maqihan 50pcs pool filter balls for sand-filter - dry filter sand balls,reusable swimming pool filter media,soft filtration balls,sand filter ball suitable for aquarium tank,pools sand filter systems is up for auction in Patio, Lawn & Garden. The current bid is $3.00, 57% below the $6.99 MSRP, in Good Condition. This auction has ended — similar items appear in live auctions regularly.