Search  for anything...

Smartline 18 ft Round Swimming Pool Liner | Sunlight

Based on 158 reviews
Condition: New
Checking for the best price...
$299.99
Save $1,999.01 was $2,299.00

Buy Now, Pay Later


As low as $50.00 / mo
  • – 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, Zip, Apple Pay, and Google Pay. 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 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: In Stock.
Fulfilled by Save More On Pool Supplies

Arrives Nov 1 – Nov 3
Order within 13 hours and 21 minutes

Available payment plans shown during checkout

Protect Your Purchase

Easy claims online, fast replacements, no fees

Checking for protection plans...

At a glance

Condition
New
Size
18' Round
Color
Sunlight
Model
171860BO
Weight
52 lb

Features 4

  • MEASURE TWICE, BUY ONCE Whether installing for the first time, or replacing an existing liner, the Sunlight 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. 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. Expandable pool liners have been designed to conform to above-ground swimming pools with dished-out middles and wall heights of 60. 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 Sunlight 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.

Specs 4

Package Dimensions 25 x 14.5 x 6.5 inches
Item Weight 52 pounds
Manufacturer Smartline
Item model number 171860BO

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Nov 1 – Nov 3

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.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • Zip Pay in 4
  • Financing through Apple Pay
  • Financing through Google Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


BEST liner! It does stretch! Our pool is 6ft deep (1ft deeper than the original)in the middle!
Size: 21' Round Color: Sunlight
Perfect size and the material is great! My husband bought a different brand last time and it didn't last at all! This brand was our 1st replacement liner and this is the 2nd time we are buying this one. I'll only buy this liner from now on!
Reviewed in the United States on March 31, 2026 by Kathi Beyer

Perfect liner
Size: 15' x 30' Oval Color: Sunlight
Great price! . I had it installed by professional installers who said it was of great quality and easy to install.
Reviewed in the United States on October 10, 2025 by Tizzy

Good thick Material
Size: 27' Round Color: Sunlight
Good quality, heavy liner. Lots of extra material hang over sides. Definitely needs several people, beer and pizza to install. 😁Tip...Be sure to follow instalation video. We didn't wear shoes and had several dips in bottom from heels of our feet. Use the flat board taped to shoes? But overall item, beautiful liner. Held well for 3 years til pool sides rusted and buckled. ... show more
Reviewed in the United States on April 20, 2025 by Georgia

Fast shipping
Size: 21' Round Color: Sunlight
Shipped super fast. Strong quality and I had plenty of extra for my 52 inch pool.
Reviewed in the United States on June 22, 2020 by Shelby Wilcox-Dumas

Pool Liner
Size: 24' Round Color: Sunlight
Love! Absolutely recommend
Reviewed in the United States on July 20, 2026 by JUDY WALKER

Beautiful color, easy install
Size: 28' Round Color: Sunlight
This was the easiest pool liner I have ever installed. I did this one by myself. First day I ground prep and put down black pool pad over the existing old liner. Second day, I followed instructions to unfold pool liner. Watched a guy on YouTube and I actually have water on the pool with no wrinkles. Pool is 29’ round and 52” sides, liner has plenty of drop on outside. Still have to put the cap tops around the pool but you can see the pics. ... show more
Reviewed in the United States on July 14, 2024 by JB-Smile

Durable
Size: 21' Round Color: Sunlight
This is is a great pool liner, looks beautiful once installed. I had to purchase a new one because of a major sceptic tank issue, while the repair men jetted the drain lines an old drain line that was thought not connected was and the drain pipe was right at the edge of the pool liner and the jetter blew a hole straight thru the liner. It took a good 7 to 10 minutes of jetting before it ripped the liner so i think the liner is very durable to stand up against a commercial jetter. 😅 crazy situation , but I really like this liner and recommend it to other customers. ... show more
Reviewed in the United States on August 3, 2023 by Amanda Batista

Bad bad bad
Size: 24' Round Color: Swirl Bottom
DONT Do it is not the thickness it states supper thin comes apart at the seams looks awful and cheap the bottom is not evenly printed impossible to put it in right because it’s wrong and after 16 hours o diligently straightening came apart when water started going in
Reviewed in the United States on June 20, 2026 by Rhianna M Tibbetts
Checking for best price...