OASE BioMaster 250 External Canister Filter Black, Blue, 1ea


The BioMaster line of premium external filters are perfect for marine and freshwater aquariums. The BioMaster 250 boasts 4-stage filtration in a compact design. Biological, mechanical, chemical, and prefiltration all work together to provide your aquarium with optimal water quality and clarity.  Customize your prefilter by combining coarse, fine, ultra fine, and activated carbon filter foams.

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