1450 GPH to 3200 GPH.For Saltwater & Freshwater Aquariums.For Submersed or External Use.The Sicce Syncra Advanced Pumps feature high-quality parts and low energy use, and they're quieter than other Sicce Pumps. They can be used as return pumps, for closed-loop systems, reactors, or any other purpose. The volutes can be rotated 360 degrees for the ultimate versatility. The new oversized rubber feet help protect against vibrations on all sides of the pump and not just the bottom.