The 30ppi replacement filter foam for the BioMaster 250, 350, 600 or 850 is a 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
BioMaster 250 – 1 foam needed
BioMaster 350 – 1 foam needed
BioMaster 600 – 1 foam needed
BioMaster 850 – 1 foam needed