Get the essentials for pond maintenance with The Tetra Pond Liner, Waterfall Pump and Filter Solution Collection. This group contains 10-ft L x 7-ft W Black PVC Pond Liner (1500- Gallons), Biological Waterfall 1,000-Gallon Filter, GreenFree Ultra Violet 1800 GPH Water Clarifier, 330-GPH Submersible Fountain Pump, and De-Icer Grey Pond De-icer. Use these items for a newly installed pond or for one that is pre-existing.