SmartLine Mosaic Diamond Unibead Above-Ground Oval Pool Liner — 18' x 33', 52" Height, 20 Gauge

Manufactured in the USA by seasoned pool professionals with over 50 years of experience, this SmartLine 18' x 33' oval liner features the Mosaic Diamond pattern and Unibead fit, sized for a 52" wall and produced at 20 gauge. Constructed from 100% virgin vinyl, the liner is formulated to resist punctures, cracks and fading and includes built-in UV protection for long-lasting appearance. Each liner is hand-folded to simplify installation and minimize wrinkles or imperfections during setup. Engineered to tolerate harsh pool chemicals and prolonged sun exposure, it performs reliably across temperatures from -50°F to 130°F. A gasket set is included to help prevent leaks and is designed to fit all thru-wall skimmers and water return lines.