Smartline 18 ft Round Swimming Pool Liner | Waterfall | Overlap Style | 48-52 Inch Wall Height | 25 Gauge Heavy Duty Virgin Vinyl | Designed for Steel Sided Above Ground Pools
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:
Only 10 left in stock, order soon!
Arrives
Aug 2 – Aug 4
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Material Type: 25 Gauge
Color: Waterfall
Features
- MEASURE TWICE, BUY ONCE Whether installing for the first time, or replacing an existing liner, the Waterfall 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 Intex or 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 Waterfall liner.
- HIGH QUALITY MATERIAL - Swim care-free 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: 25 x 14.5 x 6.5 inches
Item Weight: 46 pounds
Manufacturer: Swimline
Item model number: 171848BX
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Aug 2 – Aug 4
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: 25 Gauge
Color: Cracked Glass
Nice and strong, very pretty, fairly forgiving as to stretch and positioning. We did our liner replacement ourselves and although it was a lot of work, the end result was great. Also, for what it's worth, our pool is unheated (sunlight only) and our old liner was the default solid turquoise, much lighter in shade than this liner. Since installing the cracked glass liner, we've noticed a significant increase in pool temperature (5-10 degrees F warmer)--I'm assuming the darker color is absorbing more heat. Recommend having at least 2 people to install this. Also, we put down a Gorilla pad prior to installing this liner-- wanted that extra protection for the pretty new pool bottom!!
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Reviewed in the United States on August 2, 2016 by Cat's Laughing
Material Type: 25 Gauge
Color: Waterfall
Simple to install. Very durable. We've had it for 4 years now and have had no issues.
Reviewed in the United States on May 5, 2026 by marc albright
Material Type: 25 Gauge
Color: Cracked Glass
This liner came in fast!! We bought a 18 by 48 ft Intex pool about 5 years ago. The liner on this pool is the actual pool- wall and liner in one. So I bought this liner after months of debate. It works. I installed it and used some green house clips to secure it to the top bars of the Pool which also worked perfectly and the liner is in and it is AWESOME!!! We had to cut our own holes in the liner for the pump fittings.This liner did tear easily, lucky for us I noticed it right away. The clips are what tore it not us handling just the liner by our self. I do recommend this liner, it looks great and it works perfectly to fit our needs. Thank You Swimline!
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Reviewed in the United States on June 20, 2018 by Laura Stone
Material Type: 25 Gauge
Color: Waterfall
Ordered this liner because the liner in our pool ripped and we needed to quickly replace for an upcoming party. Liner was shipped and received 2 days earlier than expected. Quality of the liner is great, nice and thick and seems very durable. Only down side was it was a little too big. We have an 18' round pool and we ordered an 18' round liner. When installed, it was a little too big for the pool. The liner looks great in our pool, however due to it being a little to big, we were unable to ensure that all the wrinkles were out of the liner as the pool filled due to having to overlap the liner. Overall, it is a great product and definitely is going the job.
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Reviewed in the United States on July 18, 2026 by Nicole Clemons
Material Type: 25 Gauge
Color: Boulder Swirl
This is an excellent pool liner. Durable and relatively easy to install. Highly recommend adding wall foam for extra protection of the liner.
Reviewed in the United States on June 27, 2025 by Brenda M.
Material Type: 25 Gauge
Color: Caribbean
Beautiful liner, really sparkles
Reviewed in the United States on July 8, 2025 by Cyndi DiManno
Material Type: 25 Gauge
Color: Cracked Glass
Great quality
Reviewed in the United States on December 16, 2025 by Evelyn R. Defevers
Material Type: 25 Gauge
Color: Waves of Poseidon
We installed this liner in the beginning of the season and has held up very well. It is bright blue and makes the water look really nice. Was easy to install. Thickness is what is should be for a pool liner. Would recommend if needing a new liner for your pool.
Reviewed in the United States on July 16, 2019 by Jaimie88