- Clear water, healthy fish: replacement filter sponge for JBL ProCristal i 30
- Clear aquarium water: replace the filter sponge every 3 months.
- Best cleaning: pore size 30 ppi
- Best biological filtering: promotes the settlement of beneficial cleansing bacteria.
- Package contents: replacement sponge for JBL CristalProfi i 30, ProCristal i30 FilterSponge