Features 1. Premium material: The filter balls is made of polyester fiber, which not only has the advantages of high filtration precision and large sewage interception capacity of fiber filter material, but also has the advantages of high backwash cleaning degree and low water consumption of particle filter material, forming a A new filter material. 2. Pool filter balls provide superior filtration compared to traditional filter sand. Ourpool filter balls are as effective with powerful filtering capacity, capable of meeting your needs and replacements. 3. Reusable: Made of recyclable material, the filter balls are reusable many times and easy to clean, making them a cost-effective and eco-friendly choice. 4. Wide application:S uitable for sand filter pump for above ground pool and aquarium, fish tank, filter pump, etc., lighter and more efficient than traditional filter sand, clear water for you and your children to swim happily. 5. Easy to Clean and Maintain: Unlike traditional filter sand, our pool filter balls are lightweight and easy to handle, won& 39;t clog your filter, and require less backwashing for maintenance purposes. They extend filter life and are a perfect replacement for filter sand and filter glass, saving you time and effort. Specification Material: Polyester fiber Color: White Size: 24 x 29 x 5 cm Weight: 483 g Package Include: 1 Bag x Pool Filter Balls