This 1.0 GPM Thread Extra-Water-Saving Aerator Insert by Danco has new Innovative Features. It has Cyclone Technology which reduces water consumption without sacrificing water pressure. This Faucet Aerator is Water Sense Certified and can save you up to 55% water as compared to using the standard 2.2 GPM Aerator. Dual aerator removable replacement insertExtra savings up to 55% water consumptionWatersense certified 1.0 GPMCyclone aerated stream which reduces water consumption without sacrificing water pressureTwisting spray patternAnnual replacement insert