Askyli 2.9 lbs Pool Filter Balls for Sand Filter, Reusable Pool Sand Filter Balls, Efficient Pool Filter Sand, Suitable for All Sand Filter System (Equals 100lbs Pool Filter Sand) - Light BlueBrand: Askyli Color: Light Blue Features: Ultra Efficient Pool Filter Balls: Upgrade maintenance with sand filter balls! These filter balls for sand filter trap dirt instantly, keeping water crystal clear. Slash cleaning time, save energy, and reduce workload. A must have for effortless pool care Reusable & Machine Washable: Made of durable polyester, these pool filter balls are non toxic, reusable, and machine washable. Toss them in your washer or