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10 Best Pond Liners 2025 in the United States

#1

Winner

10.0 score

LifeGuard Pond Liner 20 ft. x 25 ft. 45 Mil EPDM Rubber and Underlayment Combo - CLGUG20X25

LifeGuard Pond Liner 20 ft. x 25 ft. 45 Mil EPDM Rubber and Underlayment Combo - CLGUG20X25

LifeGuard Pond Liner

10.0 score

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The LifeGuard Pond Liner is made from 45-mil thick EPDM rubber, a material known for its durability and flexibility, making it a solid choice for various water features like ponds, waterfalls, and koi habitats. Being puncture resistant and free from plasticizers, it promises long-lasting performance without cracking or brittleness, which is important for maintaining a secure water barrier. The inclusion of an UnderGuard underlayment adds extra protection against sharp objects below the liner, reducing the risk of damage.

Rating
10.0
Chosen by1,445
Material
Thickness
Fish and Plant Safety

Most important from
257 reviews

Material
Its robust, durable rubber construction provides a high-quality, long-lasting solution for pond owners.
Thickness
The liner's thickness and heavy-duty material ensure it stands up to the test of time without rips or leaks.
Fish and Plant Safety
Perfect for koi ponds, it supports aquatic life while adding value and enjoyment to the home.
#2
9.1 score

HALF OFF PONDS - 50 ft. x 50 ft. 20-Mil LLDPE Pond Liner for Ponds, Lakes and Retention Basins

HALF OFF PONDS - 50 ft. x 50 ft. 20-Mil LLDPE Pond Liner for Ponds, Lakes and Retention Basins

HALF OFF PONDS

9.1 score

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The HALF OFF PONDS 50 ft. x 50 ft. 20-Mil LLDPE Pond Liner is a solid choice for pond, lake, or retention basin projects, especially if you need a large, flexible liner that can handle irregular surfaces. Made from LLDPE, it offers good durability with high resistance to punctures and tears, making it reliable for long-term use. Its 20-mil thickness strikes a balance between strength and flexibility, which helps it conform well to gentle curves and smooth transitions but might struggle with very sharp corners or tight bends.

Rating
9.1
Material
Thickness

Most important from
25 reviews

Material
The liner's toughness makes it suitable even as a pool liner, showcasing its durability.
Thickness
Despite its strength, the liner can develop holes quickly, indicating sensitivity to punctures during installation.
#3
8.8 score

Lifeguard 15 ft. x 20 ft. EPDM Pond Liner – 60-Mil Rubber Liner for Outdoor Ponds, Waterfalls, Aquaponics, Retention Basins – Durable & Fish Safe

7%OFF

Lifeguard 15 ft. x 20 ft. EPDM Pond Liner – 60-Mil Rubber Liner for Outdoor Ponds, Waterfalls, Aquaponics, Retention Basins – Durable & Fish Safe

LifeGuard Pond Liner

8.8 score

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The Lifeguard 15 ft. x 20 ft. EPDM pond liner is a strong choice for anyone building or upgrading an outdoor pond, waterfall, or water garden. Made from 60-mil thick EPDM rubber, this liner offers professional-grade durability that can handle heavy rocks and wildlife activity without tearing. It’s designed to be very flexible and lays flat easily, making installation smoother even if your pond shape is complex. A big plus is that it doesn’t contain plasticizers, which commonly cause liners to crack over time, so you’re likely to get many years of use without worry. It also comes with a 25-year warranty, showing the manufacturer’s confidence in its lifespan.

Rating
8.8
Material
Thickness
Size and Shape

Most important from
58 reviews

Material
Its heavy-duty construction handles tough conditions while remaining easy to work with during installation.
Thickness
The liner’s thickness and durability give confidence it will last a lifetime without needing replacement.
Size and Shape
The liner perfectly balances robustness with flexibility, making it ideal for a variety of pond shapes and sizes.

Top 10 Best Pond Liners 2025 in the United States

Sponsored

Slide 1

Garvee

Garvee 20x25 ft Pond Liner, 20 Mil Thickness, Pliable & Durable LLDEP Material, Easy Cutting & UV Resistant, for Fish or Koi, Features, Waterfall Base, Fountains and Water Gardens

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#1

Winner

10.0  score
Slide 1Slide 2Slide 3Slide 4Slide 5

LifeGuard Pond Liner

LifeGuard Pond Liner 20 ft. x 25 ft. 45 Mil EPDM Rubber and Underlayment Combo - CLGUG20X25

Material: EPDM rubber
Thickness: 45-mil
Size and Shape: 20 ft by 25 ft
Fish and Plant Safety: certified fish and wildlife safe

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Chosen by 1445 this week

Sponsored

Slide 1

Garvee

Garvee 20x25 ft Pond Liner, 20 Mil Thickness, Pliable & Durable LLDEP Material, Easy Cutting & UV Resistant, for Fish or Koi, Features, Waterfall Base, Fountains and Water Gardens

Check price

#2
9.1  score
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HALF OFF PONDS

HALF OFF PONDS - 50 ft. x 50 ft. 20-Mil LLDPE Pond Liner for Ponds, Lakes and Retention Basins

Material: LLDPE
Thickness: 20-mil
UV Resistance: UV resistant
Size and Shape: 50 ft x 50 ft, flexible
Fish and Plant Safety: safe for fish and plants

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#3
8.8  score
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LifeGuard Pond Liner

Lifeguard 15 ft. x 20 ft. EPDM Pond Liner – 60-Mil Rubber Liner for Outdoor Ponds, Waterfalls, Aquaponics, Retention Basins – Durable & Fish Safe

Material: EPDM rubber
Thickness: 60-mil
Size and Shape: 15 ft x 20 ft
Fish and Plant Safety: certified fish and wildlife safe

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7% OFF
#4
8.8  score
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LifeGuard Pond Liner

LifeGuard Pond Liner 15 ft. x 20 ft. 45 Mil EPDM Rubber and Underlayment Combo - CLGUG15X20

Material: EPDM rubber
Thickness: 45-mil
UV Resistance: performs well against sun damage
Size and Shape: 15 by 20 feet
Fish and Plant Safety: certified safe for fish and plants

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#5
8.2  score
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VEVOR

VEVOR 20 x 25 ft Pond Liner, 45 Mil Thickness, Pliable & Durable EPDM Material, Easy Cutting Underlayment for Fish or Koi,Waterfall, Fountains, Water Gardens, Black

Material: EPDM
Thickness: 45 mil
UV Resistance: resists cracking under sunlight
Size and Shape: 20 x 25 ft, pliable shape
Fish and Plant Safety: safe for fish and plants

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#6
7.3  score
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LifeGuard Pond Liner

Lifeguard 15 ft. x 20 ft. EPDM Pond Liner – 45-Mil Rubber Liner for Outdoor Ponds, Waterfalls, Aquaponics, Retention Basins – Durable & Fish Safe

Material: EPDM rubber
Thickness: 45-mil
UV Resistance: UV resistant
Size and Shape: 15 ft x 20 ft
Fish and Plant Safety: fish and wildlife safety certified

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#7
7.3  score
Slide 1

Firestone

Firestone PondGard 45 Mil 20 x 25-Feet EPDM Pond Liner

Material: EPDM
Thickness: 45 mils (1.14 mm)
UV Resistance: Yes
Size and Shape: 20 x 25 feet
Fish and Plant Safety: Yes

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#8
7.0  score
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Firestone

Firestone 45 mil EPDM Pond Liner 15' x 25'

Material: EPDM
Thickness: 45 mil
UV Resistance: Yes
Size and Shape: 15' x 25'
Fish and Plant Safety: Yes

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#9
7.0  score
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LifeGuard Pond Liner

Lifeguard 15 ft. x 15 ft. EPDM Pond Liner – 60-Mil Rubber Liner for Outdoor Ponds, Waterfalls, Aquaponics, Retention Basins – Durable & Fish Safe

Material: EPDM rubber
Thickness: 60-mil
UV Resistance: excellent
Size and Shape: 15 ft x 15 ft
Fish and Plant Safety: certified fish and wildlife safe

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#10
7.0  score
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yeezoo

yeezoo 40X50FT Reinforced Large PE Pond Liner, KOI Pond Liners for Outdoor Ponds, Enhanced 5-Layer Structure Pond Liner for Fish, Duck, Garden Raised Bed and Waterscape Pond(0.82oz/sq ft Thickness)

Material: reinforced HDPE with coatings
Thickness: 0.03 inches
UV Resistance: yes
Size and Shape: 40x50FT, fits various shapes
Fish and Plant Safety: safe

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Buying Guide for the Best Pond Liners

Choosing the right pond liner is crucial for creating a durable and leak-proof pond. The liner is the foundation of your pond, and selecting the right one will ensure that your pond holds water effectively and lasts for many years. When picking a pond liner, consider factors such as the size and shape of your pond, the type of material, thickness, and UV resistance. Understanding these key specifications will help you make an informed decision that best suits your needs.
MaterialThe material of the pond liner is important because it determines the liner's durability, flexibility, and resistance to punctures. Common materials include PVC, EPDM rubber, and HDPE. PVC liners are affordable and flexible but may not be as durable as other options. EPDM rubber liners are highly flexible, durable, and resistant to UV rays, making them a popular choice for many pond owners. HDPE liners are very durable and resistant to chemicals but can be less flexible. Choose a material based on the specific needs of your pond, such as the shape and the type of plants and fish you plan to have.
ThicknessThe thickness of the pond liner affects its durability and resistance to punctures. Thicker liners are generally more durable and less likely to be damaged by rocks, roots, or other sharp objects. Pond liners typically range from 20 mil to 60 mil in thickness. For small decorative ponds, a 20-30 mil liner may be sufficient. For larger ponds or those with more demanding conditions, such as heavy plant or fish loads, a 45-60 mil liner is recommended. Consider the environment and potential hazards in your pond area when choosing the thickness.
UV ResistanceUV resistance is important because it determines how well the pond liner can withstand exposure to sunlight. UV rays can degrade the material over time, leading to cracks and leaks. Liners with high UV resistance will last longer and require less maintenance. EPDM rubber liners are known for their excellent UV resistance, while PVC liners may degrade more quickly if exposed to direct sunlight. If your pond will be in a sunny location, prioritize a liner with good UV resistance to ensure longevity.
Size and ShapeThe size and shape of your pond liner should match the dimensions of your pond. It's important to measure your pond accurately, including the depth, to ensure you purchase a liner that is large enough to cover the entire area with some overlap. Liners are available in various sizes, and some materials can be seamed together to create custom shapes. When planning your pond, consider the liner's flexibility and how easily it can conform to the contours of your pond. A flexible liner, like EPDM rubber, is easier to work with for irregular shapes.
Fish and Plant SafetyIf you plan to have fish and plants in your pond, it's important to choose a liner that is safe for aquatic life. Some liners may contain chemicals that can be harmful to fish and plants. EPDM rubber liners are generally considered safe for fish and plants, while some PVC liners may require additional treatment to be safe. Check the manufacturer's specifications to ensure the liner is non-toxic and suitable for your pond's ecosystem. Prioritizing fish and plant safety will help create a healthy and thriving pond environment.

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