External (HOB)

Hang on Back overflows allow you to plumb your display tank to a sump or other filtration systems, without having to drill any holes in your aquarium. Using a siphon principal, external overflows will bring the water up and over the edge of your tank, before it travels down to your sump. Since the water is being pulled above your aquariums rim, we highly recommend water on floor sensors and a constantly running pump to ensure air does not build up in the overflow and stopping the siphon.
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12 Items

  1. PF-300 HOB Overflow
    Eshopps
    PF-300 HOB Overflow
    $119.98

    $119.98
  2. PF-800 HOB Overflow
    Eshopps
    PF-800 HOB Overflow
    $129.98

    $129.98
  3. PF-1000 HOB Overflow
    Eshopps
    PF-1000 HOB Overflow
    $149.98

    $149.98
  4. PF-Nano HOB Overflow
    Eshopps
    PF-Nano HOB Overflow
    $89.98

    $89.98
  5. PF-1200 HOB Overflow
    Eshopps
    PF-1200 HOB Overflow
    $159.98

    $159.98