5-layer filtration: This faucet filter features a built-in 5-layer filtration system, providing two additional layers compared to similar products on the market. It effectively reduces impurities and helps maintain 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 reducing water usage. A faucet equipped with this aerator can save approximately 30-40% more water than a standard faucet without an aerator. Splash-proof, noise-reducing, and consistent flow: Air infusion softens the water stream, minimizing impact force and preventing splashing. This design delivers a steady, smooth water flow while helping reduce operational noise. Secure sealing: The faucet nozzle includes an external sealing ring to prevent side leakage. The package includes two installation wrenches for easy setup. Simply use the wrench to tighten the filter onto the faucet, ensuring a secure fit and hassle-free installation. Package contents: 6 faucet aerators and 2 installation wrenches. Based on local water conditions, for optimal performance and water quality, it is recommended to replace the aerator every 3 to 6 months.