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USA Pond Products' - 18x20 Black Pond Liner-18'W x 20'L (5.49m x 6.1m) in 20-mil Black PVC (0.50mm)-Fish/Plant Friendly for Koi Ponds, Streams & Water Gardens
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USA Pond Products' - 18x20 Black Pond Liner-18'W x 20'L (5.49m x 6.1m) in 20-mil Black PVC (0.50mm)-Fish/Plant Friendly for Koi Ponds, Streams & Water Gardens
Flexible Material Conforms to Shapes and Contours
USA Pond Products' - 18x20 Black Pond Liner-18'W x 20'L (5.49m x 6.1m) in 20-mil Black PVC (0.50mm)-Fish/Plant Friendly for Koi Ponds, Streams & Water Gardens
Item #: 12656156

USA Pond Products' - 18x20 Black Pond Liner-18'W x 20'L (5.49m x 6.1m) in 20-mil Black PVC (0.50mm)-Fish/Plant Friendly for Koi Ponds, Streams &

Item #: 12656156

XCD 765

Price Details

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*All items will import from US

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Order now and get it around Wednesday, August 05
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What Stands Out

Durable Material
Made from 20-mil PVC, this liner is designed to withstand UV exposure and environmental wear, ensuring a long-lasting solution for your pond needs and protecting koi and aquatic plants.
Fish-Friendly
Safe for fish and plants, this pond liner provides a secure habitat, promoting healthy aquatic life while preventing harmful chemicals from leaching into your water garden.
Versatile Size
Measuring 18'W x 20'L, this liner adapts to various pond shapes and sizes, making it perfect for koi ponds, streams, and garden water features, boosting design flexibility.

Product Details

Shop USA Pond Products' - 18x20 Black Pond Liner-18'W x 20'L (5.49m x 6.1m) in 20-mil Black PVC (0.50mm)-Fish/Plant Friendly for Koi Ponds, Streams & Water Gardens online at a best price in Saint Lucia. B0797CYZV4
  • Made in the U.S.A. 20-mil Black PVC pond liner
  • Flexible material conforms to shapes and contours
  • Fish and plant friendly, suitable for Koi ponds, streams, and water gardens
  • Recyclable and environmentally friendly
  • Weighs approximately 55 pounds for shipping
  • UV protection recommended for exposed surfaces
Package Dimensions24 x 12.5 x 7 inches (61 x 31.8 x 17.8 cm)
Item Weight49 pounds (22.23 kg)

Who Should Buy?

Suitable For
  • Koi Pond Enthusiasts

    Ideal for users looking to create or enhance koi ponds with a durable, fish-safe liner.

  • Water Garden Creators

    Perfect for individuals aiming to establish a water garden that promotes healthy aquatic plants and organisms.

  • DIY Pond Builders

    Great for DIY enthusiasts who want an easy-to-install, flexible liner for customized pond designs.

Not Suitable For
  • Large Ponds

    Not suitable for very large pond setups that may require bigger liners for efficiency.

Product Description

USA Pond Products' - 18x20 Black Pond Liner-18'W x 20'L (5.49m x 6.1m) in 20-mil Black PVC (0.50mm)-Fish/Plant Friendly for Koi Ponds, Streams & Water Gardens

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Customer Questions & Answers

  • Question: What features make the Saint Lucia Pond Products' 18x20 Black Pond Liner suitable for Koi fish?

    Answer: The Saint Lucia Pond Products' 18x20 Black Pond Liner is specifically designed with 20-mil thick PVC that is fish and plant friendly, ensuring a safe habitat for your Koi. The 0.50mm thickness adds durability against punctures and UV degradation, making it ideal for outdoor use. With its flexible, heavy-duty material, the liner can conform easily to the contours of your pond, preventing leaks and ensuring a long-lasting installation. By creating a secure environment, this liner minimizes the risk of harmful chemicals leaching into the water, thus promoting a healthy ecosystem for your fish.
  • Question: Can the 18x20 pond liner be used for other types of ponds?

    Answer: Yes, the 18x20 Black Pond Liner can be used effectively for various types of ponds, including water gardens, fountains, and wildlife habitats, apart from Koi ponds. Its flexible yet durable design allows it to adapt to different shapes and sizes of ponds, making it versatile for both aesthetic and practical applications. Additionally, the liner's black color helps to minimize algae growth by reducing sunlight penetration. Whether you are creating a serene water feature in your backyard or a natural habitat for wildlife, this liner will meet your needs.
  • Question: How do I install the Saint Lucia Pond Products' pond liner properly?

    Answer: Installing the Saint Lucia Pond Products' 18x20 Black Pond Liner requires careful preparation to ensure optimal results. First, dig your pond to the desired shape and depth, removing any sharp objects from the bottom. Next, lay down a layer of sand or underlayment to protect the liner from punctures. Then, carefully unfold and position the liner in the dug-out area, allowing for some overlap at the edges. You can then fill the pond with water to help settle the liner into place, making adjustments as necessary. Finally, secure the edges with stones or soil to complete the installation.
  • Question: Is the black pond liner UV resistant?

    Answer: Absolutely! The black pond liner by Saint Lucia Pond Products is constructed from UV-resistant PVC material, which protects the liner from degradation caused by sunlight. This feature enhances the liner's longevity, preventing it from cracking or becoming brittle over time. UV resistance is essential, especially for outdoor ponds exposed to direct sunlight throughout the day. With such durability, this pond liner maintains its integrity, ensuring a safe and healthy environment for your aquatic life and reducing the need for frequent replacements.
  • Question: What are the benefits of using a black pond liner compared to other colors?

    Answer: Choosing a black pond liner provides several advantages, especially for Koi ponds. The dark color helps to reduce glare and reflects a more natural environment, creating a more aesthetically pleasing view. Additionally, a black liner minimizes algae growth by blocking sunlight, which keeps your water cleaner and lessens the need for chemical treatments. This eco-friendly benefit is crucial for maintaining a healthy pond ecosystem. Furthermore, black liners also enhance the observer's view of the vibrant colors of the Koi, allowing for a stunning display.
  • Question: Can I cut the liner to fit my pond's specific dimensions?

    Answer: Yes, you can cut the Saint Lucia Pond Products' 18x20 Black Pond Liner to fit your pond's specific dimensions, but it's important to do so carefully. Ensure you have the correct measurements before making any cuts, and always allow for extra material to prevent potential leaks. After cutting, you can use compatible liner adhesive or patch kits to seal any seams if necessary. This customization allows you to create a tailored pond that fits your landscape perfectly while using the same high-quality materials.
  • Question: What maintenance is required for the pond liner after installation?

    Answer: Once installed, the Saint Lucia Pond Products' pond liner requires minimal maintenance, making it hassle-free for pond owners. Regular inspections are advisable to check for any signs of wear, punctures, or leaks. It is also beneficial to occasionally clean the edges of the pond to prevent debris buildup, which can promote algae growth. Additionally, managing the pond’s ecosystem, such as ensuring proper filtration and water quality, is essential. Maintaining your pond not only prolongs the life of the liner but also supports a healthier environment for your aquatic life.
  • Question: Does this pond liner leach harmful chemicals into the water?

    Answer: No, the Saint Lucia Pond Products' 18x20 Black Pond Liner is designed to be fish and plant friendly, meaning it does not leach harmful chemicals into the water. The 20-mil PVC construction is non-toxic and specifically made for use in aquatic environments, ensuring the safety of your fish and plants. By using a liner that is free of harmful substances, you can be assured that your Koi and other aquatic life will thrive without exposure to toxins, promoting a sustainable and healthy pond environment.
  • Question: Where can I buy Saint Lucia Pond Products' 18x20 Black Pond Liner in Saint Lucia?

    Answer: You can purchase the Saint Lucia Pond Products' 18x20 Black Pond Liner directly from Ubuy in Saint Lucia. Ubuy offers seamless shopping options for this high-quality pond liner, providing you with the convenience of online purchasing. You can browse product details, ensuring you make an informed decision before buying. Ubuy is known for its extensive selection and customer service, making it a reliable choice for pond supplies.
  • Question: What is the weight of the 18x20 pond liner?

    Answer: The weight of the Saint Lucia Pond Products' 18x20 Black Pond Liner can vary based on the thickness and material density, but it is designed to be manageable for installation purposes. The 20-mil thickness ensures durability while maintaining a reasonable weight for handling. This aspect is essential for making the installation process easier, as you will need to maneuver the liner into place. Its robust construction offers strength and stability without being overly cumbersome, allowing for a user-friendly application.

HAZKO Pond Liners & Seals Editorial Review

The 18' x 20' Pond Liner is a 20-mil black PVC liner suitable for koi ponds, streams, fountains, and water gardens. The liner is soft, pliable yet strong enough to be affordable and of good quality. Many customers had an easy time working with it during installation and found it to be substantial. However, one customer reported that 12 of their Koi fish died following the installation, which is speculated to have resulted from chemicals on the liner. The liner's thickness is around the same as that of heavyweight trash bin liner or the plastic material that an inflatable pool is made from.

Customer Reviews & Ratings

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Pros

  • Soft and pliable while also strong
  • Affordable yet good quality
  • Easy to work with during installation
  • Suitable for different types of water features
  • Durable and has excellent thickness

Cons

  • The liner may contain chemicals that could be harmful to fish and other water creatures

Platform Trust & Buyer Confidence

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4.3/5 9,000 + reviews
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MT
Mohd
Verified buyer

“The product received very good packaging & safe…Thank You”

16 June 2026 · via Trustpilot
SJ
Shawati
Verified buyer

“Accurate delivery timing given”

16 June 2026 · via Trustpilot
YB
Youcef
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“Not madly expensive like I thought, and much quicker than promised.”

15 June 2026 · via Trustpilot
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Leila
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“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”

6/7/2026 · via Trustpilot
KA
Kwame
Verified buyer

“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”

12 June 2026 · via Trustpilot
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Features & Benefits

  • Plant and Fish Friendly
  • Made in the U.S.A.
  • Highly Recyclable
  • 55 pounds estimated shipping weight

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