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 6
***Carbon PreFilter Foam
***Coarse - 30ppi
***Normal - 45ppi
***Fine - 60ppi