Fish Pond Liner 4.7 Mil HDPE – Koi Pond, Waterfall & Garden Fountain

Fish Pond Liner 4.7 Mil HDPE – Waterproof Koi Pond, Waterfall & Garden Fountain Liner

Create a safe, durable, and leak-free water feature with this 4.7 Mil heavy-duty HDPE fish pond liner. Thicker than standard liners, it delivers superior puncture resistance and long-term waterproofing — making it the ideal choice for koi ponds, garden fountains, backyard waterfalls, and outdoor water gardens.

Key Features

• 4.7 Mil Thickness: Thicker gauge HDPE provides enhanced puncture resistance and durability compared to standard pond liners
• Fish-Safe HDPE Material: Plasticizer-free, non-toxic construction creates a safe habitat for koi, goldfish, and all aquatic life
• Fully Waterproof & Leak-Resistant: Reliable water retention keeps your pond full and your soil dry
• UV & Weather Resistant: Engineered to withstand UV exposure, extreme temperatures, and seasonal weather changes
• Flexible & Easy to Cut: Pliable black liner conforms easily to any pond shape — simple to trim and install without special tools
• Multi-Purpose: Suitable for koi ponds, fish habitats, garden fountains, waterfalls, raised planters, and cisterns
• Two Sizes Available: 10×10FT and 13×33FT to suit different pond dimensions

Specifications

Use Scenarios

• Koi & Fish Ponds: Build a safe, non-toxic pond environment for koi, goldfish, and other aquatic species
• Garden Water Features: Line decorative garden fountains and streams with a reliable waterproof barrier
• Backyard Waterfalls: Create natural-looking waterfall channels with long-lasting leak protection
• Raised Planter Boxes: Use as a moisture barrier in raised garden beds to retain water and protect structures
• Cisterns & Rainwater Collection: Suitable for water storage and rainwater harvesting applications

Installation Tip: Place a layer of old carpet or sand beneath the liner to protect against sharp stones and extend the liner’s lifespan.