SmartLine 18' Round Seaside Lagoon Overlap Above Ground Swimming Pool Liner, 54" Height, 25 Gauge
SmartLine 18' Round Seaside Lagoon Overlap Above Ground Swimming Pool Liner, 54" Height, 25 Gauge
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SmartLine 18' Round Seaside Lagoon Overlap Above Ground Swimming Pool Liner, 54" Height, 25 Gauge

SmartLine 18' Round Seaside Lagoon Overlap Above Ground Swimming Pool Liner, 54" Height, 25 GaugeSmartLine 18 Round Seaside Lagoon Overlap Above Ground Swimming Pool Liner 54 Height 25 GaugeSmartLine 18 Round Solid Blue Overlap Above Ground Swimming Pool Liner 48 52 Height 25 GaugeSmartLine 18 Round Waterfall Overlap Above Ground Swimming Pool Liner 48 52 Height 25 GaugeSmartLine 18 Round Bedrock Overlap Above Ground Swimming Pool Liner 48 52 Height 20 GaugeSmartLine 18 Round Pebble Bottom Overlap Above Ground Swimming Pool Liner 54 Height 25 GaugeSmartLine 18 Round Sunlight Overlap Above Ground Swimming Pool Liner 48 52 Height 25 GaugeSmartLine 18 Round Swirl Bottom Overlap Above Ground Swimming Pool Liner 48 52 Height 25 GaugeSmartLine 18 Round Waterfall Overlap Above Ground Swimming Pool Liner 48 52 Height 20 GaugeSmartLine 18 Round Tidal Surge Overlap Above Ground Swimming Pool Liner 48 52 Height 25 GaugeSmartLine 18 Round Waves of Poseidon Overlap Above Ground Swimming Pool Liner 54 Height 25 GaugeSmartLine 18 Round Cracked Glass Overlap Above Ground Swimming Pool Liner 48 52 Height 25 GaugeSmartLine 18 Round Tidal Surge Overlap Above Ground Swimming Pool Liner 54 Height 20 GaugeSmartLine 18 Round Rock Island Overlap Above Ground Swimming Pool Liner 48 52 Height 25 GaugeSmartLine 18 Round Solid Blue Overlap Above Ground Swimming Pool Liner 54 Height 25 GaugeSmartLine 18 Round Overlap Liner 54 Height 25 Gauge Coastal RockSmartLine 18 Round Waterfall Overlap Above Ground Swimming Pool Liner 54 Height 25 GaugeSmartLine 18 Round Solid Blue Overlap Above Ground Swimming Pool Liner 48 52 Height 30 GaugeSmartLine 18 Round Waterfall Overlap Above Ground Swimming Pool Liner 54 Height 20 GaugeSmartLine 18 Round Antilles Dolphin Overlap Above Ground Swimming Pool Liner 54 Height 25 GaugeSmartLine 18 Round Rock Island Overlap Swimming Pool Liner 48 52 Height 20 GaugeSmartLine 18 Round Solid Blue Overlap Swimming Pool Liner 48 52 Height 20 GaugeSmartLine 18 Round Waves of Poseidon Overlap Above Ground Swimming Pool Liner 48 52 Height 25 GaugeSmartLine 18 Round Antilles Dolphin Overlap Above Ground Swimming Pool Liner 48 52 Height 20 GaugeSmartLine 18 Round Tidal Surge Overlap Above Ground Swimming Pool Liner 48 52 Height 20 GaugeSmartLine 18 Round Boulder Swirl Overlap Swimming Pool Liner 48 52 Height 30 GaugeSmartLine 18 Round Swirl Bottom Overlap Above Ground Swimming Pool Liner 48 52 Height 20 GaugeSmartLine 18 Round Caribbean Overlap Above Ground Swimming Pool Liner 48 52 Height 20 GaugeSmartLine 18 Round Bedrock Overlap Liner 48 52 Height 25 GaugeSmartLine 18 Round Antilles Dolphin Overlap Liner 48 52 Height 25 GaugeSmartLine 18 Round Boulder Swirl Overlap Above Ground Swimming Pool Liner 48 52 Height 20 GaugeSmartLine 18 Round Cracked Glass Overlap Above Ground Swimming Pool Liner 48 52 Height 20 GaugeSmartLine 18 Round Crystal Overlap Above Ground Swimming Pool Liner 54 Height 25 GaugeSmartLine 18 Round Caribbean Overlap Above Ground Swimming Pool Liner 48 52 Height 25 GaugeSmartLine 18 Round Waves of Poseidon Overlap Above Ground Swimming Pool Liner 54 Height 20 GaugeSmartLine 18 Round Boulder Swirl Overlap Above Ground Swimming Pool Liner 48 52 Height 25 GaugeSmartLine 18 Round Waves of Poseidon Overlap Above Ground Swimming Pool Liner 48 52 Height 20 Gauge
Gauge:25 Ga
Pattern:Seaside Lagoon
Assembled Product Height:54 in

Key item features

  • SmartLine 18' Round Seaside Lagoon Overlap Above Ground Swimming Pool Liner, 54" Height, 25 Gauge
  • Manufactured in the USA by top pool industry professionals for over 50 years
  • Crafted from 100% virgin vinyl, our liners resist punctures, cracks and fading and has built-in UV protection
  • SmartLine liners are hand folded, ensuring that they can be installed easily without wrinkles or imperfections
  • Our liners withstand harsh pool chemicals and extended sunlight in temperatures ranging from -50°F to 130°F
  • Prevent leaks with the included gasket set that fits all thru-wall skimmers and water return lines
Current price is $239.92
Price when purchased online
  • Free shipping
  • Free 30-day returns

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Ships to
Arrives by Thu, Jul 2
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Sold and shipped by Four Seasons Pool SupplyPro Seller
4.231738035264484 stars out of 5, based on 1985 seller reviews(4.2)
Free 30-day returns

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Customer ratings & reviews

4.7 out of 5 stars
stars326 ratings222 reviews
How item rating is calculated
  1. 5 stars83% (269)
  2. 4 stars11% (37)
  3. 3 stars3% (10)
  4. 2 stars0% (0)
  5. 1 star3% (10)

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Showing 1-3 of 222 reviews

Apr 3, 2026
Michael McDonald
5 out of 5 stars review

Seller Verified Purchase

It's been many years since I last bought a liner for our 18 ft. Round aboveground pool. You guys were very quick in shipping my order. Received everything no damage boxes. I can't wait to install it in late April to early May. Would love to tell you more about that timeline. Thanks.

Review from poolsupplies.com
Helpful?4C1EM7FSS7N5450471963
Aug 13, 2025
Michael weaver
5 out of 5 stars review

Seller Verified Purchase

The liner arrived very quickly. I think two days after I placed the order the directions were good. The liner went on just the way it should've I believe. Got it filled with water and enjoying the pool. Thank you for your quick service and quality product.

Review from poolsupplies.com
Helpful?4C1EM7FSS7N5450471963
Apr 26, 2026
Denise McLaughlin
5 out of 5 stars review

Seller Verified Purchase

I'm very pleased with my pool liner. My pool is a little over 26 years old. I hope with this new liner I get another 20 plus years. I also installed the foam wall and the rhino pad for extra protection because of the age of wall. It has made the pool soft to the touch and automatic pool vacuum glides smoothly across.

Review from poolsupplies.com
Helpful?4C1EM7FSS7N5450471963