This large-capacity, multistage external canister filter enables you to customize the performance to precisely manage your aquarium's needs. The self-priming design is convenient to use, while the clog-free strainer helps prevent build-up. This Fluval FX6 Canister Filter works quietly and efficiently to help maintain your aquarium. It attaches easily with a multifunctional aquarium rim connector to keep hosing securely in place as its powerful, integrated motor processes and recirculates up to 607 gal. every hour. This energy-efficient pump starts automatically when plugged in for convenience, and pauses every 24 hours to allow trapped air to escape to help maintain peak filtration performance. The filter features lift-out, stackable media baskets, which allow for customizable media configurations to suit the specific needs of your aquarium. Quiet, energy-efficient pump works to help maintain your aquatic environment Powerful integrated motor processes and recirculates up to 607 gal. of water every hour Self-priming, instant-start system is convenient and doesn't require manual siphoning Click-fit AquaStop Valves regulate water flow and rotate at 55-degree angles to allow for fast setup and easy maintenance Multifunctional aquarium rim connector helps keep hosing securely in place Clog-free strainer helps prevent build-up of solids Purge valve allows for easy cleaning Multidirectional twin output nozzles help create specific water flows Smart Pump Technology uses an electronic circuit board to continually monitor performance Filter pauses every 24 hours to allow trapped air to escape and help ensure optimal filtration performance Lift-out media baskets allow for custom media configurations to better suit your needs Includes pre-assembled accessories and instructional assembly DVD For use in aquariums with up to a 400-gal. (1,500 L) capacity Size: Large.