10 Best Pond Liners 2025 in the United States

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.

The LifeGuard Pond Liner is made from 45-mil thick EPDM rubber, a material known for its durability and flexibility, making it a strong choice for a variety of water features like ponds, waterfalls, and koi habitats. Its thickness helps resist punctures and wear, which is important for long-lasting protection. Unlike some liners, this one doesn’t use plasticizers that can become brittle over time, so it’s less likely to crack or split in sunlight. EPDM liners generally perform well against sun damage, helping the liner last outdoors. The included UnderGuard Underlayment adds extra protection from sharp objects below the liner, which improves durability.

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.