Call For Best Price 1-888-484-0864

Swimline 12' Round A/G Overlap Liner 48-52" Wall, Solid Blue | LI124820

Swimline SKU: LI124820
Swimline 12' Round A/G Overlap Liner 48 - 52" Wall, Solid Blue | LI124820 - Pool Cover - img - 1

Swimline 12' Round A/G Overlap Liner 48-52" Wall, Solid Blue | LI124820

Swimline SKU: LI124820
  • In stock, ready to ship
  • Inventory on the way
$109.99 Regular price $149.99
Instant Savings: $40Sale price $109.99
/
🕒 Order within -- hrs and -- min  for same-day shipping!
Questions about returns? View our return policy.
Free US Shipping - Shipping Policy

Swimline LI124820 Above Ground Pool Liner – 12 ft Round Overlap, Solid Blue, 20 Gauge (Fits 48"–52" Wall)

The Swimline LI124820 is a durable overlap-style vinyl pool liner made for 12 ft round above-ground pools with standard 48"–52" wall height. Featuring a classic solid blue finish, this liner is designed to provide a clean look and reliable performance when installed on a smooth, properly prepared pool base.

Key Features

  • Pool fit: 12 ft round above-ground pools
  • Wall height: Fits most 48"–52" walls (verify before ordering)
  • Installation style: Overlap (liner drapes over the pool wall and is secured with coping strips)
  • Color / pattern: Solid Blue
  • Thickness: 20 gauge (standard heavy-duty)
  • Construction: Heat-welded seams for strength and leak resistance
  • Designed for typical pool chemical and UV exposure with proper water balance

Specifications

  • Brand: Swimline
  • Part Number: LI124820
  • Pool Type: Above Ground
  • Pool Shape: Round
  • Pool Size: 12 ft
  • Wall Height Compatibility: 48"–52"
  • Liner Type: Overlap
  • Material: Vinyl
  • Color: Blue

Overlap Liner Installation Notes

  • Coping strips required: Overlap liners must be clamped at the top of the wall with coping strips (not a bead receiver track).
  • Measure before ordering: Confirm your pool is truly 12 ft round and your wall height is 48"–52".
  • Base prep matters: Use a smooth, level base and remove stones/roots to reduce puncture risk and wrinkles.
  • Consider a liner pad & cove: A floor pad and foam cove can help protect the liner and improve the finished fit.

Best For

  • Replacing a worn, leaking, or faded liner on a 12' round above-ground pool
  • Pool owners who want an overlap install (no bead track needed)
  • A simple, classic solid-blue appearance

Related Products

Maintenance Tips

  • Keep water chemistry balanced (especially pH, chlorine, and alkalinity) to help extend liner life.
  • Avoid letting the pool sit empty—liners can shrink or shift without water support.
  • Brush and vacuum regularly to reduce staining and keep debris from grinding into the liner floor.
  • When winterizing, use a properly fitted cover and remove heavy debris to reduce stress on the liner and pool structure.
Questions about returns? View our return policy.

Hours Of Operation: 

Monday - Friday: 8:00 am to 4:00 pm Phoenix Time

Saturday and Sunday: Closed

  • Orders costing more than  $300 WILL be required to have signature confirmation upon delivery.
  • Handling time is typically only 1 day.   
  • Any item ordered after 1pm Phoenix time, may not ship same-day.
  • Call us if you require expedited shipping and we can give you quotes based on your needs.

Return Policy:

  • All products, except as noted below, are eligible for return up to 30 days after receipt of item.
  • For returns, an RMA form must be filled out HERE or customers can call for additional help.
  • Shipping costs will be deducted from all returned items.
  • Any item that is missing accessories, original packaging, or is not returned in the same condition that it was received in, may be subject to a re-stocking fee up to 100% based on the condition we receive it in. 
  • Items broken, damaged, or inoperable due to installer error will not be refunded.
  • Fill out the return form or give us a call to obtain an RMA and return shipping label.
  • There are no returns on the Pentair Colorsync 618031
  • No returns on pool cleaners.
  • No returns on opened seals and o-rings.
  • No returns on capacitors.
  • If a light is returned because it "doesn't work" and it tests fine, the cost to ship and a re-stocking fee will be deducted from the refund.
  • All products denied upon arrival at customers house WILL be charged the cost to ship.
  • Visa Gift Card Promotions: Gift cards are sent within 14 days of the order. When accepting the Visa Gift card, you agree that if your order is returned or refunded, this amount will be deducted from the refunded amount. All Visa Gift cards are sent via email in an E-Gift Card format and are non refundable.