Oase Filter Foam BioMaster 20ppi Blue

The Oase Filter Foam BioMaster 20ppi Blue Replacement Filter Foam for the BioMaster 250, 350, 600 or 850 is 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

BioMaster 250 – 2 foams needed

BioMaster 350 – 3 foams needed

BioMaster 600 – 3 foams needed

BioMaster 850 – 4 foams needed