Smartline 18 ft x 33 ft Oval Swimming Pool Liner | Boulder Swirl | Unibead Style | 54 Inch Wall Height | 25 Gauge Heavy Duty Virgin Vinyl | Designed for Steel Sided Above Ground Pools
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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:
Only 7 left in stock, order soon!
Arrives
Jul 31 – Aug 2
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Material Type: Boulder Swirl
Size: 18' x 33' (Oval)
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.
- INSTALL IN A SNAP OR A HOOK - This 18' x 33' oval unibead style liner works with pools with flat-bottoms measuring 54". For an overlap style pool, simply open up the j-hook portion and slip this over the pool wall. For beaded style pools, use the standard bead after removing the j-hook portion along the score or groove mark. This will leave only the standard bead which is inserted into the bead receiver opening. ***Will not work with Intex or Pop-Up pools***
- STAY COOL IN THE POOL Enjoy the warm weather while spending quality time with family and friends. Your backyard 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.
- HIGH QUALITY MATERIAL - Swim carefree knowing your liner can tough it out through abrasion, chemicals and UV fading thanks to the use of Lamiclear technology. The layers are made of an acrylic top coat, a UV resistant print layer, and a 100% virgin vinyl base. This material is then welded and cut for a flawless fit and finish. A 25-year limited warranty is included protecting against defects in material and workmanship.
Package Dimensions: 40 x 21.5 x 6.5 inches
Item Weight: 89 pounds
Manufacturer: Smartline
Item model number: 17042CH
Is Discontinued By Manufacturer: No
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Jul 31 – Aug 2
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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Top Amazon Reviews
Material Type: Boulder Swirl
Size: 30' (Round)
This product is very nice and works great in our pool. No issues with install or use. Would buy again.
Reviewed in the United States on December 25, 2025 by Amazon Customer
Material Type: Crystal Tile
Size: 18' x 33' Oval
Could not be happier! Easy to install and looks amazing 👏
Reviewed in the United States on August 20, 2025 by Amazon Customer Amazon Customer
Material Type: Boulder Swirl
Size: 27' (Round)
We installed this liner into our 27' x 54" pool. We did also purchase the floor padding and the wall insulation. This was our first time installing a pool liner. It was easier than we thought! It took us about 2 hours or so to have it installed and filling. It helps to have people on the outside of the pool to attach the top rails as you go along with snapping the liner over the top edge of the pool. We had our son doing that as we were inside the pool putting the liner up. Wasn't as hard as I thought it was going to be. Once it was up, we did attach a shop vac to the water return and that was amazing as it snugged the liner against the wall of the pool so we could work out the wrinkles before putting the water in. We purchased the padding for the bottom of the pool and the insulation for the pool walls. These were definitely worth the money. Easy to install and helped the liner go in so nicely. No wrinkles! Hoping this lasts for years to come!
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Reviewed in the United States on June 1, 2023 by Amazon Customer
Material Type: Crystal Tile
Size: 24' (Round)
Came with no leaks. Easy to install with the lip and looks great!
Reviewed in the United States on September 22, 2025 by Zane N Zane N
Material Type: Crystal Tile
Size: 21' (Round)
Fit as it should with help from friends!! A bit of confusion and sweat but we got it done!!
Reviewed in the United States on November 14, 2025 by Nicholas Nicholas
Material Type: Crystal Tile
Size: 30' (Round)
If I could give this liner zero stars I would. The liner was riddled with holes all so tiny we didn't even see them until after it easy installed and the pool leaked. We spent weeks trying to find the leak. The holes were all about 9 inches from the bottom of the pool and all the way around the perimeter of the pool. Customer service was terrible. They said the holes were caused by us and that it would not be covered under warranty. They offered to send a patch kit for the 60 plus holes that we were able to find. Our pool drained entirely in less than two weeks thanks to these holes.
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Reviewed in the United States on August 28, 2025 by Jennifer Evans Jennifer Evans
Material Type: Crystal Tile
Size: 15' (Round)
Wonderful and not too difficult to install
Reviewed in the United States on October 10, 2025 by jte0610
Material Type: Crystal Tile
Size: 24' (Round)
It was easy to put on and it looks great.
Reviewed in the United States on June 22, 2025 by Renia Robinson