Photo 1 of **USED** OASE BioStyle Power Filter for Aquariums up to 30 gallons, Multi-stage Filtration, Easy Maintenance, Quiet Hang on Back Filter, White White 30

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Photo 1 of **USED** OASE BioStyle Power Filter for Aquariums up to 30 gallons, Multi-stage Filtration, Easy Maintenance, Quiet Hang on Back Filter, White White 30Photo 2 of **USED** OASE BioStyle Power Filter for Aquariums up to 30 gallons, Multi-stage Filtration, Easy Maintenance, Quiet Hang on Back Filter, White White 30Photo 3 of **USED** OASE BioStyle Power Filter for Aquariums up to 30 gallons, Multi-stage Filtration, Easy Maintenance, Quiet Hang on Back Filter, White White 30