The 1.5 GPM Faucet Aerator Insert Replacements has innovative features and comes in a convenient 4 multi-pack. 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.  It has a removable/replaceable insert with a twisting spray pattern and will work on any Danco faucet aerator.