This 1.5 gpm faucet filter aerator by Danco has innovative features. It has cyclone technology which reduces water consumption without sacrificing water pressure. This faucet aerator is WaterSense certified and can save you up to 30% water as compared to using the standard 2.2 gpm aerator. This aerator will filter chlorine out of your water for 90 days. It has a removable/replaceable insert with a twisting spray pattern and will work on any faucet. Dual threads fit 15/16 in-27M or 55/64 in-27F.