Product Description Designed with overall performance in mind, the Fluidmaster 400AKR Universal All in One Toilet Tank Repair Kit features everything you need to make your toilet run like new. The trusted and proven 400A toilet fill valve ensures a quiet and proper fill, 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 1.6 to 3.5 gallons per flush toilets or larger to help solve most common toilet fill problems. Only trusted, durable, and code approved toilet replacement parts in this kit, designed to restore and fix overall toilet performance.. From the Manufacturer Fluidmaster is the #1 toilet repair brand in the world. Since 1957, we have been guiding our customers to the right toilet repair solutions. Fluidmaster is dedicated to making the installation of its products easy and simple with a complete line of toilet repair parts including: fill valves, single and dual flush valves, flappers, tank levers, toilet seals (bowl wax and wax-free), toilet repair kits, flush valve seals, connectors and more. Fluidmaster parts are found in more toilets than all other brands combined. Fluidmaster distributes to over 90 countries and is the trusted brand by toilet manufacturers and professionals worldwide.