SmartLine 21' Round Swirl-Bottom Expandable Overlap Pool Liner, 72" Height, 25 Gauge

Manufactured in the USA by top pool industry professionals with over 50 years of experience, this SmartLine 21' round swirl-bottom expandable overlap liner measures 72" in height and is 25 gauge. Constructed from 100% virgin vinyl with built-in UV protection, the liner resists punctures, cracks and fading for long-lasting appearance and performance. Each liner is hand folded to simplify installation and minimize wrinkles or imperfections. It withstands harsh pool chemicals and extended sunlight exposure, performing reliably in temperatures from -50°F to 130°F. A gasket set is included to prevent leaks and fits all thru-wall skimmers and water return lines.