SmartLine 18' Round Boulder Swirl Unibead Above-Ground Pool Liner — 52" Height, 20 Gauge

Made in the USA by pool industry experts with more than 50 years of experience, this SmartLine 18' round Unibead liner in Boulder Swirl is a heavy-duty replacement liner for above-ground pools (52" height, 20 gauge). Constructed from 100% virgin vinyl with built-in UV protection, the material is formulated to resist punctures, cracking and color fade. The liner’s hand-folded production method minimizes wrinkles and makes installation smoother and neater. Engineered to tolerate harsh pool chemicals and long sun exposure, it performs reliably in extreme temperatures from -50°F to 130°F. A gasket set is included to help prevent leaks; it is compatible with all thru-wall skimmers and water return lines.