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Filter sponges

Filter sponges for OASE Filter

The sponges of the OASE filters should be replaced every 3-4 years. These will lose their strength over time. This makes the cleaning more difficult and the filter effect decreases. The winter tip: If you should take your filter system out of operation in winter, we recommend to hang sponges in the pond. The biofilm is retained, the filter is more efficient again in spring.