18ft round pool liner replacement delivers a secure overlap fit and cushioned comfort for 52in wall height above-ground pools. Built from durable vinyl, it helps protect the pool base while standing up to regular chlorine use and outdoor weather. Designed for flat-bottom round pools, it installs quickly by draping and securing with an even overlap, making liner swaps less time-consuming and keeping your pool surface smooth underfoot.

When your current liner is worn, stretched, or leaking, a correctly sized overlap liner is the quickest path back to a clean, comfortable swim. This standard-gauge vinyl liner is sized specifically for 18ft round pools with 52in walls, helping reduce shifting and wrinkles during setup. For easier handling, air the liner before installation to keep it flexible, then smooth and secure for an even finish. Grab yours today and get your pool ready for the season.