Oase BioMaster 20 PPI Blue Filter Foam

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