As well as the usual Biomax media for your aquarium filter, you may wish to add a U1/U2/U3/U4 Clean & Clear Cartridge from Fluval.

These cartridges have been packed with high-performance resins which have been proven to reduce nitrate and phosphate within the aquarium resulting in a cleaner, clearer and more healthy environment for your fish. Simply insert the cartridge into your filter alongside the already present filter media and the results will speak for themselves.

Suitable for the U1, U2, U3 and U4 Fluval internal fish tank filters.

Comes as a pack of 2.

Key Features

  • Provides your aquarium with the optimal biological balance
  • Helps to keep aquarium water crystal clear
  • Extends the time between water changes
  • Simply add to the central Fluval U-filter cartridge alongside the Biomax media
  • Comes with 2 cartridges
Delivery Information

Fast Free UK Delivery on orders over £60.00.*
Smaller orders under £60.00 are subject to a £4.95 delivery charge. Delivery will typically be made within 2 - 3 working days but may be extended during peak times.

We Can Offer Next Day Delivery for £7.95*
To meet our deadline for this service you must order before 11.00am to ensure delivery for the next working day. This excludes weekends and bank holidays.

*Extra charges or restrictions will apply to certain UK postcodes. These include parts of Scotland, The Highlands, Northern Ireland and offshore Isles. Please note Next Day delivery is not available to these locations. Please click here for a full list of postcode exclusions and contact us today for a personalised quote. 

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