Photo 1 of Askyli 2.9 lbs Pool Filter Balls for Sand Filter, Reusable Pool Sand Filter Balls, Efficient Blue Filter Media Balls, Suitable for All Sand Filter System (Equals 100lbs Pool Filter Sand)

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Photo 1 of Askyli 2.9 lbs Pool Filter Balls for Sand Filter, Reusable Pool Sand Filter Balls, Efficient Blue Filter Media Balls, Suitable for All Sand Filter System (Equals 100lbs Pool Filter Sand)Photo 2 of Askyli 2.9 lbs Pool Filter Balls for Sand Filter, Reusable Pool Sand Filter Balls, Efficient Blue Filter Media Balls, Suitable for All Sand Filter System (Equals 100lbs Pool Filter Sand)