【5-layer filtration】This faucet filter has a built-in 5-layer filter, 2 layers more than similar products on the market, which can filter impurities better and ensure the hygiene and safety of the water. Suitable for kitchen and bathroom faucets. 【Water saving nearly 30-40%】The faucet aerator can completely mix water and flowing air to form a foaming effect and improve the wear force, thus reducing water consumption. A faucet with an aerator installed saves approximately 30-40% more water than a faucet without an aerator. 【Splash Resistant, Noise Proof, Constant Current】The water flow will become soft after mixing with air, reducing impact force, which can prevent water from splashing everywhere when water comes out. Thus, the sink faucet filters also reproduce good constant water flow and noise reduction. 【Good sealing】 The kitchen bathroom faucet nozzle has a ring sealing on the outside, which can prevent water from splashing on the side. At the same time, 2 plug-in faucet spray wrenches are included in the package, just use the wrench to tighten the faucet filter, the whole installation process is very convenient. 【 【Package List】You will receive 6 faucet aerators and 2 keys. According to the water quality in the area, for disinfection and water safety, it is recommended to replace the aerator directly every 3-6 months.