Aqueon Large Internal Filter Replacement Cartridge, 6 count

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About This Item

Details

  • Dense foam mechanical filtration removes particles and debris.
  • Activated carbon chemical filtration removes toxins, odors and discoloration.
  • Replacement required approximately every 30 days.
  • Cartridge can be easily rinsed to help lengthen its lifespan.
  • Large Cartridge fits QuietFlow Internal Filter models AT30 and AT 40 (sold separately).

Instructions

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

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Questions & Answers

2 Customer Questions

Does the replacement filter cartridge open to rinse and clean it

Answer by Chewy • Mar 30, 2023
The cartridge can be easily rinsed to help lengthen its lifespan.

is that the right filter for at40

Answer by Chewy • Jan 07, 2022
This Large Cartridge fits QuietFlow Internal Filter models AT30 and AT 40.
Reviews
Write a Review
4.7
Rated 4.7 out of 5 stars
33 Ratings
Terms & Conditions

10 Customer Reviews

Rated 5 out of 5 stars
By Pam on Jul 12, 2025

Quiet filter

This is a good 2nd filter for my 20 gallon turtle tank. If creates good water circulation and quality!

This is a good 2nd filter for my 20 gallon turtle tank. If creates good water circulation and quality!

Rated 5 out of 5 stars
By Deborah on Aug 18, 2025

Keep it clean

These work great in my 75gal turtle tank

These work great in my 75gal turtle tank

Rated 5 out of 5 stars
By Shirley on Feb 21, 2025

It was the one.

After looking and chatting twice we all discovered the right filter replacement for my aquarium. Now they are on auto-ship.

After looking and chatting twice we all discovered the right filter replacement for my aquarium. Now they are on auto-ship.

Rated 5 out of 5 stars
By Pam on Jul 17, 2025

need for her filters

finding them

finding them

Rated 5 out of 5 stars
By Elizabeth on Oct 18, 2024

Perfect refill filter! No issues

This filter does exactly what is promised, and these refills are affordable and easy to change out.

This filter does exactly what is promised, and these refills are affordable and easy to change out.

Rated 5 out of 5 stars
By Meagen on Oct 17, 2024

Cleans well

These filters keep my tank clean and are easy to change.

These filters keep my tank clean and are easy to change.

Rated 4 out of 5 stars
By Moshe on May 20, 2024

Both Positive and Negative Feedback

Overall, the submersible system is very good. On the plus side, it eliminates noise On the negative side, it not as effective as a traditional filter.

Overall, the submersible system is very good. On the plus side, it eliminates noise On the negative side, it not as effective as a traditional filter.

Rated 5 out of 5 stars
By Barbara on Oct 21, 2024

quick delivery

work great

work great

Rated 5 out of 5 stars
By David on Jul 20, 2022

JUST WHAT I ORDERED

This was my first time ordering from this site and was happily surprised with how fast my item arrived. I will be ordering again from this site.

This was my first time ordering from this site and was happily surprised with how fast my item arrived. I will be ordering again from this site.

Rated 5 out of 5 stars
By Cola on Jan 31, 2022

Filter carttridges

I have been using these cartridges for 10 years and have had no problem with them. I found them on Chewy and ordered them and I had them within 3 days

I have been using these cartridges for 10 years and have had no problem with them. I found them on Chewy and ordered them and I had them within 3 days