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Simply Ponds 2100 GPH Water Garden Koi Pond Kit 15 x 20 Ft EPDM Liner

  • Based on 110 reviews
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Availability: In Stock.
Fulfilled by Amazing Pond Supplies

Arrives Tuesday, Nov 3
Order within 20 hours and 37 minutes
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Material Type: 45-Mil EPDM Rubber


Style: 15' x 20' Liner Size


Features

  • Build Your Dream Pond - 15' x 20' Pond Kit can build a 11' x 16' 2100-gallon water garden or fish pond at a 1.5' depth. Finished pond length, width, and depth can be tailored to your specific requirements.
  • Everything You Need - The Simply Ponds 2100 Water garden Kit includes: 16" Waterfall Filter, 7" Serenity Skimmer, Manta 2,100 GPH Submersible Pump, 15' x 20' 45-Mil EPDM LifeGuard Pond Liner, 300 sqft. of UnderGuard Underlayment Nonwoven Geotextile, 1-Watt Mini Bronze Spot Light, 1.5" x 25' Kink Free Tubing, Waterfall Foam to seal gaps between rocks - 16oz. can
  • Built to Last - LifeGuard Pond Liner is durable. Underlayment adds protection from rocks and punctures. Manta pump has a highly energy efficient variable speed motor. Skimmer has faux rock lid, mesh leaf basket, and filter mat for cleaning floating debris. Waterfall has filter mat for biological filtration. Pond lighting has energy efficient LED technology. Waterfall foam is used to seal gaps in rocks in the stream and waterfall.
  • A Kit You Can Trust - Warranties: EPDM LifeGuard Pond Liner - Limited Lifetime; 16" Waterfall Filter and Skimmer - 5 years; 2,100 GPH Pump - 2 years; Lighting - 2 years
  • All installation hardware and plumbing fixtures are included. May ship in more than one box.

Description

From building new ponds to maintaining existing ones, HALF OFF PONDS has the kits, pumps, filters, and aerators you need. HALF OFF PONDS is a U.S.-based, family-owned brand offering high-quality pond kits, pumps, liners, and filtration. From koi ponds to waterfalls, we make it easy to build and maintain beautiful, low-maintenance water features. Whether you're starting fresh or upgrading your backyard, our trusted products and expert support make it easy to turn your backyard vision into reality. All-in-one kits with liner, pump, and plumbing, build your own koi pond or waterfall with ease and confidence. Add movement, beauty, and aeration to your pond with our energy-efficient floating fountains, built to impress. Boost koi color, growth, and health year-round with floating pellets in Show & Grow, Grow Pro, and All Seasons formulas. Powerful multi-stage filtration with UV for clear, healthy water, engineered for performance and reliability. Enjoy the beauty of cascading water without the upkeep. Easy-to-install kits blend into any landscape naturally. Tear-resistant, flexible liner built for long-lasting performance in any pond environment. Easy to shape and install. Boost oxygen circulation and clarity with energy-efficient, bottom-diffused aeration built for lasting performance. We focus on delivering high-performance pond equipment at competitive prices. From aerators to full pond kits, each product is carefully selected to offer reliability, efficiency, and ease of installation for pond owners of all levels. Yes! Our kits include everything you need with clear instructions, so anyone can build a pond or waterfall. From small koi ponds to large fountains, we offer solutions for every scale—pumps, filters, aerators, and more. From filtration and circulation to lighting and pond care, every component is carefully selected to help you create a beautiful, low-maintenance pond with crystal-clear water and reliable performance. HOP-SW-36 PAK- 20 Aeration Kit Submersible Rock Light Variable Speed Remote Beneficial Bacteria 16 OZ Foam What size pond liner do I need? Liner Length = Pond Length + (2 × Depth) + 2 feet Liner Width = Pond Width + (2 × Depth) + 2 feet That extra 2 feet gives you room for overlap around the edges. How deep should I make my water feature? For fish ponds, a depth of at least 18", or deeper is recommended. Healthy fish LOVE to move up and down, as well as side to side! For water gardens, the water feature should have a depth of at least 12", or deeper. What is so special about our Pond Kits? Our kits are Built with high-quality components, proper sizing, and everything you need in one box. No cheap parts, no cut corners. From powerful pumps to UV protection and tough liners, our kits deliver professional results at a price DIYers love. Why choose Half Off Ponds? When you choose Half Off Ponds, you're choosing quality, savings, and service you can rely on. Join the growing community of satisfied customers who trust us to keep their ponds flowing, clean, and beautiful.

Product Dimensions: 32 x 24 x 23 inches


Item Weight: 144 pounds


Manufacturer: Anjon Manufacturing


Item model number: XSH


Frequently asked questions

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

This item is non-returnable:

Non-returnable. Transportation of this item is subject to hazardous materials regulation

View our full returns policy here.

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Top Amazon Reviews


  • Love it
Material Type: 45-Mil EPDM Rubber Style: 15' x 20' Liner Size
Has some challenges sealing the skimmer but it’s up and running. Treatment in and once clear, fish. Has no issues with the product or parts so far. Super happy!!
Reviewed in the United States on June 14, 2026 by Camille

  • Perfect for a beginner
Material Type: 45-Mil EPDM Rubber Style: 15' x 15' Liner Size
This kit had everything I needed for my small pond. I had to buy extra waterfall foam, but everything else in the kit was perfect.
Reviewed in the United States on February 22, 2025 by Mizzou

  • Great pond kit and costumer service
Material Type: 45-Mil EPDM Rubber Style: 15' x 15' Liner Size
So far I’m really happy with my purchase. The liner and underliner is very thick. I got a 15’X20’ liner. So there’s a seam on it. The pump is very powerful. I had to get extra foam sealer , because it got clogged. There were some missing screws to attach the liner on the equipment. So check everything before installation. BTW,I got smaller liner, but then I decided to exchange for a larger one. I was able to exchange just the liner instead of the whole kit( super heavy). The Half off Ponds costumer services was great. They helped me with exchange it right away! ... show more
Reviewed in the United States on September 22, 2020 by fthngd

  • My 2 cents regarding pond kit.
Material Type: 45-Mil EPDM Rubber Style: 15' x 20' Liner Size
My family is enjoying the new pond. Overall, the quality of the products in this pond kit are very good. the liner is thick and durable, the skimmer is working wonderfully and the waterfall works well; the pond is very clean. I do have a few things to bring up that could possibly improve things for future customers. First, the step-by-step instruction booklet includes pictures so tiny it was extremly difficult to see & follow. I called the company and they were kind enough to email me some other similar instructions which were helpful. Also, the parts in the kit did not match what was in the booklet so I had to figure it out myself. I felt one of the most critical steps is hooking up the skimmer to the couplings and hoses, and this step is not covered in enough detail. I watched videos on youtube (of other pond kits) to get a better understanding. For the cost of the kit, they should include a top cover for the waterfall, teflon, and primer & glue (for couplings) which are not included. Would I buy it again? I believe so because the postives outweigh the negatives by far. ... show more
Reviewed in the United States on February 11, 2021 by Aaron

  • Quality Pond Kit
Material Type: 45-Mil EPDM Rubber Style: 10' x 15' Liner Size
Our pond kit arrived quickly and we were thrilled with the quality. It was easy to use and instructions were clear. Within a few short days after the build, we were able to achieve a perfect PH balance for our Koi. We've been enjoying our pond for a few weeks now. We're glad we quit thinking about it and pulled the trigger, it's such a beautiful addition to our yard. ... show more
Reviewed in the United States on June 16, 2023 by Malissia Alexander

  • Pumps are junk and did not get the skimmer with the rock top!!!
Material Type: 45-Mil EPDM Rubber Style: 15' x 20' Liner Size
The work horse pump they said was a beast didn't last a week. Tried to get them to replace it and they wanted me to use my warranty up on it. And as the headline says I didn't get the skimmer with the rock top as shown. Dont buy from half off ponds, big waste of money with no customer service. I've tried to call back several times and left messages with no return call. Thanks for nothing! ... show more
Reviewed in the United States on August 6, 2020 by Harmon

  • works well
Material Type: 45-Mil EPDM Rubber Style: 10' x 15' Liner Size
It all came together well. The directions were a little confusing and they did not include the right connector to the waterfall, but we made it work. So far so good. Fish seem very happy.
Reviewed in the United States on June 8, 2022 by Gina Bergen

  • I would recommend adding these items
Material Type: 45-Mil EPDM Rubber Style: 15' x 20' Liner Size
Though it took me most of the summer to complete this pond project, this product provided everything I needed...except I did buy more waterfall foam and a real waterfall foam gun. I would recommend adding these items. Now that I know what I need and how to make a pond, I would have upgraded my waterfall and skimmer...though the one I got is working great...so maybe bigger isn't better. ... show more
Reviewed in the United States on October 16, 2016 by DJ

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