OASE 30 ppi Prefilter Foam For Biomaster - Set of 6

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  • The Pre-filter Foam Set 30 ppi for the BioMaster 250350600, or 850 and BioMaster Thermo 250350600, or 850 includes 6 fine 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