Oxyful 525 GPH Aquarium Pond 5-Stage External Cleaner Canister Filter with 9-watt UV Sterilizer 2000L/hr 525 GPH (2000L/hr) Flow Rate: 5 stage canister filter good for fish tanks up to 150 gallons. Built in 9 Watt UV sterilizer to help control algae spores/bacteria and maintain clean clear water. 4 flexible media trays capable of handling your choice of filtration media. Quiet operation unit. Pump Power: 55W