Water saving: the faucet aerator can completely mix the water and air flowing through the aerator to produce foam effect and improve the rinsing power and reduce water consumption. A faucet with an aerator installed can save about 40% of water 7 Layers of Filtration: Our faucet filter has 7 layers of fine filtration to ensure clean, hygienic and safe water. The 2-layer ABS perforated filter element can effectively filter large particles of impurities in the water flow. 5-layer SUS 304 stainless steel filter, effectively filtering small particles in the water flow Constant water flow: the faucet aerator ensures a certain water output when the water pressure is too low, and limits the water output when the water pressure is too low Anti-splash and noise reduction: the perfect airflow design in the faucet jet regulator, the hollow part of the filter element mixes with air, the water flow is smooth, the impact is reduced, the water column is buffered evenly, the water column is vertical, and water splash is prevented Scope of supply: 3 A Faucet Aerator