Swimline li183354mgu25 Pool Liner Oval 18x33 54in 25 Mil

Product Description

The SWIMLINE li183354mgu25 is a heavy-gauge, 25 mil Uni-Bead above ground pool liner designed for oval pools measuring 18 by 33 feet with a 54-inch wall height. Constructed from 100% virgin vinyl with a Lamiclear protective coating, this liner resists UV fading and chemical degradation to maintain color and structural integrity over multiple seasons. The Uni-Bead design seats directly into a standard bead receiver track, eliminating the need for coping strips and producing a tight, wrinkle-free finish. Pool service professionals and experienced DIYers install this liner as a direct replacement for worn or failing above ground pool liners.

This liner is suited for residential above ground oval pool installations requiring an 18-foot by 33-foot footprint and a 54-inch wall. The Mystri Gold pattern is factory-applied and protected by the Lamiclear coating. The Perma 2500 construction provides a 25 mil gauge rating, offering greater resistance to tearing, chemical breakdown, and UV fading compared to standard-gauge liners. Cold crack resistance is built into the vinyl compound, allowing the liner to remain flexible during cold-weather installations and temperature fluctuations across seasons.

Key Features

• 25 mil heavy-gauge Perma 2500 virgin vinyl construction for enhanced tear and puncture resistance
• Uni-Bead design fits standard bead receiver tracks without coping strips
• Lamiclear coating protects against UV fading and pool chemical degradation
• Cold crack resistance maintains liner flexibility in low-temperature conditions
• Precision-cut and reinforced seams for a consistent, wrinkle-free fit
• Mystri Gold pattern integrated into liner construction

Compatibility

Designed as a direct replacement liner for oval above ground pools measuring 18 by 33 feet with a 54-inch wall height and a standard bead receiver track.

Installation Notes

Installation is performed by pool service professionals or qualified technicians. Drain and remove the existing liner completely before fitting the new liner, and inspect the pool wall and cove for damage prior to installation. Warm the liner before spreading to improve flexibility and reduce the risk of creasing. Follow local pool codes and manufacturer guidelines for proper seating in the bead receiver track.