Swimline li1854mgu25 Pool Liner 18 Ft Round 54 in

Product Description

The SWIMLINE li1854mgu25 is a heavy-gauge, uni-bead above ground pool liner designed to fit 18-foot round pools with a 54-inch wall height. Manufactured from 100% virgin vinyl at a 25-gauge (Perma 2500) rating, it delivers measurably greater tear and chemical resistance than standard-gauge liners. An integrated Lamiclear coating protects the surface against pool chemical degradation and UV exposure, helping the Mystri Gold pattern retain color over multiple swim seasons. Pool service professionals and experienced DIYers install this liner as a direct replacement for worn or failing above ground pool liners.

This liner is sized specifically for 18-foot round above ground pools with a 54-inch wall height. The uni-bead design provides two installation options: it seats into a standard bead receiver track or hangs directly over the pool wall as a hung liner, eliminating the need for a separate bead adapter. The Mystri Gold pattern suits residential above ground pool installations where a finished, contemporary appearance is desired. Precision-engineered lap seams reinforce stress points along the floor-to-wall transition.

Key Features

• 25-gauge Perma 2500 virgin vinyl construction for above-standard tear and puncture resistance
• Lamiclear coating resists pool chemical attack and UV-related fading
• Uni-bead design fits both bead receiver track and hung-liner configurations
• Engineered for 18-foot round pools with a 54-inch wall height
• Precision lap seams reinforce the floor-to-wall joint for long-term durability
• Rated for cold crack resistance, maintaining flexibility in variable climates

Compatibility

Designed as a direct replacement liner for 18-foot round above ground pools with a 54-inch wall height that accept a uni-bead or hung-liner installation.

Installation Notes

Installation is typically performed by a pool service professional, though knowledgeable DIYers with prior liner experience can complete the work. Drain and remove the existing liner fully before fitting the new one, and inspect the pool wall and coping track for damage or corrosion prior to installation. Warm the liner in sunlight before spreading it to improve flexibility and reduce the risk of stress tears during fitting. Do not cut or trim the liner to adjust fit; use the appropriate bead receiver or hanging method as supplied.