In the average U.S. household, toilet use accounts for the most water use - more than showering, more than washing clothes or dishes. At 27% of total water use, that represents about 27 gallons of water flushed down the toilet per person every day (or ~9,850 gallons/year)! These easy-to-install dual flush and toilet fill valve kits can help you reduce that amount by up to 70% (saving about 6,900 gallons/person every year), saving you money while going green. Also, they are a lot less expensive than buying a new dual flush toilet (cost less & you don't need to have a plumber install them).