Fluval U Clearmax Cartridge

5 reviews

Algae fighting Fluval U Clearmax Cartridges are available from Swell UK at a great price, fitting nicely into the U Series of internal filters to help kill algae blooms.


  • U2 Clearmax Cartridge (2 pack)
    code: A481 In stock Less than 10 in stock
  • U3 Clearmax Cartridge (2 pack)
    code: A482 In stock Only 5 left in stock
  • U4 Clearmax Cartridge (2 pack)
    code: A483 In stock Only 4 left in stock

Product Information

Remove nitrates and phosphates and lessen the risk of algae growth in your aquarium with these handy Fluval Clearmax cartridges designed to use with the Fluval U Series range of internal filters.

A high rate of nitrates within your tank is a great nutrient source for algae blooms which can quickly spread into a real problem. Adding the right Fluval U Cartridge to your filter will eradicate the problem before it begins.

The cartridges work by absorbing nitrates, nitrites and phosphates, all key ingredients for an algae problem. As the Fluval U Series of filters have an easy to use lid, simply pop in the cartridge and you're ready to go.

To work out the right cartridge for your filter, simply match the U Series number.

Also available are the fluval-u-filter-media sponges and carbon cartridges.

Each pack contains 2 Clearmax Cartridges

Latest Customer Reviews

  • Rating
    Date 27/08/2018 04:08am
    Fluval U3 Clearmax Cartridge (2 pack)
    Feefo Logo
    Best price. Easy to insert.
  • Rating
    Date 06/05/2018 10:05am
    Fluval U2 Clearmax Cartridge (2 pack)
    Feefo Logo
    Added to my cichlid tank to help with nitrates 5*
  • Rating
    Date 23/10/2016 20:10pm
    Fluval U4 Clearmax Cartridge (2 pack)
    Feefo Logo
    use them in my discus tank and they help to keep nitrite/nitrate levels down thereby reducing algae levels
  • Rating
    Date 02/09/2016 06:09am
    Fluval U3 Clearmax Cartridge (2 pack)
    Feefo Logo
  • Rating
    Date 05/08/2016 23:08pm
    Fluval U4 Clearmax Cartridge (2 pack)
    Feefo Logo
    Great proucts, easy to use.