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 $1.50, 79% below the $6.99 MSRP, in Good Condition. Bid on this item at our Louisville - Intermodal Dr. location before the auction closes.