This Summer Escapes 10' x 30" Quick-Set Swimming Pool with Filter Pump drops from $59 to $48 at Walmart.com. Plus two-day shipping is free. This is the best price we could find by at least $12! It features an inflatable top ring that rises as you add water, making setup quick. It also includes a pump, filter, and built-in chlorinator. Sales tax is charged in most states.