Features

• 30 ppi coarse Pre-filter foams effectively remove debris prior to water entering the main body of the filter, reducing filter maintenance
• Optimize your BioMaster filtration by using these pre-filter foams based on your aquarium’s needs
• Timing to replace the pre-filter foam set varies upon aquarium size, number of fish and plants, and declines in filter performance. We recommend replacing the foams incrementally.
• The 30 ppi foams are pre-filter foams for the BioMaster 250, BioMaster Thermo 250, BioMaster 350, BioMaster Thermo 350, BioMaster 600, or BioMaster Thermo 600