SmartLine 21' x 41' Round Coastal Rock Overlap Above Ground Pool Liner, 54" Height, 20 Gauge

Made in the USA by pool industry professionals with over 50 years of experience, this SmartLine Coastal Rock overlap liner is designed for 21' x 41' round above ground pools and is 54" in height with 20 gauge thickness. Constructed from 100% virgin vinyl, the material includes built-in UV protection and is formulated to resist punctures, cracks and fading. Each liner is hand folded to simplify installation and minimize wrinkles or imperfections for a smooth fit. Durable against harsh pool chemicals and prolonged sun exposure, it performs across a wide temperature range from -50°F to 130°F. A gasket set is included to help prevent leaks and fits all thru-wall skimmers and water return lines.