Internal aquarium filters take up little space, are hardly noticeable and yet have a powerful degradation capacity. The aquarium water is thus crystal clear and enriched with oxygen while toxic pollutants are broken down. The filters are modular and can be extended to suit any size of aquarium.
You can find out more about the JBL internal filters with lots of additional information and pictures here: Binnenfilter .
You can find out more about filtering in the JBL Themeworld at Aquariumfilters & Toebehoren .