Eheim Professionel 4+ External Filter Treatments & Testing Emergency Nitrite and Nitrate Detoxification:

Emergency Nitrite and Nitrate Detoxification: To detoxify nitrite and nitrate in emergency situations

It can be used in a variety of aquarium setups

Vision 180 (T5/T8)

and Intestinal Worm

- The high proportion of hydrolised proteins is transformed into body mass

Eheim Professionel 4+ External Filter Treatments & Testing Emergency Nitrite and Nitrate Detoxification:The EHEIM professionel 4+ our best external filter but now with an integrated emergency button. We have adopted the many advantages of the professional 3 series powerful performance, optimal energy efficiency, quiet operation, priming aid, safety hose adapter but we have also improved the technology by incorporating the new Xtender button. In the event the output is reduced due to the fine filter media blocking, the button can be adjusted to redirect