Oase Biomaster Pre-Filter Foam Set 6 – 30 ppi

ll replacement pre-filter foams come in sets of four or six for your replenishment needs.

Timing to replace the pre-filter foams varies upon aquarium size, number of fish and plants, and declines in filter performance. All BioMaster filter foams are compatible with any of the BioMaster models.

Suitable for:

BioMaster 250 – 4 units needed

BioMaster 350 – 5 units needed

BioMaster 600 – 6 units needed

BioMaster 850 – 6 units needed