Build a waterfall, easy as 1, 2, 3 using this pump with a liner of your choice. Don't forget to pick up 1-1/2-in or 2-in ID Corrugated Tubing (model 54032) to connect the pump to beginning of your waterfall and add-on Pond and Landscape Lights (model 52291) to create a beautifully illuminated water display. This item was previously listed as model number WPR3600.