JBL Symec 250g XL - filter floss

The dense Symec XL filter floss is ideally suited as a mechanical-biological filter medium. It can be cleaned multiple times, is resilient, and is a good and proven product, replacing more expensive filter media and excellently meeting filtration expectations without leaving fibers. Thanks to its special thick structure, it maintains its volume, which is particularly important for biological media. Rinse in warm water before use.