MacCourt Black High Density Polyethylene Pond Liner (260- Gallons) in the Pond Liners department at Lowes.com
Amazon.com: 7.87 Mil Preformed Pond Liner, Leak Proof Pond Lining, Aging Resistant Pond Skins for Fish, Anti-Tear Easy to Install Flexible Liners, For Fish Ponds, Water Gardens, Water Fountains ( Size :