Keep your waterfall flowing and looking good with the Tetra Pond Waterfall Pump. This pump powers large waterfalls with up to 3,600 gallons per hour. It is also energy efficient and connects to 1 1/4, 1 1/2 and 1 3/4-inch tubing. Tetra Pond Waterfall Pump also comes with ID tubing and a 1 1/2 PVC pipe to ensure your waterfall continues to run smoothly.