15x20 ft 45 Mil EPDM Pond Liner, Heavy Duty Rubber Pond Liner for Outdoor Ponds, Fish & Plant Safe Koi Pond Liner for Waterfall, Stream & Backyard Garden Ponds, UV Resistant

Select 45 Mil EPDM Pond Liner – Durable, Fish-Safe Solution for Outdoor Water GardensEnhance your outdoor landscape and create a thriving aquatic haven with our high-quality EPDM Pond Liner. Specially engineered for natural ponds, koi and fish habitats, waterfalls, and water gardens, this liner boasts a robust 45 mil thickness for exceptional durability and long-lasting performance.Fish & Plant Safe: Made from select food-safe EPDM, our pond liner is free of harmful chemicals and plasticizers, providing a safe, toxin-free environment for koi, fish, and aquatic plants.Superior Durability: The 45 mil thickness and puncture-resistant construction allow the liner to withstand sharp debris, roots, and the unpredictable elements of outdoor environments, ensuring years of reliable use.UV Resistant & Weatherproof: Built to endure intense sunlight and harsh weather, this liner resists UV degradation and remains flexible in all seasons, making it ideal for water features exposed to the elements.Flexible & Easy Installation: Lightweight yet strong, our liner easily bends around corners and contours to fit ponds of various shapes and sizes. Simple to trim and customize, it’s perfect for both beginners and experienced landscapers.Multi-Purpose Application: Not just for ponds – use this liner for pond underlayment, garden water features, irrigation systems, construction waterproofing, roof gardens, and more.Reliable Leak Protection: Forms a secure barrier between water and soil, preventing water loss and keeping out dirt, debris, and contaminants.Whether building a new pond or upgrading your current water feature, our 45 Mil EPDM liner delivers lasting performance, easy maintenance, and reliable for your garden, landscaping, and aquatic projects.

• FISH & PLANT SAFE EPDM POND LINER: Premium EPDM rubber creates a non-toxic, fish-safe waterproof barrier for koi pond, garden pond, and outdoor fish pond builds. Helps prevent seepage and water loss while supporting stable water conditions for aquatic plants and wild animals . Ideal pond liners for outdoor ponds where long-term durability and safety matter.
• 45 MIL HEAVY DUTY RUBBER POND LINER: Built as a 45 mil EPDM pond liner to handle real outdoor conditions. Strong puncture resistance against rocks, roots, and foot traffic around pond edges, plus UV resistance for sun exposure. EPDM stays flexible through heat and cold, resisting cracking and brittleness common with thin plastic liner sheets.
• FLEXIBLE, EASY TO SHAPE & CUT TO FIT: This flexible rubber pond liner conforms to curves, shelves, and irregular pond layouts, making DIY installs easier. Trim with scissors or a utility knife to fit streams, waterfalls, and backyard ponds. For best results, remove sharp debris, use underlayment on rough ground, and leave slight slack for settling.
• SMOOTH SURFACE FOR EASIER MAINTENANCE: EPDM’s low-porosity surface helps reduce buildup and simplifies routine cleaning. Rinse leaves and debris with a hose to keep your pond looking clear and natural with less scrubbing. A practical fish pond liner choice for koi keepers who want better water clarity, cleaner edges, and less maintenance over time.
• VERSATILE FOR WATER FEATURES: Use as a koi pond liner, fish pond liner, or pond liner 45 mil for waterfalls, streams, and decorative garden ponds; also suitable for many above ground pond and water retention projects. The cut-to-fit sheet supports custom shapes and sizes, helping you build a natural-looking pond edge with rocks, gravel, or coping.