SmartLine 18' x 40' Oval Boulder Swirl Overlap Above Ground Pool Liner, 48"/52" Height, 25 Gauge

Made in the USA by top pool industry professionals with over 50 years of experience, this SmartLine 18' x 40' Oval Boulder Swirl Overlap liner is designed for above ground pools. Fabricated from 100% virgin vinyl, it offers built-in UV protection and is engineered to resist punctures, cracks and fading. Each liner is hand-folded so installers can achieve a smooth, wrinkle-free fit with fewer adjustments. The material tolerates harsh pool chemicals and prolonged sun exposure, performing reliably in temperatures ranging from -50°F to 130°F. A gasket set is included to help prevent leaks; the kit is compatible with all thru-wall skimmers and water return lines.