New Resources Group Neoperl Cache Faucet Aerator Insert with Key Perlator Aerated Stream - Low Flow Watersense Standard size M24x1 (fits faucets roughly the size of a quarter) *** Please check your faucet size before ordering *** Cache Aerator with Key- Easy to install Perlator Low Flow faucet aerator - EPA Water Sense Listed Aerated non-splashing-1.5 gpm stream saves water, energy, and money Have a delta faucet? See note below*