bbb A+ site secured

Fluval A421 - G3 Nitrate Filter Cartridge


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

Special Order. Ships in 5 days.
Get 5% Off When You Check Out With Auto Delivery
You Choose the amount of months, we take care of the rest.
Get Details
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 :

Write a review
  • Not reviewed yet
A421 is used in the following Models
 Fluval G3 Filter
" Have always been pleased with the speed and quality of your service. Recommend your company to anyone needing filters! " - Charles, Deland, FL
Terms of Use | Privacy Policy ©2005-2018 Filters Fast LLC - All Rights Reserved
Don't Miss Out on Exclusive email Icon
Promotions and Discounts!
By signing up for our
Free Newsletter, you'll receive
exclusive promotions, discounts
and more directly to your inbox
We respect your privacy .
*Cannot be combined with any other promotion