Description
The 20 ppi Replacement Filter Foam for the BioMaster 250, 350, 600, or 850 and BioMaster Thermo 250, 350, 600, or 850 includes an ultra-coarse replacement filter foam
Customize your choice of filter foams to meet the needs of your aquarium
Timing to replace the filter foam varies upon aquarium size and the number of fish and plants
