Oase Biopress 4000 Replacement Filter Foam Set
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Replacement foam set Oase Biopress 4000
For BioPress Set 4000. The heart of a filter are its filter sponges - especially this filter sponge set, which combines the blue and black sponges in a small space. Black filter sponges have the finest filtration properties, while the blue ones are rough. This means that depending on the flow rate of the water, the smallest or only larger particles get caught in the sponges and are thus removed from the pond water. But they not only do the classic filtration, but also offer the smallest bacteria plenty of living space. This small biological oasis in the filter sponges ensures the conversion of toxins in the pond: In the blue sponges, toxic substances are converted into harmless but algae-stimulating substances (nitrification), which in turn are converted into naturally occurring gases in the black ones (denitrification).
Replacement foams to fit the Oase Biopress 4000 (47601)
Included in the foam pack is 1 x black foam and 1 x blue foam
Genuine Oase part number: 15558
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