Sera biopur is a filter medium for external and internal filters in fresh and salt water. Sera biopur is highly effective and can be washed out several times. The large settling area for bacteria and the large cross-section of the individual clay tubes ensure optimum water flow and make long term filtering possible..
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Sera biopur is a filter medium for external and internal filters in fresh and salt water. sera biopur is highly effective and can be washed out several times. The large settling area for bacteria and the large cross-section of the individual clay tubes ensure optimum water flow and make long term filtering possible.
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