SmartLine 21' Round Overlap Above-Ground Pool Liner — Waves of Poseidon, 54" Height, 25 Gauge

Made in the USA by pool industry professionals with over 50 years of experience, this SmartLine 21' Round Waves of Poseidon overlap liner is designed for above-ground pools and measures 54" high with a 25 gauge thickness. Built from 100% virgin vinyl, the liner offers built-in UV protection and is engineered to resist punctures, cracking and fading. Each liner is hand-folded to simplify installation and minimize wrinkles or imperfections. It endures harsh pool chemicals and prolonged sun exposure within a temperature range of -50°F to 130°F. An included gasket set helps prevent leaks and fits all thru-wall skimmers and water return lines.