Water-saving: The aerator fully mixes water and air to create a foaming effect, improve flushing performance, and reduce water consumption. A faucet with an aerator saves up to 40% water. 7-layer filtration: Our faucet filter features 7-layer fine filtration for clean, hygienic, and safe water. The 2-layer perforated ABS filter effectively filters out large dirt particles in the water flow. 5 layers of SUS 304 stainless steel filters effectively filter out small particles in the water flow. Constant water flow: Aerators ensure a certain flow rate when the water pressure is too low, limit the flow rate when the water pressure is too high, and stabilize the flow rate when the water pressure is unstable. Splash-proof and noise-reduced: The perfect airflow design in the aerator. The hollow part of the filter element is mixed with air, making the water flow smooth and reducing impact. The buffered water column is uniform and vertical to prevent splashing. Included: 6 aerators, 8 gaskets, 1