Smartline 18 ft Round Swimming Pool Liner | Caribbean | Overlap Style | 48-52 Inch Wall Height | 25 Gauge Vinyl | for Steel Sided Above Ground Pools | Gasket Kit Included
Condition: New
Buy Now, Pay Later
As low as
$42.50
/ mo
Learn more
- – 6-month term
- – No impact on credit to apply
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
16 left in stock
Arrives
Jun 5 – Jun 9
Recently Viewed
Size: 18' Round
Color: Caribbean
Features
- MEASURE TWICE, BUY ONCE Whether installing for the first time, or replacing an existing liner, the Caribbean 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 Caribbean 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 widemouth 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.
Brand: Smartline
Product Dimensions: 216"L x 216"W x 52"H
Shape: Round
Color: Caribbean
Material: 25 Gauge
Brand Name: Smartline
Included Components: Filter Pump, Skimmer
Manufacturer: Swimline
Model Number: A171848AM
Manufacturer Part Number: A171848AM
Unit Count: 1.0 Count
Item Dimensions L x W x H: 216"L x 216"W x 52"H
Shape: Round
Color: Caribbean
Material Type: 25 Gauge
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Jun 5 – Jun 9
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.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
![[PATENTED] POOLHACKER 2026 Upgrade 2 Sets Poolside Storage Basket - Original Above Ground Pool Accessories, Swimming Pool Storage Basket with Pool Cup Holder, Poolside Storage to Organize Cup Towel](https://m.media-amazon.com/images/I/817z1lzfULL._AC_US500_.jpg)
Top Amazon Reviews
Beautiful liner. Perfect fit. delivery on time.
Reviewed in the United States on April 25, 2026 Reviewed in the United States on April 25, 2026 by Brenda Wineland
Install went great so far! We still need to cut the skimmer and return. We can’t attest to how durable it is yet, but it fit perfectly.
Reviewed in the United States on March 21, 2026 Reviewed in the United States on March 21, 2026 by Rebeccah
Size: 12' Round
Color: Caribbean
great liner quality is as good as any liner at a much cheaper price. better then anticipated
Reviewed in the United States on May 6, 2026 by Arthur S.
Size: 15' x 30' Oval
Color: Caribbean
It's a beautiful liner but if you have a 52" pool height there is barely enough liner to even hang over. In some places we only have about 1/2 inch. I sure hope it stretches a bit as it fills.
Reviewed in the United States on July 15, 2025 by Lisa D Best
Kiddos love the look of it and the dark blues really stand out and look great. Material is durable and was still easy enough to work with. Was able to install it alone in one afternoon. My above ground pool has a deep end dug into the ground approx 16" deeper then the ground level on my 52" pool. This liner had no problem stretching to fit as the pool filled up. The durability of the liner made smoothing out the wrinkles a little bit of a chore but was still more then manageable by myself. Liner has been installed for 3 months now. Still looks great, no holes, and no weak spots that I could find due to stretching. (and i did spend time looking/feeling for any weak areas). Highly recommended. Only thing I can say for the buyer, if you're buying a new skimmer to replace with your liner at the same time, your skimmer will most likely include gaskets already so don't be like me and waste money buying the combo liner with gaskets.
...
show more
Reviewed in the United States on June 17, 2019 by Jay
Size: 21' Round
Color: Caribbean
Love it!! Kids love it !! Holds up well. Going on 3 rd year with it !!
Reviewed in the United States on January 3, 2026 by Amanda Waddle
Size: 18' Round
Color: Caribbean
I bought this May 10, 2025, and went to clean my pool this year and notice that this liner was already dry rotted!! I'm not a happy person as of right now!! I'm tired of replacing my liner!! This should've lasted way longer than not even a year! Got in touch with the company and even sent a picture and they told me that a chemical substance was put in my pool. The only chemicals in my pool were chlorine and shock! And of course they’re not taking responsibility for it and told me that they would give me a discount on another liner which I told them that they could keep because the liner should’ve lasted longer than a year! I don’t want to buy another one just replace this one!!
...
show more
Reviewed in the United States on May 4, 2026 Reviewed in the United States on May 4, 2026 by Cindy
Size: 16' x 32' Oval
Color: Antilles Dolphin
This liner is made with quality vinyl. The design looks beautiful when filled with water. I purchased the 32x16 to replace my liner and this one worked perfectly.
Reviewed in the United States on June 21, 2025 by Resann