SmartLine 21' x 41' Oval River Slate Overlap Above Ground Pool Liner — 48"/52" Height, 25 Gauge

Manufactured in the USA by experienced pool professionals with over 50 years in the industry, this SmartLine 21' x 41' Oval River Slate overlap liner is built for long-lasting performance. Constructed from 100% virgin vinyl with built-in UV protection, the material resists punctures, cracking and color fade. Each liner is hand-folded to simplify installation and minimize wrinkles or imperfections. Designed to tolerate harsh pool chemicals and prolonged sun exposure, it performs across a temperature range of -50°F to 130°F. The package includes a gasket set to help prevent leaks and is compatible with all thru-wall skimmers and water return lines.