Oase BioMaster Carbon Pre Filter Foam

• The carbon pre-filter foam set for the Bio master 250, 350, or 600 includes 6 carbon replacement filter foams

• Safely regulates the pH value and water Hardiness

• Activated carbon absorbs unwanted substances in aquarium water

• Customize your choice of filter foams to meet the needs of your Aquarium

• Carbon filter foams make replacement much simpler than common granular forms

 

Oase Biomaster 250 needs 4 foams

Oase Biomaster 350 needs 5 foams

Oase Biomaster 600 needs 6 foams

Oase Biomaster 850 needs 6 foams