Filter-free submersible pond pump comes with 2 interchangeable fountain nozzles. (water bell and double daisy) diverter, and riser and is ideal for creating a DIY backyard pond. It i also ideal for adding an additional fountain or waterfall to your existing pond.. Liner Material: PVC. Pond Capacity (gallons): 340. Returnable: 90-Day. Liner Thickness (mil): 20. Pond Depth (in.): 18. Pond Length (in.): 16. Pond Width (in.): 16. Product Depth (in.): 6.69 in. Product Height (in.): 7.09 in. Product Width (in.): 6.69 in