Fluval SPEC/EVO/Flex Aquarium Filter Media Replacement Bundle, BioMax and Replacement Carbon Filter Media for Aquariums
- Premium biological and mechanical filtration media designed specifically for the Fluval 306, 307 canister filters.
- Bio-Foam Max: 2-in-1 biological and mechanical filtration media with rippled surface pattern offers 30% more area for increased debris and waste capture.
- Bio-Foam: mechanical filtration media precision cut (no gaps) to prevent debris bypass and complex foam structure maintains consistent water flow.
- Bio-Foam+: mechanical and biological filtration media with large porous surface that supports expansive beneficial biological activity.
- 6-month supply for use in freshwater and saltwater aquariums.