- The 20 ppi Replacement Filter Foam for theBioMaster250,350,600, or850and BioMaster Thermo250,350,600, or850includes 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
-44%
Oase BioMaster 20 ppi Blue Filter Foam
$6.14 Save:$4.00(44%)
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