The Eheim Classic 2213 chamber canister design allows for the greatest flexibility in media set up for biological, mechanical, chemical and absorptive filtration. The flow rate has been calculated to provide the exact balance needed between mechanical/biological long-term filtration and water circulation and oxygen enrichment, resulting in optimum conditions for successful aquarium keeping. The 2213 has a pump output of 116 GPH and is suitable for tanks up to 65 gallons. Comes complete with media (Ehfisubstrat, Ehfimech, fine and coarse filter pads) and quick disconnect valves. Also included is the media container. The manufacturer recommends this filter for both freshwater and saltwater aquariums. (Classic 250) 6.3" x 14"