Hozelock Bioforce 4500 Filter – 2013 Model
Rather confusingly this filter used to be called “Bioforce 8000” – the new title suggests the size of pond it should be run with if keeping koi.
Such a small filter is not really suitable for koi in our opinion but this is a decent solution for goldfish ponds up to 6750 litres (1500 gallons).
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