Aquarium Internal Filter 3-in-1 Multi-function Pump 50 Gallon Fish Tank 210 GPH Max Flow Rate: 210 GPH (800 L/H), Fits tank size up to 50 gallon Adjustable flow rate DIMENSION: 2.36" x 2.00" x 6.38" Voltage: 110V/60HZ, Pump Power: 7 Watt, H-Max: 4.5 feet Recommended tank size for water circulation and aeration: up to 50 gallon; recommended tank size for filtration:up to 35 gallon