Amazon has filter balls on sale for $7.99 via using coupon SVB7GUSY. PERFECT REPLACEMENT FOR SAND - HeyUcan Clear Filter Media is designed to replace filter sand for pool filters. 1.5 lbs pool filter ball is equivalent to 50lbs pool filter sand.Perfect replacement for sand filter sand, filter ...

Amazon has 6-Pack HTH Pool Shock Super Shock Treatment (6-lbs) on sale for $13.82 when you clip the 30% off coupon on the product page. Shipping is free with Prime or on orders $25+.

VM Innovations via eBay has the Intex Ultra 18' XTR Rectangular Metal Frame Swimming Pool Kit for $681.59. Free shipping is also included with this deal. In addition, you'll earn eBay Bucks to use on a future eBay purchase.