Ferrochef 3.96 Lbs Reusable Pool Filter Balls for Sand Filter 3 Colors for Swimming Pool Bath Center Bathtubs Spas Aquarium Grime Cleaning Scum

["Multi-color Design Large Capacity: includes white, light blue, and dark blue filter balls ( total 3.96lbs per pack) for enhanced visual appeal and easy identification; Suitable for all pool sizes, this set provides excellent coverage and long-lasting filtration","Reliable Polyester Fiber: made from 100% polyester fiber, these 50mm pool filter balls deliver superior filtration performance and durability; Ideal for sand filter replacement, they efficiently trap fine particles and debris, ensuring pool water","Easy to Clean and Reuse: comes with 2 convenient 11.81 x 15.75 inches/ 30 x 40 cm mesh cleaning bags for simple machine washing; Simply rinse or machine wash the filter balls for sand filter to restore their filtering power, reducing water waste and saving time on pool upkeep","High Absorption and Efficient Filtration: designed for strong adsorption performance, these pool filter balls help capture fine impurities and suspended particles, improving water clarity and reducing the frequency of backwashing and manual cleaning, while maintaining stable water circulation for a cleaner, clearer swimming or aquarium environment","Suitable for Pools and Aquatic Systems: ideal for use in swimming pools, above-ground pools, aquariums, fish tanks, and similar water filtration systems, this reusable filter ball set offers an effective alternative to sand or cartridge filters, helping maintain clean water with less maintenance and lower replacement frequency"]