5-layer filtration This faucet filter features a built-in 5-layer filtration system, offering 2 additional layers compared to similar products on the market. This enhanced filtration helps remove impurities and supports water hygiene and safety. Suitable for use with kitchen and bathroom faucets.Water saving of up to 30-40% The faucet aerator efficiently mixes water and air to create a non-splashing, foamy flow while maintaining strong pressure. This aeration process helps reduce water usage by approximately 30-40% compared to faucets without an aerator.Splash-proof, noise-reducing, and consistent flow Air infusion softens the water stream, minimizing impact force and preventing splashing. This results in a smooth, steady flow while also reducing operational noise.Secure sealing and easy installation The faucet nozzle includes an external sealing ring to prevent side leakage. The package includes 2 installation wrenches for quick and secure fitting. Simply use the wrench to tighten the filter into place, ensuring a hassle-free installation.Package contents 6 faucet aerators 2 installation wrenches For optimal performance and water quality, it is recommended to replace the aerator every 3 to 6 months depending on local water conditions.