Toilets account for 30% of water usage in homes. Niagara’s Shadow 0.8 GPF uses the least amount of water to help the environment and save money on utility bills. This toilet uses Niagara’s patented vacuum-assist Stealth Technology®, which redesigned the flush using an air transfer tube instead of a flapper – which can break. It has won several EPA WaterSense® awards for powerful performance, minimal maintenance, and water-efficiency and has saved the world over one billion gallons of water. It is the best solution for those who want design, powerful performance, and maximum water-efficiency.