SmartLine Unibead Above-Ground Pool Liner — 18' x 33' Oval (Boulder Swirl), 52" Height, 20 Gauge

Fits 18' x 33' oval above-ground pools: SmartLine Boulder Swirl Unibead liner, 20 gauge with a 52" wall height. Made in the USA by leading pool professionals with over 50 years of experience, this liner is built from 100% virgin vinyl for long-lasting performance. The material resists punctures, cracking and fading and includes integrated UV protection to reduce sun damage. Each liner is hand-folded to simplify installation and minimize wrinkles or imperfections. Engineered to handle harsh pool chemicals and extended sun exposure 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.