Aquascape Waterfall Spillway for Pondless Waterfall, Pond, and Stream Features | 77000 Creates smooth, consistent, leak-free water flow for waterfalls and streams Ideal solution for starting waterfalls on Pondless Waterfall systems Durable design makes it easy to disguise; place soil, rocks, or logs directly on top of the unit Wide 22-inch spillway handles flow rates up to 7,500 gallons per hour Comes with 2-inch PVC slip fitting, 1.5-inch barbed hose fitting, and pre-installed bulk head; limited lifetime warranty