Juwel BioCarb XL Carbon Sponge for Bioflow XL (8.0). The filter sponge is enriched with active charcoal for binding odours, discolouration and toxic compounds in water. It is recommended to replace these sponge on monthly basis. Comes in 2pc per pack. Suitable for JUWEL Rio 400, Vision 450 & Trigon 350.
