Product Description Designed with high-performance in mind, the Fluidmaster 400ARHRKP10 PerforMAX Universal High Performance All in One Toilet Repair Kit features everything you need to make your toilet run like new. The premium PerforMAX toilet fill valve features a height adjustable valve shank design to adjust between 10 15 inches, while the PerforMAX 2-inch water-saving flapper adjusts to maximize water usage with each flush. A complete toilet repair kit, it also includes a replacement toilet flush valve, toilet handle, and tank-to-bowl gasket, solving various leaking and common toilet problems. Perfect for a DIY upgrade with its fast and easy installation, the universal design fits most 2-inch flush valve toilets and works best with high efficiency 1.28 and 1.6 gallons per flush toilets to help solve most common toilet fill problems.. From the Manufacturer The Fluid master performax all-in-one toilet repair kit is the best, comprehensive, solution for common toilet problems, such as: noisy toilet, running or leaking toilet, slow filling toilet and toilet with weak flush. PREMIUM TOILET PERFORMANCE: All in one toilet repair kit replaces inefficient fill and flush valves, leaky flappers, and broken toilet handles to make your toilet run like new UNIVERSAL DESIGN: PerforMAX toilet fill valve with 2X greater refill rate adjusts easily from 10 15 inches and is ideal for use in high efficiency 1.28 to 1.6 gallons per flush toilets HIGH PERFORMANCE FLAPPER: PerforMAX 507AK high performance 2-inch adjustable water-saving toilet flapper eliminates twisting and ghost flushing to maximize water usage with each flush, Deteriorating or damaged flush valve EASY INSTALLATION: Easily installs in 10 minutes or less to get your toilet flushing like new again Effectively control fill and flush volume, while upgrading toilet parts