Aquatop’s MaxFlow Circulation Pumps are powerful, highly efficient water-circulating units that move and draw water in a unique way. The prop-style impeller and 360-degree uniform water draw create a wider distribution of flow when compared to traditional powerheads. The design allows for flexible placement and offers a wide range of motion. The pumps also include a secure suction cup mounting system, and each model runs quietly and efficiently. They can be used in freshwater or saltwater aquariums.