These Classic external filters have been perfect models for large aquariums up to 1500 liters in capacity for many years. With a large filter volume (17 liters to 23 liters) and powerful pumps (1200 l/h to 2400 l/h), large aquariums are filtered efficiently. The large model 2260 is equipped with a drain tap in the bottom of the filter, making it easy to change the filling.