Smartline 18 ft Round Swimming Pool Liner | Boulder Swirl | Overlap Style | 48-52 Inch Wall Height | 25 Gauge Vinyl | for Steel Sided Above Ground Pools | Gasket Kit Included
Condition: New
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30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
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Availability:
In Stock.
Arrives
Sep 6 – Sep 7
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Material Type: 25 Gauge
Size: 18' Round
Features
- MEASURE TWICE, BUY ONCE Whether installing for the first time, or replacing an existing liner, the Boulder Swirl pattern offers durability while not breaking the bank. Be sure to check the measurements of your swimming pool to assure the correct size is purchased. Pool height is determined by measuring the outside wall from the ground to underneath the top rail. Round pool size is determined by measuring from the center point wall to wall in order to obtain the diameter.
- NO TROUBLE TO INSTALL - Overlap liners are draped over the walls of the pool during the installation process. Once the bottom seam is even near the cove, the liner is ready to be secured. This material is held in place through the use of coping strips prior to putting the top rails back onto the pool. Bead receivers are not needed for this type of liner. The liner is made to work with pools which have a flat bottom and wall heights of 48 or 52. ***Will not work with Pop-Up pools***
- STAY COOL IN THE POOL Enjoy the warm weather while spending quality time with family and friends. Your backyard aboveground pool will surely become the place to be during those hot summer days. Stay cool in more ways than one with the Boulder Swirl liner.
- UNIVERSAL GASKET SET - The included kit is for the pools skimmer and return. This skimmer gasket will work with either standard sized skimmers or wide-mouth versions. These pieces will help prevent corrosion of the pool wall and should be replaced each time a new liner is installed as they become dry over time which could cause leaks.
Package Dimensions: 24 x 14 x 5 inches
Manufacturer: Swimline
Item model number: A171848AJ
Is Discontinued By Manufacturer: No
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Sep 6 – Sep 7
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Material Type: 25 Gauge
Size: 28' Round
Bought this for my pool when the old one busted last year. Easy to install and color holds up great as I installed it last year and color is still the same. Size fit great and love this pattern. Would buy again very great value.
Reviewed in the United States on June 2, 2025 by Kennedy K.
Material Type: 25 Gauge
Size: 24' Round
I recently purchased this 24-foot round pool liner to replace the old one in my above-ground pool, and after a few weeks of use, I’m generally pleased with the product. Here’s a breakdown of the pros and cons: Pros: Perfect Fit: This liner fit my 24-foot round pool exactly as expected. It’s made to be a snug, custom fit, and the measurements matched up perfectly with the dimensions provided. Installation was relatively straightforward, especially with a helper. Durable Material: The liner feels thick and durable. After a few weeks in the pool, I haven’t noticed any issues with tears or thinning, even with the sun exposure and chemical treatments. It seems like it will hold up well over time. Nice Design: The liner has a classic blue design with a clean, crisp look that brightens up the pool. It gives the pool a fresh and inviting appearance. The print is vibrant and hasn’t shown signs of fading despite being in full sunlight. Good Value for Money: Compared to other liners I’ve looked at, this one offers a good balance of quality and affordability. It’s priced competitively, especially considering the size and quality of material. Resistant to Chemicals: After using it for a few weeks, the liner seems to handle pool chemicals well. There’s been no discoloration or damage from chlorine or other standard pool treatments. Cons: Installation Can Be Challenging: While the liner fits well once in place, getting it into the pool was a bit tricky. It requires careful stretching and adjustment to avoid wrinkles or bunching, and a second pair of hands definitely helps during installation. Liner Color Can Fade: While the print looks great now, I’m concerned about how it might hold up over time with constant exposure to sunlight and pool chemicals. I’ve had some liners in the past that faded faster than expected, so I’m hoping this one proves more resistant. Conclusion: This 24-foot round pool liner is a solid choice for those looking to replace their existing pool liner without breaking the bank. It fits well, looks great, and seems durable enough for regular use. While installation can be a bit tricky and the material isn’t as thick as some premium options, it offers excellent value for money and should last for a few seasons with proper care. Overall, I’m happy with the purchase and would recommend it to anyone with a similar-sized above-ground pool.
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Reviewed in the United States on November 9, 2024 by Misty Ingram
Material Type: 25 Gauge
Size: 18' Round
Easy to install, perfect color. Thick as expected
Reviewed in the United States on June 13, 2025 by Amazon Customer
Material Type: 30 Gauge
Size: 30' Round
The liner is good, just would be nice a little extra on the edges.
Reviewed in the United States on May 19, 2025 by Amazon Customer
Material Type: 25 Gauge
Size: 18' Round
Sturdy pool liner, I was pleased with it.
Reviewed in the United States on June 12, 2025 by jean szabo
Material Type: 30 Gauge
Size: 18' Round
A couple of years ago we moved our 18 foot round pool ordered a new liner, thinking we would need to replace it but the old one which was not bought by this company held up very well. so here we are two years laterI decided this was gonna be the year we would replace it hire a professional installer. Had it installed and started to fill water in it within a couple of days. The water wasn’t holding. We couldn’t figure out why? finally we noticed a very small area where the seem wasn’t holding at the bottom of the pool. contacted the company and they said that they offer no warranty because I had purchased this liner two years previous the liner was stored in our spare bedroom. you can see by the pictures that the liner was well taken care of it. It’s a shame they don’t stand behind their product and I don’t recommend using their products. Even the installer said after 20 some years of doing this job it was very obvious that the scene had not been properly put together.
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Reviewed in the United States on May 14, 2025 by Amazon Customer Amazon Customer
Material Type: 25 Gauge
Size: 18' Round
Great product
Reviewed in the United States on May 16, 2025 by John Baker John Baker
Material Type: 30 Gauge
Size: 24' Round
Perfect sizes and well made
Reviewed in the United States on May 5, 2025 by Marco Linares Marco Linares