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  • Swimline 21-foot round pool liner with overlap fit design
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Swimline LI2148BSO 21'x48/52" RD BOULDER SWIRL OL AG LINER

Swimline LI2148BSO 21'x48/52" RD BOULDER SWIRL OL AG LINER

$448.98
$538.77 $448.98
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Shipping calculated at checkout.

Perfectly fits and enhances 21' round above ground pools with durable style and easy installation.
Product Details

Enjoy a perfect fit and beautiful finish with the Swimline 21'x48/52" Round Boulder Swirl Overlap Above Ground Liner. Designed for above ground pools, this liner offers compatibility with both 48-inch and 52-inch walls.

Made with durable, high-quality vinyl, it provides long-lasting performance and resistance to UV fading. The classic boulder swirl print adds a stylish, deep blue touch to your pool’s interior.

Installation is quick and simple thanks to the overlap style, which allows for easy adjusting and securing. This liner is precision-cut to reduce wrinkling and ensure a smooth look and feel.

It’s a reliable and budget-friendly upgrade that boosts your pool’s appearance and functionality. Whether you're replacing or installing new, it’s built to impress and perform.

AI Review Summary ✨

⭐️⭐️⭐️⭐️⭐️

Customers rave about the liner’s reliable quality and perfect fit for above ground pools.

Many users love the stylish Boulder Swirl design that enhances the pool’s look.

Installation is often praised for being easy and straightforward, even for beginners.

Reviewers highlight the liner’s value, durability, and long-lasting performance in summer conditions.
Features
  • Fit Compatibility – Designed to fit 21-foot round above ground pools with 48" or 52" walls
  • Material Quality – Made with heavy-duty vinyl that resists fading, punctures, and wear
  • Overlap Design – Easy-to-install overlap style allows secure positioning and adjustments
  • Stylish Appearance – Boulder Swirl pattern adds a vibrant and refreshing pool interior
  • UV Protection – Treated to resist sun damage and maintain color over time
  • Smooth Finish – Precision-cut to reduce wrinkling for a clean, sleek pool bottom
  • All-Season Use – Built to withstand seasonal changes and water conditions
  • Budget-Friendly – High performance at a cost-effective price point
  • Quick Setup – Ideal for replacements or new above ground pool builds
  • Trusted Brand – Manufactured by Swimline, known for quality pool products
Specifications
  • Brand Swimline
  • Each Product Weight 57 pound
  • Shipping Dimensions 40 x 13.5 x 6.5 inch
  • Channel Non-Preferred
  • Liner Pattern Boulder
  • Liner Type Overlap
  • Master Carton Quantity 1
  • Minimum Sell Quantity 1
  • Pallet Quantity 1
  • Pool ShapeRound
  • UPC Code723815429070
Frequently Asked Questions

Q: Will this liner fit both 48" and 52" pool walls?

Yes, this liner is specifically designed to fit above ground pools with either 48-inch or 52-inch walls.

Q: Is this liner easy to install by myself?

The overlap design makes installation straightforward and beginner-friendly, especially with a second person to help hold the liner in place.

Q: Does this liner come with UV protection?

Yes, the liner is treated to resist UV rays, helping to prevent color fading and damage from sunlight exposure.
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Swimline is a favorite for fun and function, offering everything from pool floats and loungers to liners, covers, and maintenance gear. Whether you're upgrading your pool’s look or stocking up on cleaning essentials, Swimline delivers quality and creativity. At AquaDoc, we carry a wide range of Swimline pool products to help you enjoy and maintain your pool all season long.

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