Photo 1 of Biowheel Aquarium Filters Compatible with Penguin PRBW2350B 200 350 Fish Tank, Assembly Hang On Filters Cartridge Replacement Part for Bio-Wheel 200B 350B, 4 Pack

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Photo 1 of Biowheel Aquarium Filters Compatible with Penguin PRBW2350B 200 350 Fish Tank, Assembly Hang On Filters Cartridge Replacement Part for Bio-Wheel 200B 350B, 4 PackPhoto 2 of Biowheel Aquarium Filters Compatible with Penguin PRBW2350B 200 350 Fish Tank, Assembly Hang On Filters Cartridge Replacement Part for Bio-Wheel 200B 350B, 4 Pack