Spherical filter balls for pool and aquarium filtration. Color Blue. DisplayWeight 4.6 Pounds. Key benefits filtration efficiency: Polyester, polypropylene spherical elements and acrylic fiber combine for strong particle capture and fast flow through the media. Lightweight replacement for filter sand: Small volumes large amounts of sand for easier handling and faster installation. 1.5 Lbs filter ball equals 50 pounds of filter sand. 3.0 Lbs filter ball is equivalent to 100Lbs filter sand. 4.5 Lbs filter ball is equivalent to 100Lbs filter sand. Reusable and easy to clean: Comes with a wash bag and is machine washable for regular maintenance and extended service life. Durable performance: Designed to withstand heavy use and pressure without breaking down, maintaining filtration performance over time. Low maintenance and low loss: Good elasticity and structural stability reduce media breakdown and loss in the filter system. Function and compatibility Designed to sand in sand filter systems and to work with common filter pumps. Suitable for swimming pools, aquariums, fish tanks, and other recirculating filtration setups that accept granular or loose media. Compatible with standard sand filters where a lightweight, flow alternative is desired. Practical applications Residential inground or aboveground pool: several bags of sand with a small, lightweight pack of filter balls to reduce installation time and simplify future maintenance. Home aquarium or fish tank systems: Improve particle removal in canister or pumpbased filtration without frequent media changes. Portable or seasonal pool setups: Easier to add, remove, and clean when compared with transporting and disposing of heavy sand. What you get Blue spherical filter media made of polyester, polypropylene spherical filter elements and acrylic fiber. Wash bag for machine cleaning. Lightweight product for easier handling with DisplayWeight 4.6 Pounds. Performance notes Follow your filter manufacturer guidelines for media volume and backwash routines. Regular cleaning in the supplied wash bag will extend media life and maintain flow and filtration efficiency.