Best Dual Toilet Flush Valves of 2026

The Danco HYR451T HydroRight Dual Flush Toilet Repair Kit includes a dual flush converter that saves water, eliminates toilet leaks, and installs without removing the tank. It features a unique split handle design, which uses lower water volumes for liquids and paper, and normal amounts of water for solids. The kit detects leaks and can be calibrated to adjust the exact amount of water needed, thus saving water. This kit works with standard 2 in. flush valves and is not compatible with Mansfield toilets.

The Saillong Toilet Tank Kit is designed to enhance your toilet's performance and efficiency. It addresses common issues like leaks and poor flushing by providing high-quality components made from durable ABS material. You'll appreciate the adjustable water level feature, which lets you control water usage while maintaining a quiet filling process. With its dual flush options, you can choose between a full or half flush, helping you save water and reduce costs. Installation is a breeze, allowing you to enjoy a fully functional toilet in no time.

The houpeoro Dual Flush Kit is a versatile replacement designed for most 3-inch two-piece toilets, making it easy for you to upgrade your bathroom without hassle. It offers dual flush options, allowing you to choose between a powerful full flush for solid waste and a water-saving half flush for lighter use, helping you reduce water bills. Installation is straightforward and adjustable, so you can customize the fill valve height, push button length, and overflow pipe to fit your tank perfectly. This kit also helps restore your toilet’s performance by fixing leaks, improving flush strength, and stabilizing the tank for a smoother, quieter experience.

The Fluidmaster 550DFRK-3 DuoFlush Complete Fill and Dual Flush Conversion System is an easy-to-install and adjustable solution for converting your existing 2” flush valve toilet to dual flush technology, saving up to 45% water and money. This complete fill and dual flush conversion system is designed to retrofit to any 2” flush valve toilet and pre-1994 3.5+ gallon per flush models. With a dual action toilet flush lever included, you can choose between full and half flushes. The kit comes with a PerforMAX High Performance Fill Valve that has a 2x greater refill rate, replacing noisy and slow filling inefficient models.

The Sloan Optima Diaphragm is designed to replace worn-out parts in your Optima Sensor Flushometers, helping you avoid costly repairs. Made from durable PERMEX rubber, it resists chloramine, ensuring a longer lifespan. This diaphragm is crafted to improve performance and reduce maintenance needs, so you spend less time fixing issues. Its special flex tube design helps control water use efficiently, preventing waste and ensuring each flush uses the right amount of water. By choosing this replacement, you can save money, conserve water, and keep your restroom running smoothly.

The Ulinlo Pouly Dual Flush Valve is designed to fit most 2-piece toilets with a 3-inch drain hole, making it a versatile choice for many common models. This kit makes installation straightforward by including all necessary parts like the flush valve, push button, bolts, and gasket, saving you time and effort. It offers two flush options: a full flush for heavy waste and a half flush to conserve water, helping you reduce your water bills. Made from durable ABS materials and featuring a thick rubber seal, this kit ensures long-lasting performance and minimizes leaks in your toilet tank.