eheim external filters

  1. Zak Rafik

    Eheim external filters - stated flow = actual flow?

    Hi guys, I want to know if the stated flow ( litres per hour ) for Eheim external canisters are anywhere near the actual flow. I have asked a few friends working in LFS and I was informed that Eheim filters can be trusted with the stated flow and that they actually test the flow with media...
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