Low flow faucet aerators are one of the simplest ways to cut down on water use without giving up comfort or pressure. These small attachments mix air into the water stream, reducing the flow rate while still providing a steady, even spray.
They’re available in different flow levels, measured in gallons per minute (GPM), so you can pick the right one for your sink or faucet type. Faucet aerators are measured in gallons per minute (GPM), which tells you how much water flows through per minute. A 0.5 GPM aerator is ideal for handwashing sinks in public restrooms, giving strong water savings without affecting usability. 1.0 GPM models are great for residential bathrooms, while 1.5 GPM aerators work well in kitchens where a little more flow is helpful for rinsing dishes.
Many models are certified by the EPA’s WaterSense program, meaning they meet strict efficiency and performance standards. If you’re looking for proven water savings, go for WaterSense certified aerators (like this one from Neoperl). These models are independently tested to meet EPA standards for performance and efficiency. Some modern faucets use cache or hidden aerators, which sit recessed inside the spout for a cleaner look. These often require a special key for removal or installation.
Choosing the right flow rate is key to finding the perfect balance between comfort and conservation. Faucet aerators come in a few different thread styles, and choosing the right one ensures a proper fit. Male thread aerators screw into faucets with internal threads, while female thread aerators fit faucets with external threads.
Installing a low flow aerator offers plenty of everyday advantages beyond just saving water. They help reduce household water use, which lowers both your water and energy bills since less hot water is needed. They’re also environmentally friendly, cutting down on waste and supporting sustainable water management. Despite the lower flow rate, modern aerators maintain strong water pressure and a steady stream, so you won’t notice much difference in performance.
Why you need a faucet aerator
A faucet aerator is a small device that slows the flow of water coming out of your faucet. While most modern faucets come with aerators already installed, you may want to install a lower-flowing aerator to help save the energy needed to heat your water and, of course, to save water itself. An added benefit is less mess around the basin of your sink!
How to install a faucet aerator
- Hit the hardware store: Find an aerator that suits your needs at your local home improvement or hardware store.
- Remove the old aerator: Place a towel in the sink beneath your faucet and close drain stopper to prevent losing any pieces. Remove the collar, which is the piece that holds the faucet in place, by turning it counterclockwise with your hand. Knock out the old aerator and remove it.
- Install the new aerator: Grab your new faucet collar and place it on your counter with the threads facing up. With the mesh end of the aerator facing down, carefully place it inside the new collar. Push down and place the gasket within the collar. Place: Once the gasket is in, screw the new aerator in place.
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How to Install a Low-Flow Faucet Aerator and Save Water | KOHLER Tips for Sustainable Living
Additional notes on performance and options
Some models are designed as non-pressure compensating aerated streams that produce a larger and whiter stream that is soft to the touch and non-splashing. This makes them a common choice for residential faucet applications when a balance of feel and water savings is desired.
Remember that WaterSense certification is a useful indicator of both efficiency and performance compliance. Local water districts and municipalities may offer rebates for WaterSense products, making the upgrade more cost-effective.