There are more choices when it comes to flush valves and toilets that reduce water use. Zero-water-consumption urinals have become more widespread, and can save up to 40,000 gallons of water per year compared to a standard 1 gallon-per-flush urinal. New urinals are available that use as little as one pint per flush. Toilets also come in a variety of options, from 1.6 gallons-per-flush models to high efficiency models that use 1.28 gallons per flush. Dual-flush models use 1.1 or 1.6 gallons, depending on how the handle is activated. Adding occupancy sensors is another way to improve the energy efficiency of restrooms.