Smartline Boulder Swirl Pool Liner - 21 ft round, 25 gauge

Swimline ★ 3.5/5 · ItemOracle Score Premium

$305 USD
Price subject to change
Check current price on Amazon →
Smartline 21 ft Round Swimming Pool Liner | Boulder Swirl | Overlap Style | 48-52 Inch Wall Height | 25 Gauge Vinyl | for Steel Sided Above Ground Pools | Gasket Kit Included

Round 21 ft pool liner with Boulder Swirl pattern. Durable 25 gauge vinyl for steel sided above ground pools; gasket kit included. Customer note: easy installation and good value

Highlights

  • 25 gauge durability
  • includes gasket kit
  • distinctive Boulder Swirl pattern

Pros

  • durable 25 gauge vinyl
  • includes gasket kit
  • boulder swirl pattern
  • easy installation guidance
  • strong fit with proper measurements

Cons

  • requires correct size measurement
  • outside-wall height determination needed
  • instructions suggest sun-warming vinyl before install

Best For

  • above-ground pool liner replacement
  • new pool installation planning
  • patterned liner for aesthetic update
  • DIY pool maintenance
  • seasonal pool upkeep
  • measurement-check before purchase

Features

  • Round pool liner for 21 ft diameter with 48–52 in wall height, overlap style
  • Boulder Swirl pattern with blue rock accents and water backdrop; North American cut material hand-folded to minimize creasing
  • Overlap installation: liner drapes over wall, bottom seam aligned near cove, secured with coping strips; no bead receivers needed
  • Includes universal gasket set compatible with standard or wide-mouth skimmers and returns to help prevent leaks
  • Pre-installation guidance: warm vinyl in sun 1 hour and install at 70–80°F for stretch; suitable for flat-bottom pools, note not for Pop-Up pools

Tags

Similar Products