CNZ HW-402B filtration system is ideal for fresh and saltwater aquariums between 30-60 gallons. The integrated 9-watt Sterilizer helps keep your aquarium healthy and crystal clear. The HW-402B defies its low price because it comes equipped not only with a built-in Sterilizer but all the necessary plumbing for installation and includes four large filtration media compartments allowing you to add the filtration media of your choice. The filtration media trays offer a fully customizable filtration system to suit your specific aquatic needs. The HW-402B includes three fine filter pads (white) and a single coarse filter sponge (blue) for enhanced Mechanical Filtration. With the addition of Premium Activated Carbon, Ceramic Rings, or Bio-Balls, you'll achieve superior filtration and crystal clear aquarium water. The HW-402B Canister Filter has a convenient Prime Pump that eliminates the need for manual siphoning! Say goodbye to a mouth full of aquarium water. Suitablefor freshwater and marine Dimension: 9" L X 9" W X 15.5" H Flow rate: 265gph (1000 L/H) Pump Power: 18w, Sterilizer power: 9w Ideal for 30-60 gallons Media includes: carbon, ceramic ring and bio ball