5-Layer FiltrationThis water-saving faucet aerator has a built-in 5-layer filter, which is 2 layers more than the same type on the market, which can filter impurities better and ensure water hygiene and safety. Suitable for kitchen and bathroom faucets. Almost 30-40% water savingThe faucet aerator in kitchen saving can fully mix water and flowing air to form a foaming effect, improve the scrubbing force and thus reduce water consumption. A faucet with an aerator installed saves about 30-40% more water than a faucet without the device. Splash Resistant, Noise, Constant Current Resistant Once the water flow mixed in the air, it will become softer and reduce the impact force, it can prevent the water from splashing everywhere when the water is out. So the sink faucet aerator can also play a good constant water flow and noise reduction effect. Good sealingThe faucet aerator has a waterproof sealing ring. outside, which can prevent water from splashing on the side. At the same time, the package comes with 2 plug-in keys, you only need to screw the faucet aerator with the key, the whole installation process is very convenient. Packing listYou will receive 6 faucet aerators and 2 keys. According to the different water quality in the area, for the sanitation and safety of your water, it is recommended to replace the bubbler directly every 3-6 months.