5-Layer Filtration: This water-saving faucet aerator features a built-in 5-layer filter, providing effective filtration of impurities for improved water hygiene and safety. Suitable for kitchen and bathroom faucets. Approximately 30-40% Water Saving: The kitchen faucet aerator mixes water and air to create a foaming effect, enhancing cleaning performance while reducing water consumption. Helps save approximately 30-40% more water compared to a faucet without an aerator. Splash-Proof, Quiet, and Consistent Flow: By mixing water with air, the stream is softened, minimizing splashing and impact. Ensures a steady flow and reduces running noise. Reliable Sealing: The aerator includes a sealing ring to help prevent leaks and side splashing. The package includes 2 wrenches for easy installation; simply screw the aerator onto the faucet using the wrench. Package Includes: 6 faucet aerators and 2 installation wrenches. Based on local water conditions, it is recommended to replace the aerator every 3 to 6 months for optimal performance and hygiene.