The CristalProfi Internal Filter range help create a clean and healthy aquarium environment. The JBL CristalProfi i60 Greenline Internal Filter provides both mechanical and biological filtration in aquariums 40-80 litres in size. Their modular design means the filter capacity can be easily extended if required. Plant and food remains, as well as fish waste can lead to a deterioration of the water quality in an aquarium. The use of suitable filtration such as the JBL CristalProfi provides healthy water conditions which are a necessity for fish and plants to thrive. Internal Filters circulate the aquarium water and remove waste and debris, whilst beneficial bacteria which colonise within the filter decompose any harmful substances which may build up. The CristalProfi i60 Internal Filter comes supplied with filter media, making it ready for installation straight out of the box. The water outlet is rotatable by 90 and includes both a wide jet outlet and spray bar for multiple water return options. When cleaning the CristaProfi a specially designed valve system allows the filter to empty when it is removed from the aquarium whilst preventing any dirty water from flowing back into the tank. The i60 Internal Filter is extremely energy-efficient and just 4w resulting in large energy savings. Creates a clean and healthy aquarium environment Internal filter providing mechanical and biological filtration Suitable for 40-80 litre aquariums Complete with filter media, for use straight out of the box Includes both wide jet and spray bar outlet connections Modular design allows filter capacity to be increased as required 90 rotatable water outlet Large filter volume Valve system prevents dirty water from flowing back into the tank when cleaning Elegantly designed corner shape Completely submersible Energy efficient using only 4W making a 63% saving with new motor technology Pump provides constant water circulation with adjustable output from 150-420lph 2 + 2 = 4 Year Guarantee