Fluval U2 Poly/Clearmax Filter Cartridge, 4 count

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About This Item

Details

  • Helps control green water and unsightly algae growth for a clear, beautiful tank.
  • Chemical filter media helps to absorb and trap phosphate, nitrite and nitrate.
  • Encourages crystal clear water, helps to reduce odors and encourages the ideal conditions for fish and plants.
  • Helps to reduce overall aquarium maintenance, so you can enjoy your tank more and worry about it less.
  • Convenient two-pack gives you one cartridge for now, and one for later.

Instructions

Questions & Answers

1 Customer Questions


I am unable to find filter media bags for my clearmax. Have been using this in my 2 1/2 gal tank placing it in a corner. Can I put one of these in place of a bag of Clearmax. As always thank you for your help.

Answer by ChewyJul 09, 2019
This filter helps to supports crystal clear water, helps to control odor and works to reduce overall aquarium maintenance. Depending on the type of filter media you used to fill your filter media bag, it will be a great comparable item to keep your water clean.
4.4
Rated 4.4 out of 5 stars
26 Ratings

8 Customer Reviews



Rated 5 out of 5 stars
By Nora on Jun 26, 2025

Sparkling clear water

I didn’t think the clearmax would make much of a difference, but was very pleasantly surprised. Both aquariums we used it in have crystal clear water now. We will

I didn’t think the clearmax would make much of a difference, but was very pleasantly surprised. Both aquariums we used it in have crystal clear water now. We will definitely choose the Fluval clearmax over the carbon filters from now on.


Rated 5 out of 5 stars
By Aaron on Jan 27, 2025

Easy shopping

Nice to know Chewy carries supplies for my aquariums too. So nice to have it delivered because my local pet stores don't carry everything I need.

Nice to know Chewy carries supplies for my aquariums too. So nice to have it delivered because my local pet stores don't carry everything I need.


Rated 5 out of 5 stars
By Nancy on Jan 12, 2025

My turtle is 40 years old and her filter needs Fluval parts!

I cannot get Fluval at the pet store!

I cannot get Fluval at the pet store!


Rated 1 out of 5 stars
By Christine on Oct 31, 2024

Wrong type

I ordered the wrong thing- I meant to order Fluval C2 14008

I ordered the wrong thing- I meant to order Fluval C2 14008


Rated 5 out of 5 stars
By LAURA on Nov 7, 2020

Clear filter

Wanted to clarify to other readers... This filter is not a carbon filter and does not claim to be, granted there is a small amount of carbon inside the filter but

Wanted to clarify to other readers... This filter is not a carbon filter and does not claim to be, granted there is a small amount of carbon inside the filter but this is a clearmax filter and not a poly/carbon filter. I use one of these on one side of my U2 power filter and a poly/carbon filter on the other side and it works just great, water is crystal clear all the time and no algae.


Rated 2 out of 5 stars
By Kemi on Sep 28, 2020

Disappointed

I got these thinking they were the same, or at least as good, as the other poly cartridge for my fluval and they're not. There's hardly any carbon compared to the

I got these thinking they were the same, or at least as good, as the other poly cartridge for my fluval and they're not. There's hardly any carbon compared to the others ones having one side be carbon, and wear out very quickly.


Rated 1 out of 5 stars
By Flyers on Jul 22, 2018

Great price....not carbon filter

I thought these were the correct “carbon” filters for this Fluval filter but there’s not even a tablespoon of carbon in the ones I bought. I’m going to buy a box

I thought these were the correct “carbon” filters for this Fluval filter but there’s not even a tablespoon of carbon in the ones I bought. I’m going to buy a box from nearest pet store and compare but I’m pretty sure these ones are defective - all 5 boxes


Rated 4 out of 5 stars
By Isabela on Mar 23, 2017

Product as expexted

We had hard time getting this product from our local pets stores and we're happy to be able to have it delivered with out monthly dog food order.

We had hard time getting this product from our local pets stores and we're happy to be able to have it delivered with out monthly dog food order.