![The first external filter with the technology to extend intervals between cleaning | EHEIM GmbH & Co. KG. Leading aquarium manufacturer. The first external filter with the technology to extend intervals between cleaning | EHEIM GmbH & Co. KG. Leading aquarium manufacturer.](https://eheim.com/media/image/0c/21/3f/150831090801.jpg)
The first external filter with the technology to extend intervals between cleaning | EHEIM GmbH & Co. KG. Leading aquarium manufacturer.
![The first external filter with the technology to extend intervals between cleaning | EHEIM GmbH & Co. KG. Leading aquarium manufacturer. The first external filter with the technology to extend intervals between cleaning | EHEIM GmbH & Co. KG. Leading aquarium manufacturer.](https://eheim.com/media/image/3b/0b/57/2271-2275_prof_4-_D-1.jpg)
The first external filter with the technology to extend intervals between cleaning | EHEIM GmbH & Co. KG. Leading aquarium manufacturer.
![Eheim External filter Prof. dr. 5th 700 electron 1850 l/h | EHEIM professional Potfilters | Filtersystemen Eheim External filter Prof. dr. 5th 700 electron 1850 l/h | EHEIM professional Potfilters | Filtersystemen](https://zeeaquarium-winkel.nl/content/Products/Eheim-Buitenfilter-Prof-5e-700-electron-1850-l-h.jpg)
Eheim External filter Prof. dr. 5th 700 electron 1850 l/h | EHEIM professional Potfilters | Filtersystemen
![Eheim Professional 4+ is the next generation of high end canister filters | Reef Builders | The Reef and Saltwater Aquarium Blog Eheim Professional 4+ is the next generation of high end canister filters | Reef Builders | The Reef and Saltwater Aquarium Blog](https://reefbuilders.com/wp-content/blogs.dir/1/files/2015/08/eheim-professional-3e-canister-filter.jpg)
Eheim Professional 4+ is the next generation of high end canister filters | Reef Builders | The Reef and Saltwater Aquarium Blog
![The first external filter with the technology to extend intervals between cleaning | EHEIM GmbH & Co. KG. Leading aquarium manufacturer. The first external filter with the technology to extend intervals between cleaning | EHEIM GmbH & Co. KG. Leading aquarium manufacturer.](https://eheim.com/media/image/8c/44/c7/170111020125.jpg)