Wall Height: 52 wall height. Boulder Swirl (25 gauge overlap). 16 sand filter tank w/ 1 HP Pump. Kit also includes our newest and greatest Rx Clear sand filter alternative media to sand.Our luster alternative media is reusable, eco-friendly and made from 100% polyethylene, these tiny balls will last several pool seasons while filtering down to 10 microns. The item "12 x 18 Oval Meadow Swimming Pool with Boulder Overlap Liner, Sand Filter & Ladder" is in sale since Monday, April 15, 2019. This item is in the category "Home & Garden\Yard, Garden & Outdoor Living\Pools & Spas\Swimming Pools\Above-Ground Pools". The seller is "savemoreonpoolsupplies" and is located in Tonawanda, New York. This item can be shipped to United States.