OASE 60 ppi Prefilter Foam FOr Biomaster - Set of 6
- The Pre-filter Foam Set 60 ppi for the BioMaster 250, 350, or 600 includes 6 ultra fine replacement filter foams
- Customize your choice of filter foams to meet the needs of your aquarium
- Timing to replace the pre-filter foam set varies upon aquarium size and the number of fish and plants