At Marineland, innovation powers everything we do. From industry firsts to industry standards, Marineland products are designed with both performance and style in mind. We push precision and power beyond the expected and listen to our loyal customers to make our products even better. We do this because at the heart of our innovative spirit is a desire to help hobbyists everywhere do more, create more and, most of all, enjoy more. Make it Marineland. Emperor Power Filter Systems are advanced aquarium technology at its finest. With a revolutionary design, the Emperor's flow and filtration efficiencies are unmatched by other filters in their class. Featuring as much as twice the filter cartridge capacity, additional chemical filtration capability, and extra-large, spray bar-driven BIO-Wheel wet/dry biological filtration, Emperor Filter systems offer aquarists a filtration system that can stand up to any aquarium they can dream of. The BIO-Wheel Emperor Power Filter filters 400 gallons per hour.