Neoperl Spring Flo 2.2 Gpm Slotted Faucet Aerator | Plumbers Choice Aerated Stream Full Forceful Flow Kitchen & Bathroom Faucet End by Nrg ideas Dual Threaded for male & female Forceful Aerated Flow for a perfect stream Slotted design to maximize aeration 2.2 gpm flow rate - Not for use in California or any state/area that requires lower flow rates Easy to install, no tools required