Pond Liner 4 m x 5 m Heavy Duty 450 GSM PVC Garden Pond Liner Sheet - Fish-Safe Waterproof Pond Membrane for Koi Wildlife Water Features, Streams, Waterfalls - Flexible Tear and Puncture Resistant

• Leak-Free Waterproof Barrier - create a secure pond lining for garden ponds, koi ponds and water features. 450gsm PVC helps keep water contained once installed correctly, supporting smooth curves and neat edges.
• Heavy-Duty 450 GSM PVC - tough liner sheet built to resist abrasion, tearing and punctures during installation. Ideal for stony ground and demanding landscaping jobs when used with a proper underlay.
• Flexible for Any Pond Shape - supple material bends around curves, shelves and contours, making DIY digging simpler and helping you achieve a clean finish on formal ponds, streams and waterfalls.
• Fish-Safe for Wildlife Ponds - suitable for fish and aquatic plants, supporting ponds, water gardens and habitats. Great for patios, allotments and back gardens where water quality matters.
• Folded Pack Cut Size - supplied neatly folded for easy handling and storage. Sold as cut size with ±5% tolerance. Underlay recommended for best results and long life (underlay not included).

Build a pond you can trust with our Premium 450gsm PVC Garden Pond Liner, designed for durable, long-term outdoor use. The heavy-duty PVC sheet is flexible enough to shape around curves, shelves and contours, while helping you create a reliable waterproof barrier for garden ponds, koi ponds, wildlife ponds and decorative water features. Ideal for DIY projects and professional landscaping, this liner is supplied as a neatly folded pack for easier carrying, handling and storage. For best results and liner protection, use a proper underlay (not included), especially on rough or stony ground. Heavy Duty 450gsm PVC - strong, durable outdoor performance Waterproof Barrier - helps create a secure, leak-free pond lining Flexible and Easy To Shape - ideal for curves, shelves and custom pond designs Tear and Puncture Resistant - built to withstand demanding installations Fish Safe - suitable for koi ponds, wildlife ponds and water gardens Folded Pack Packaging - supplied neatly folded (not rolled) Suitable for: Garden ponds and fish ponds, water gardens, streams, waterfalls and aquatic landscaping features. Important: Underlay is required for best results (not included). Available in a range of sizes. Sizes are sold as cut size (industry standard). Actual size tolerance: ±5%.