Walmart offers the Intex Swim Center Family Lounge Pool in Blue for $22.10. Opt for in-store pickup to drop that to $21.02. (Amazon charges the same a buck more with free shipping for Prime members.) That's the lowest price we could find by $2 and the best price we've seen. It measures 88" x 85" x 30" and features a 169-gallon capacity, two air chambers, drain plug, and repair patch.