OASE BioMaster Pre-filter Foam 45 ppi- Set 6

The Pre-filter Foam Set 45 ppi for the BioMaster 250, 350, or 600 includes six fine replacement filter foams. The combination of coarse and fine filter foams allows you to customize to meet the filtration needs of your aquarium. It is best to replace the pre-filter foam when you notice a decline in aquarium filter performance.

• The Pre-filter Foam Set 45 ppi for the BioMaster 250, 350, or 600 includes 6 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