SmartLine Tidal Surge Unibead 21' Round Above-Ground Pool Liner — 54" Height, 20 Gauge

Made in the USA by leading pool industry professionals with over 50 years of experience, this SmartLine Tidal Surge Unibead liner is built for lasting performance. Constructed from 100% virgin vinyl, the liner offers strong resistance to punctures, cracks and fading and includes built-in UV protection for prolonged outdoor use. Each liner is hand-folded to simplify installation and minimize wrinkles or imperfections. Engineered to tolerate harsh pool chemicals and continuous sunlight, it remains stable across temperature extremes from -50°F to 130°F. A gasket set is included to prevent leaks and is compatible with all thru-wall skimmers and water return lines.