6 PP Cotton Filter Elements - 6 filter elements to ensure you can use it all year round (we recommend replacing it every 1-2 months). Of course, you can choose when to replace the filter depending on the quality of your application. Water level in your city and the water level pollution of the filter element. Filter replaces hard water, non-toxic, odorless, environmentally friendly and easy to clean. In addition, it can remove particulate pollutants in the water and effectively block large particles such as rust, sand, suspended matter and insect eggs in the water. It is recommended to change frequently and put an end to bathing in dirty water! Water Filter Three Layers: The shower head filter has an upgraded filter system, high-quality filter material, PP cotton filter, anionic anti-scale mineral ball and makeup cotton, forming a triple filter system that can effectively filter chlorine. Sand, rust, bacteria and other impurities make hard water softer and maintain the pH value of the