20 Mil Pond Liner 15x20 ft, Heavy-Duty LLDPE Fish Pond Liner for Water Features, Koi Ponds & Backyard Landscaping

Create a safe, leak-proof habitat for fish and aquatic plants with the 20 Mil LLDPE Pond Liner. Designed for durability and flexibility, this 15x20 ft fish pond liner resists punctures, UV damage, and extreme weather, ensuring long-lasting performance for water gardens, koi ponds, and backyard waterfalls.

Ultra-Durable 20 Mil Thickness:

Unlike thinner liners that tear easily, this heavy-duty pond liner features a 20 Mil thickness, providing superior:

• Puncture & tear resistance – Protects against roots, rocks, and sharp objects.

• Waterproof barrier – Prevents leaks and maintains consistent water levels.

• UV & weather resistance – Withstands sun exposure, freezing temps, and heavy rain.

Eco-Friendly LLDPE Material:

Made from flexible, non-toxic LLDPE, this pond liner for fish ponds is:

• Safe for fish & plants – Blocks harmful chemicals from leaching into water.

• Sunlight & aging-resistant – Lasts up to 50 years without degradation.

• Easy to shape & install – Softens in sunlight for seamless fitting around curves and irregular surfaces.

Versatile for Any Water Feature:

Ideal for both home and agricultural use, this waterfall liner is perfect for:

• Koi ponds & fish tanks

• Backyard waterfalls & streams

• Artificial lakes, golf courses & aquaculture farms

• Rooftop gardens & sloping landscapes

Easy Installation & Maintenance:

For best results, lay the liner under sunlight for 10-15 minutes before installation to enhance flexibility. Trim to fit any shape—no special tools required!

Why Choose This Pond Liner?

• 20 Mil thickness – Maximum durability
• LLDPE material – Eco-friendly & long-lasting
• 15x20 ft size – Ideal for small to medium ponds
• 50-year lifespan – Unmatched longevity
  
  

Upgrade your water feature with the best-selling LLDPE pond liner—trusted by landscapers, pond builders, and DIY enthusiasts alike!