Photo 1 of 3.1 Lbs Pool Filter Balls, Eco-Friendly Filter Balls for Swimming Pool Sand Filters, Lightweight and Reusable Fiber Ball, Replace 100 lbs Pool Filter Sand

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Photo 1 of 3.1 Lbs Pool Filter Balls, Eco-Friendly Filter Balls for Swimming Pool Sand Filters, Lightweight and Reusable Fiber Ball, Replace 100 lbs Pool Filter SandPhoto 2 of 3.1 Lbs Pool Filter Balls, Eco-Friendly Filter Balls for Swimming Pool Sand Filters, Lightweight and Reusable Fiber Ball, Replace 100 lbs Pool Filter Sand