This 1.5 GPM Faucet Aerator by Danco is designed to save up to 30% water as compared to using the standard 2.2 GP aerator. This aerator is also WaterSense certified 1.5GPM. It reduces water consumption without sacrificing water pressure. Installing a hidden aerator can be difficult, but the key included in the package makes the removal and installation of the new aerator easy. This kit includes adapters to convert a standard Delta and Moen faucet into a water saving fixture.