SmartLine Stone Harbor 21' Round Unibead Above Ground Pool Liner — 52" Height, 20 Gauge

SmartLine 21' Round Stone Harbor Unibead liner for above ground swimming pools, 52" height and 20 Gauge construction. Made in the USA by top pool industry professionals with over 50 years of experience. Built from 100% virgin vinyl to resist punctures, cracks and fading, the material also includes built-in UV protection. Each liner is hand folded for easier installation and a smooth, wrinkle-free finish. Designed to tolerate harsh pool chemicals and prolonged sun exposure, it performs reliably in temperatures from -50°F to 130°F. A gasket set is included to help prevent leaks and fits all thru-wall skimmers and water return lines.