SmartLine 12' x 21' Oval Above Ground Pool Liner - Boulder Swirl Overlap, 48"/52" Height, 20 Gauge

Designed for 12' x 21' oval above-ground pools, this SmartLine Boulder Swirl overlap liner is 20 Gauge with a 48"/52" height. Made in the USA by top pool industry professionals with over 50 years of experience, it is constructed from 100% virgin vinyl to resist punctures, cracks and fading and includes built-in UV protection. Each liner is hand-folded to allow smooth, wrinkle-free installation. The material endures harsh pool chemicals and prolonged sun exposure, performing reliably in temperatures from -50°F to 130°F. A gasket set is included to prevent leaks and fits all thru-wall skimmers and water return lines.