If you are looking for a practical and versatile swimming pool filter ball, you can choose our filter ball, which can quickly capture dirt, filter quickly, will not clog the filter, has strong adsorption capacity, makes the swimming pool cleaner, and 1.54 pounds of filter balls are equivalent to 50 pounds of filter sand, which can better meet your needs and replacement. High-quality materials: The swimming pool filter ball adopts 100% polyester fiber material. The fiber filter ball can perfectly replace the traditional swimming pool sand filter, which is lighter and more effective than the traditional sand filter. It can be added to any pool or aquarium filter, making pool cleaning and maintenance easier, giving you more time to enjoy your time. Durable and Long Lasting: Our pool filter balls are sturdy and can withstand frequent use and long-term high pressure to ensure long-lasting durability and reliable performance, and the sand pump cotton balls come with a laundry bag, which can be machine washed and reused. Wide Application of Filter Balls: The pool filter ball is suitable for swimming pools, aquariums, fish tanks, etc. It is also compatible with a variety of pool filters. It provides excellent filtration performance for a variety of applications. Note: Sand filters do not provide backwashing function. If the outlet diameter is larger than the filter ball. It is recommended to use the ball with a mesh bag to avoid clogging the filter.