The Eheim Professional 3e series not only benefits from the size and efficiencies of the standard Eheim Professional 3 range, it also includes microprocessors which provide an unsurpassed level of control for your filter. This includes the ability to control and vary the flow rate of your filter to create highly natural, constantly changing, flow conditions in the aquarium; an electronic service indicator, electronic error message facility, together the with ability to connect your filter to your PC via USB (Eheim Professional 3e 2074 models and upwards).
The Eheim Professional 3e series is unsurpassed for innovation and functionality.