Fluidmaster 550DFR-1 DuoFlush Dual Flush Conversion Valve Product Description Duo flush dual flush Conversion valve, universal, plastic, duo flush, suitable for use with: 2 in toilet tank, 11.46 in length x 5.5 in width x 4.25 in depth, includes: flapper and seat disk. The fluid master duo flush gives you a tool to help save more water than any other dual flush system on the market. The dual flush system retrofits into any 2-inch toilet tank and is proven to use up to 45-percent less water than the original tank parts. It also has been shown to improve flushing power on the full flush, so you will actually see better performance than before. A dual flush tank lever is included with this system. Durable silicone seal lasts for years. Fully adjustable full and half flush. 10-Year warranty. From the Manufacturer The Fluidmaster Duo Flush gives you a tool to help save more water than any other dual flush system on the market. The Dual Flush System retrofits into any 2-Inch toilet tank, and is proven to use up to 45-Percent less water than the original tank parts. It also has been shown to improve flushing power on the full flush, so you will actually see better performance than before. A dual flush tank lever is included with this system. Durable silicone seal lasts for years. Fully adjustable full and half flush. 10-year warranty. Features Uses up to 45% less water Retrofits to any 2 inch toilet Fully adjustable for a wide range of settings USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.