[Swimming pool filter ball]The swimming pool filter ball is made of 100% polyester, an ultra-light and environmentally friendly material that has excellent durability, good water permeability and good drainage.Highly elastic swimming pool filter balls can filter impurities from water quickly and powerfully. [Reliable swimming pool sand filter]: Swimming pool filter balls have high filtration speed, low energy efficiency, large adsorption capacity and long service life.These Pool Filter Balls can capture microscopic suspended matter that is not easily removed by sediment, resulting in a cleaner pool. [Easy to use]: The pool sand filtration pool filter balls are very easy to replace. Unlike sand, the pool filtration ball does not clog your filter and requires less backwashing for maintenance. [Widely used]: Equivalent to 30 kg of swimming pool filter sand, but more energy efficient than traditional filter sand.These Filter Balls are not only used in swimming pool cleaning and filtration systems, but also suitable for swimming pools, aquariums, filter pumps, aquariums and other media. [Recyclable and Reusable]The ball-shaped filter can be reused as it can be machine washed without caking.The swimming pool filter ball is non-toxic and its material can be recycled, which is environmentally friendly.