution to optimize your toilet flush, while saving water and money. Quickly solve common toilet problems such as; noisy toilet, running toilet, leaky toilet, and weak flush with one kit. A universal design which fits most flush valve toilets including Kohler, Toto, American Standard, and more. Featuring the high performance PerforMAX Fill Valve the quietest, most powerful fill valve on the market, with a code approved anti-siphon operation. Now with easy to turn tank and bowl water level adjustment dials to control water use and save, while the EZ-Twist height adjusts from 10 In. to 15 In. to fit most tanks. Also, featuring the PerforMAX Water-Saving Toilet Flapper, which offers a dial adjustment to customize your water use depending on your needs. The solid frame ensures a secure seal, while the hard water resistant materials, and built-in Microban technology fight bacteria and breakdown. Upgrade your toilet performance and save with Fluidmasters PerforMAX Fill Valve and Flapper Repair Kit.