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Replacement for Model Fluval G3 Filter

Fluval A421 - G3 Nitrate Filter Cartridge


Fluval A421 - G3 Nitrate Filter Cartridge
as low as $23.99 /ea
As low as
Retail: $29.99
You Save: 20%

in stock
Ships by Monday 10/31/2016
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Product Information

The Fluval A421 is a nitrate adsorbing filter cartridge that is for use in the following aquarium filtation system:

  • Fluval G3 filter

The Fluval A421 - G3 Nitrate Filter Cartridge removes up to 13000 mg of nitrate ion in freshwater aquariums. This Fluval G3 replacement helps even out the nitrate level in your freshwater aquarium. Nitrate concentration should not exceed 20 mg/L in freshwater aquariums. Planted aquariums require approximately 5 mg/L of nitrate as a source of nitrogen for healthy plant growth. This nitrate filter features a long-lasting large capacity ion exchange resin.

The Fluval A421 specifications:

  • Nitrate adsorbing cartridge
  • Removes up to 13000 mg of nitrate ion in freshwater aquariums
  • Helps even out nitrate level in aquarium
  • Long-lasting large capacity ion exchange resin


Fluval A421 - G3 Nitrate Filter Cartridge Product Reviews :

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A421 is used in the following Models
 Fluval G3 Filter
" Thanks for the fast service. All items were included in the order and arrived in good condition. " - Tom, Temperance, MI
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