Neoperl 2.2 Gpm Aerated Stream Faucet Aerator | Serious Flow Control Dual Threaded for male & female Soft white Aerated Flow for a perfect stream 2.2 gpm flow rate - Not for use in California or any state/area that requires lower flow rates Trusted by plumbers since 1938. Good for kitchens or bathrooms. Easy to install, no tools required