Niagara 22003WHCO1 Flapperless EcoLogic 1.6 GPF Round and Tank Combo, WhiteThe Niagara Flapperless toilet features revolutionary tip-bucket technology, creating a high-performance flush at 1.6 GPF. Niagara"s patented flapperless technology is maintenance-free, eliminating the need to replace flappers, chains and levers. The tip-bucket technology creates a high performance flush at 1.6 gpf which substantially decreases water consumption. No double flushing, one flush will thoroughly empty the bowl every time. No leaks ever plus no-sweat tank. The huge 11" x 20" replacement footprint is designed to cover the existing cutout area with ease, eliminating costly flooring repairs and will fit both 10" x 12" rough-ins.Niagara 22003WHCO1 Flapperless EcoLogic 1.6 GPF Round and Tank Combo, White Features: 1.6 GPF Patented Niagara Flapperless Flush System Flapperless system eliminates all refill noise Uses 54% less water than a common 3.5 gallon toilet Maintenance free-no flapper, chain or lever to replace No leaks...ever!Niagara 22003WHCO1 Flapperless EcoLogic 1.6 GPF Round and Tank Combo, White Specifications: Bowl Shape: Round Rough-In: Adjustable: 10"-12" Bowl Rim Height: 15.25" Product Dimensions: 26.5" (673 mm) x 14.5" (368 mm) x 15.25" (387 mm) Trapway: Fully Glazed, 2" (51 mm) Valve/Flush Lever: White flush valve Flush Technology: Patented Niagara Flapperless flush system MaP Performance (Miso Rating): 725g miso Color: White Finish/Glaze: Vitreous China - White Finish Warranty: 10 year warranty on component parts; Lifetime warranty on porcelain Standards: Meets or exceeds all ANSI/ASME/CSA low-consumption water conservation requirements