【High Quality Filter Ball】The pool filter ball is made of 100% polyester fiber, is highly elastic, lightweight and environmentally friendly, and is an effective alternative to conventional sand/glass beads/zeolite. 【Efficient and Durable】Pool Filter Ball Fast filtration, low energy efficiency, high adsorption capacity, long service life, captures microscopic suspended solids that are not easily removed by sedimentation, making pools cleaner. 【Convenient and Fast】The pool filter ball has installation steps Simple cleaning methods that make it easy to set up a sand filter system for pool cleaning. At the same time, the filter balls for sand filter systems are easy to replace, simplifying the entire filtration process. 【Reusable】The pool filter cotton ball with net can be cleaned regularly, very durable and low loss. Place the filter ball in the free laundry bag and machine wash it. It can be used immediately after cleaning or stored after natural drying. 【Widely Applicable】Swimming pool