Aqueon Large Filter Cartridge Replacement, 3 count

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About This Item

Details

  • Patented dual-sided replaceable dense-floss cartridges help filter out more particles and debris.
  • Helps enhance water quality and clarity while increasing oxygen levels.
  • Contains over 25% more activated carbon than most comparable cartridges and ensures even carbon distribution for thorough filtration.
  • Fits Aqueon QuietFlow 20 and larger power filters.
  • Filters out particles, debris, impurities and odors.

Instructions

Learn More About Aqueon From Our Team of Experts

Effortless Filtration for Cleaner Water

Maintaining clean, healthy water in your aquarium is simple with Aqueon replacement filter cartridges. Available in a variety of sizes to work with QuietFlow Filter models, they feature high-quality activated carbon to remove toxins and particulates.

All About the Fish

Aqueon strives to do what’s best for the health and well-being of fish and aquatic life. They focus on the little things that make your life easier when keeping an aquarium, so it’s easier to keep your fish happy and healthy.

Easy to Install

Aqueon filter cartridges are designed for quick and hassle-free installation, so replacing your cartridge is always a breeze. Simply rinse under cold water and install using the "front" orientation tab—or follow specific product instructions.

Premium Quality

Aqueon Replacement Filter Cartridges are dual-sided and feature dense floss with over 25% more activated carbon. This proprietary design ensures even distribution of activated carbon to remove impurities for optimal water filtration.

About Aqueon

Developed by Aquatic hobbyists, Aqueon provides a broad array of aquarium solutions to help maintain healthy aquatic environments.

Shop Aqueon

Questions & Answers

2 Customer Questions


what is the actual size of this filter. The one I need measures 5 1/2 X 61/2 in. Thank you.

Answer by ChewyDec 12, 2017
The Large replacement cartridges measure 5.6 x 8.4 x 4 inches, it sounds like you have the Medium size.

Do you sale replacement filter for aqueon Large size the 3count

Answer by ChewyOct 20, 2018
The Aqueon Large Replacement Filter Cartridge are currently only available in a 12 count box.
4.9
Rated 4.9 out of 5 stars
132 Ratings

57 Customer Reviews



Rated 5 out of 5 stars
By Kaylea on Dec 17, 2025

Good filter

This filter was good for my indoor tank while I had my turtle, after getting the water cycle good, it was about to keep up with turtle waste with 20-40% water changes

This filter was good for my indoor tank while I had my turtle, after getting the water cycle good, it was about to keep up with turtle waste with 20-40% water changes every week.


Rated 5 out of 5 stars
By jenny on Jan 19, 2026

customer service

it was great and she loves it

it was great and she loves it


Rated 5 out of 5 stars
By Belinda on Aug 26, 2025

The price, and received in a timely matter.

It does what it suppose to , help keep my fish tank clean.

It does what it suppose to , help keep my fish tank clean.


Rated 5 out of 5 stars
By sandra on Mar 31, 2025

good filter....

use them all the time... I can take out and rinse twice before replacing..... :)

use them all the time... I can take out and rinse twice before replacing..... :)


Rated 5 out of 5 stars
By Kim on Mar 21, 2025

How quickly it was delivered to my house.

I really haven’t ordered anything for the dog or cat but I’m sure I will soon.

I really haven’t ordered anything for the dog or cat but I’m sure I will soon.


Rated 5 out of 5 stars
By Jan on Mar 22, 2025

Easy to Use!

Perfect filters and easy to use. They last a long time.

Perfect filters and easy to use. They last a long time.


Rated 5 out of 5 stars
By Josh on Aug 7, 2025

price

gets the job done

gets the job done


Rated 4 out of 5 stars
By Dan on Feb 28, 2025

Makes the water clear in 2-4 hours

Easy to use. Blocks crud really well.

Easy to use. Blocks crud really well.


Rated 5 out of 5 stars
By Dave on Jan 21, 2025

What I expected

Good price and product.

Good price and product.


Rated 5 out of 5 stars
By Riley on May 10, 2024

Aqueous Large Filters, Works Fine, No Issues

Got the name brand filters I needed, ordering was fast and easy and I had the Aqueous Filters within a couple days.

Got the name brand filters I needed, ordering was fast and easy and I had the Aqueous Filters within a couple days.