The Reef Octopus BC-20T Bio Churn External Reactor is designed specifically for commercial use and can handle aquariums up to 5,000 US gallons. Its innovative 'Power Churn' design fluidizes large amounts of biopellet media without excessive water flow, using a unique cyclone motion created by the patent-pending churn plate. This reactor includes an efficient Water Blaster 10000 recirculation pump and independent flow valves to control media suspension precisely. With specifications that include a media capacity of approximately 4 gallons (depending on media type) and a powerful pump capable of up to 2600 gallons per hour, this reactor is ideal for large-scale filtration needs in commercial settings.