Multi-layer filter element: Made from eco-friendly ABS + PC material with a high-density PP cotton filter element and particles to remove residual chlorine, heavy metals, fluoride, rust, and other impurities, resulting in softer, safer water. Easy to install: Fits 99% of standard round kitchen faucets with M22 external thread and M24 internal thread. Universal connectors ensure easy installation on most faucets (please check faucet size before purchasing). 360° rotation: Features a 360° rotating water outlet for convenient face washing and mouth rinsing, easily cleaning sink corners. Splash-proof with compressor: Developed with a compressor function for increased water flow while effectively preventing splashes, enhancing your user experience. Transparent design: Thoughtful transparent window allows you to monitor the filter element's usage and replace it in time for continuous filtration and stable quality.