Closed-cell 1/4 in. foam padding provides a smooth wall backing between your pool liner and the pool wall, preventing rust, corrosion, or other wall degradation from puncturing or wearing down your liner. One roll fits pools up to 20x40ft. One roll fits up to 20 ft. x 40 ft. Pool Size. Or it can be sold per foot.
1/8 in. foam padding provides smooth wall backing, preventing wall degradation from ruining your liner