SmartLine 18' x 40' Oval Boulder Swirl Overlap Above-Ground Pool Liner, 48"/52" Height, 20 Gauge

Fits 18' x 40' oval above-ground pools (overlap style) in the Boulder Swirl design. Manufactured in the USA by top pool industry professionals for over 50 years, this 20 Gauge liner is made from 100% virgin vinyl for long-lasting performance. The material is formulated with built-in UV protection and resists punctures, cracks and fading from prolonged sun exposure. Formulated to tolerate harsh pool chemicals and temperature extremes from -50°F to 130°F. SmartLine liners are hand folded to simplify installation and minimize wrinkles or imperfections. A gasket set is included to help prevent leaks and is compatible with all thru-wall skimmers and water return lines.