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Size: 21-ft
Features
- Sophisticated Deep Blue Above-Ground Pool Liner: Designed with deep blues highlighted by crisp light blue, creating a shimmering water-like effect for a sophisticated look; ideal for new installations and pool liner replacements
- Standard-Gauge Vinyl Built for Lasting Durability: Featuring flexible standard-gauge vinyl construction, this above ground pool liner resists punctures from everyday swimming season after season
- Easy Overlap Installation for Steel Wall Pools: Fold the liner over the steel pool wall and secure with standard coping strips (sold separately); no professional installation needed, suited to first-time installers and seasoned pool owners
- Precise Fit for 21-ft Round Steel Wall Pools: This pool liner replacement fits 21-ft round above-ground pools with 48 to 54-in depth steel walls; not compatible with soft-sided pools
- Reliable Quality from Blue Wave: Featuring smooth, durable seam connections that resist separation and leaks, these pool liners are an ideal upgrade over glued or heat-sealed alternatives
Description
The Evening Bay Pool Liner from Blue Wave offers a contemporary take on a classic liner pattern — deep blues highlighted by a crisp light blue create a shimmering, water-like effect that gives above-ground pools a timeless, sophisticated appearance. Blue Wave’s proprietary welding process creates smooth, durable seam connections that resist separation and leaks season after season — an advantage over heat-sealed alternatives. Standard-gauge vinyl provides reliable strength for residential pools, resisting punctures from everyday swimming while built-in inhibitors help reduce fading and sun damage, keeping the deep blue pattern vibrant year after year. Installation is straightforward with the overlap design — fold the liner over the steel pool wall and secure with standard coping strips (sold separately). The overlap fit offers flexibility that suits both first-time installers and experienced pool owners, with no precise track alignment required, whether tackling a first- time install or a routine seasonal liner replacement for above ground pools. No professional installation required. Sized for 21-ft round above-ground steel wall pools with 48 to 54-in wall depths. Not compatible with inflatable or soft-sided pools. Pairs well with pool pad underlayment, automatic pool cleaners, and pool vacuums for a complete above-ground pool setup. Also available in additional round and oval sizes to suit a range of above-ground pool configurations. Backed by Blue Wave’s 15-year limited warranty, U.S. customer support and over 35 years of pool industry experience, this pool liner replacement delivers dependable performance and lasting value for pool owners.
Product Dimensions: 252 x 252 x 54 inches
Item Weight: 48.7 pounds
Manufacturer: Blue Wave Products
Item model number: NL504-20
Frequently asked questions
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