Photo 1 of Pool Filter Balls for Swimming Pool Sand Filters 2.8 lbs, Pool Filter Sand Replacement, Eco Polysphere Filter Media(Equals 100 lb Pool Filter Sand) Alternative to Sand and Filter Glass (2.8)

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Photo 1 of Pool Filter Balls for Swimming Pool Sand Filters 2.8 lbs, Pool Filter Sand Replacement, Eco Polysphere Filter Media(Equals 100 lb Pool Filter Sand) Alternative to Sand and Filter Glass (2.8)Photo 2 of Pool Filter Balls for Swimming Pool Sand Filters 2.8 lbs, Pool Filter Sand Replacement, Eco Polysphere Filter Media(Equals 100 lb Pool Filter Sand) Alternative to Sand and Filter Glass (2.8)