Vendeur: iivs_123 (953) 99.1%, Lieu où se trouve: kyustendil, kyustendil, Lieu de livraison: Americas, Europe, Asia, AU, Numéro de l'objet: 222031063390 Brand: JBL, Les Détails: Open-pored sponge for efficient biological filtering. Sponge size: 10 cm x 8 cm. Can be used repeatedly by rinsing. Make sure not to forget starter bacteria (JBL FilterStart) after cleaning or adding new fish. The spare sponges for TekAir und fï¿½r JBL CristalProfi i40 are absolutely identical in their sizes. They differ only in the colour (TekAir sponge is grey, CristalProfi i40 sponge is blue). Furthermore the TekAir sponge has a finer sponge structure (40 ppi) than the JBL CristalProfi i40 sponge (25 ppi).