The best products...
- Use no more that 1.10 gallons per flush (single flush)
- Use no more than an average of 1.10 gallons per flush, based on one full flush and one reduced flush (dual flush)
- Have a minimum of 600 grams per the Maximum Performance (MaP) test
- Are 1.10 gpm toilet flushometers that can evacuate 800 grams
But watch out for...
- Toilets with more than 1.10 gallons per flush
- Toilets that do not list MaP test results or do not meet the 600-gram minimum (800 for flushometers)