The Aquatop MaxFlow X-Cross MFX-40 is a high-performance wavemaker pump designed for large-scale saltwater aquariums. This powerful device delivers up to 4,000 gallons per hour (GPH) of customizable flow, allowing advanced hobbyists and professional reef keepers to simulate natural ocean currents and surges. With five unique wave modes and an intuitive LED controller that adjusts speed and duration, the MFX-40 ensures corals thrive in optimal water conditions. Built for durability and ease of use, it securely mounts on glass up to 5/8 inches thick using a magnetic system, providing stability without tools or hassle.