Search  for anything...
LifeGuard Pond Liner

Lifeguard 20 ft. x 25 ft. EPDM Pond Liner – 45-Mil Rubber

  • Based on 680 reviews
Condition: New
Checking for the best price...
$590.00 Why this price?
Save $70.00 was $660.00

Buy Now, Pay Later

As low as / mo
  • – Up to 36-month term if approved
  • – 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 Amazing Pond Supplies
Arrives Saturday, Sep 26
Order within 17 hours and 32 minutes
Available payment plans shown during checkout
Protection Plan Protect Your Purchase
Checking for protection plans...

Recently Viewed

Material Type: 20' Width


Style: 25' Length


Features

  • 45-mil EPDM Rubber Liner - Durable, flexible, UV and puncture resistant, fish and wildlife safe for koi ponds, water gardens, and aquaponics systems.
  • No Plasticizers Wont Crack or Split Unlike vinyl liners, EPDM stays flexible year-round without becoming brittle over time.
  • Easy to Install & Shape Lays flat and conforms easily to curves, shelves, and other pond featuresperfect for DIY installations.
  • Certified Fish & Wildlife Safe Backed by Safe for koi, turtles, and aquatic life. Certified by Guardian Systems Inc. and supported by a 25-year manufacturers warranty for long-term peace of mind.

Description

Pond Liner is the foundation for any Koi pond, water garden, or waterfall. From residential backyard ponds to commercial water features. 45-Mil EPDM LifeGuard Pond Liner is the preferred choice of professional installers Because its is flexible , puncture resistant and will last at least 25 years! LifeGuard EPDM is an elastomeric compound (rubber) that is manufactured from ethylene, propylene, and a small amount of diene monomer. These ingredients are synthesized to produce a product that exhibits a high degree of ozone, ultraviolet, weathering and abrasion resistance, and outstanding low temperature flexibility. These ingredients also contribute to resistance to acids, alkalis, and oxygenated solvents (i.e. ketones, esters, and alcohols). Don't Be fooled by Chinese companies marketing Plastic as EPDM! The Best EPDM RUBBER LINERS ARE MADE IN THE USA Features and Technical Specs: The formula for sizing a pond liner is: (Pond Length') + (2 x Pond Depth') + (2') = Liner Length' (Pond Width') + (2 x Pond Depth') + (2') = Liner Width' So... if you want a finished pond that is 12' long, 7' wide, and 3' deep; then using the formula above, the liner size you need is: (12') + (2 x 3') + (2') = 20' Long (7') + (2 x 3') + (2') = 15' Wide This basic formula will work for ALL pond shapes. Fish Safe EPDM LifeGuard Pond Liner is Certified Fish & Wildlife Safe by Guardian Systems, Inc. Natural and beutiful Water Gardens are great habitat for plants and fish. Just add water and your yard will come to life! Easy to Shape and Fold EPDM Liners Are strong and Flexible so they make waterfalls like these easy to build. Easy to work with LifeGuard EPDM Rubber liner is easy to seam, attach to filters & repair, unlike Plastic PVC & LLDPE Professional Builds Use extra Pond Liner or Underlayment as padding for boulders LifeGuard Pond Liners We Box Liners from 5' x 5' through 30' X 30' Large Liners are folded and put on cardboard cores for easy dispensing and shipping Liner cores Range in size from 5 feet wide to 12.5 feet wide. 45 Mil EPDM 45 Mil & Underlayment 60 Mil EPDM 60 Mil & Underlayment Underguard Underlayment

Product Dimensions: 36 x 12 x 12 inches


Item Weight: 150 pounds


Manufacturer: Anjon Manufacturing


Item model number: LG20X25-45


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Sep 26

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.

Similar Products

Top Amazon Reviews

    • Quality product, but do check the liner laid out for holes before you use it
Material Type: 15' Width Style: 25' Length
Just had to replace my liner for the 2nd time in 3 months, because a small deer fell into it...and did some damage to the first replacement liner (after 20 years of service). The first replacement liner (same size and brand) had a tiny hole that I was able to pull high enough up so it didn't impact the system. This 2nd liner is even better. Thick, heavy, and sturdy. No leaks so far (2 months). In fact, hold water level better than I've ever seen. But this is heavy rubber and difficult for a single person (like me) to deal with. To make that easier, I unrolled the liner in my driveway, checked for holes (none found), and then folded it up (so it could be opened evenly on each side) and then rolled the folded liner up. My pond is long and narrow, and the folding makes the unfolding so much easier. ... show more
Reviewed in the United States on August 29, 2026 by Winenut
    • Well worth the money
Material Type: 10' Width Style: 10' Length
Excellent quality liner. So much better than the plastic disaster I purchased previously. Good thickness and weight, yet very flexible and relatively easy to work with considering it's weight. I used with a good underlayment for extra protection and feel confident it will work well in the long haul.
Reviewed in the United States on August 4, 2026 by CC
    • Pick this one!
Material Type: 20' Width Style: 20' Length
This liner is amazing. It is so thick but yet easy to manage installing. Well worth the cost. I highly recommend it. Not at all flimsy like the run of the mill liners.
Reviewed in the United States on August 31, 2026 by maria
    • Watch out for spiders
Material Type: 15' Width Style: 20' Length
Review Image by Michael Foos
When I opened the box there was a spider in the box. It did not run out of the box, but into the liner. In general, my wife and I don't eradicate spiders (I should have). Two days after installing the liner I noticed a bump on my back. It kind of looked like poison ivy (oozing), but the middle of the back is kind of a weird spot for poison ivy. A day later, fever and chills, plus muscle aches started. I went to the ER when I saw this black spot on my back (see attached picture). They said it was a spider bite. I don't know for a 100% that it was that spider, but checking pictures now it did look like a brown recluse. The timing seems to match from when I saw this spider. The initial charge from the ER $130, it will be a while before I see billing from the doctors and testing...we'll see what Medicare covers. I'm guessing it will be Thousands of dollars. A little pond project could turn into a big expense. The liner itself is of good quality. ... show more
Reviewed in the United States on June 15, 2026 by Michael Foos
    • Great product; No issues!
Material Type: 40' Width Style: 90' Length
Review Image by Sergiu
Review Image by Sergiu
1000 lbs of EPDM liner (1 piece, 90' x 40') arrived on a pallet just in time. Delivery coordination and communication was great and no issues there. I laid used carpet under the liner to protect it from possible roots etc. I wish I had a few more people to help. It was not an easy task for 6 of us to get this done. We had to work smarter as this is a really heavy liner but managed to get the job done in approx 1hr. Only a few things left to do like booting a couple pipes and then laying the larger rocks down on the shelf. The liner however is perfect, no rips or holes that I can see, very strong and also flexible. I'm not a pond pro so I've never worked with EPDM before but I'm impressed. Amazon had the best $ price for this particular size and free delivery. Could not find any local shop to beat Amazon, so thank you Amazon!! ... show more
Reviewed in the United States on October 3, 2024 by Sergiu
    • Thick, flexible, nice and heavy.
Material Type: 20' Width Style: 25' Length
Review Image by Michelle H.
Review Image by Michelle H.
Review Image by Michelle H.
Review Image by Michelle H.
Review Image by Michelle H.
It is very heavy, nice and pliable, and needs a few people to drag it into place. It is so much nicer and more flexible than the last liner we had. Very nice. Thick, heavy and so far no leaks.
Reviewed in the United States on July 1, 2026 by Michelle H.
    • Heavy duty but easy to work with
Material Type: 5' Width Style: 30' Length
Used as an impermeable surface to ensure rainwater drains away from foundation. Heavy duty enough that there’s no concern about placing it on and covering it with crushed stone. Still easy enough to fold up the wall under a termination bar and to cut with a pair of scissors.
Reviewed in the United States on August 3, 2026 by Coach Peter
    • Great for under-deck water protection, too
Material Type: 10' Width Style: 10' Length
I got this to use as water protection from my deck, that is, to keep it dry underneath. This stuff is as thick as a tire inner tube and it's real rubber. It does a great job. Saved hundreds over the name brand projects that's meant to do this job, and it's better stuff. You have to install at a certain way so make sure you check for YouTube videos about how to do that if you want to use it for this purpose. ... show more
Reviewed in the United States on November 2, 2025 by FastAl

Can't find a product?

Find it on Amazon first, then paste the link below.
Checking for best price...