The Aqua One 4C Carbon Cartridge is a genuine replacement filter cartridge made specifically for the Aqua One AquaStyle 850 aquarium. Its activated carbon helps remove discolouration and odours, keeping your water clear.

This pack contains 2 cartridges (code 25004C). They slot straight into the aquarium’s built-in filter, so changing them is quick and simple.

Key Features

• Chemical filtration: Activated carbon helps reduce discolouration and odours.
• Clearer water: Keeps your aquarium looking fresh between water changes.
• Easy to change: Remove the old cartridge and slot in the new one.
• Genuine Aqua One part: Made to fit the AquaStyle 850 filter system.
• Value pack: 2 cartridges per pack.

Compatible With

• Aqua One AquaStyle 850 (only)

How to Use

1. Switch off and unplug the aquarium filter.
2. Remove the old cartridge from the filter compartment.
3. Rinse the new cartridge briefly in tank water to remove carbon dust.
4. Slot the new cartridge into place and switch the filter back on.

Please note: Replace cartridges every 4–6 weeks, or sooner if the water discolours. Carbon can absorb some medications, so remove the cartridge while treating your aquarium and replace it once treatment is finished.

Suitable For: Aqua One AquaStyle 850 aquariums.