Oase BioStyle Disposable Cartridge Sets Select:set 4 Simply dip one test strip

Simply dip one test strip directly into the aquarium

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it efficiently captures solids and purifies the water for 4 to 6 weeks

the light and pump are low voltage and both are backed by a 12 month guarantee

The TetraTest pH Kit ensures you can monitor and manage pH effectively to keep your fish and plants thriving

Oase BioStyle Disposable Cartridge Sets Select:set 4 Simply dip one test stripDesigned for use with the Oase BioStyle Hang On Filters, the BioStyle Disposable Cartridges provide mechanical, biological and chemical filtration for amazing results. The multistage cartridges come supplied as standard with all BioStyle Filter models and have been designed to create clean and healthy conditions for your aquarium inhabitants. Key Features: Designed for use with the Oase BioStyle Hang On Filter range 5 Stage disposable filter cartridge