What is this piece of equipment? inline air bubbler

  1. F

    Florian Pellet Well Known Member Member

    Hi everyone,
    I just stumbled upon an interesting piece of equipment: https://youtu.be/1KpN9O5oXoE?t=4m29s

    At 4:30, the guy shows some sort of plastic fitting that he uses to attach his airline to the Eheim outlet, and he claims that this way he can oxygenate the water without making any noise. Can you tell me what this is and is it sounds plausible?
  2. Aquaphobia

    Aquaphobia Fishlore Legend Member

    Yep, I have seen something like that! Not packaged for sale by itself but it was part of the Hagen Elite Mini underwater filter. I think some part of its internal workings is based on the Venturi Effect but in any case it does end up bringing air into the system and creating disturbance at the water's surface.
  3. OP

    Florian Pellet Well Known Member Member

    Might just have found an equivalent product if anyone is interested: Eheim power air diffuser