Make your large pond dreams a reality with the TotalPond 13 ft. x 20 ft. PVC Pond Liner. Suitable for holding water in waterproofing projects up to 1,600 gallons, this multi-purpose liner is perfect for any project requiring a non-porous material capable of holding water. This includes ponds, waterfalls, disappearing or hidden water features, drainage systems, water conservancy construction, garden systems, waterproofing planters, and more. The flexible, PVC material is 33% lighter than standard EPDM liner, making it easier to create custom-shaped water features. Its black color blends into the pond environment to create a more natural look for your project, plus its non-toxic construction makes it safe for fish, plants, and wildlife. The UV-resistant design prevents the PVC material from fading, while the textured surface also provides just the right foundation for an environmentally balanced habitat. Made to last, this 14.5 mil (0.37 millimeters) thick liner is reinforced with a mesh weave for added strength and durability and is backed by a 20-year limited warranty.