OASE BioMaster PreFilter Foam Set (30/45/60ppi)

Replacement foam for biomaster The Pre-filter Foam Set 30 ppi for the BioMaster 250, 350, 600, 850 and BioMaster Thermo 250, 350, 600, 850 includes 4 coarse replacement filter foams Customize your choice of filter foams to meet the needs of your aquarium Timing to replace the pre-filter foam set varies upon aquarium size and the number of fish and plants Available in Set of 4, ***Carbon PreFilter Foam Available in Set of 6 ***Carbon PreFilter Foam ***Coarse – 30ppi ***Normal – 45ppi ***Fine – 60ppi