Fluval U4 Poly/Clearmax Filter Cartridge

By Fluval
Rated 2.8333 out of 5 stars
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Fluval U4 Poly/Clearmax Filter Cartridge slide 1 of 1
Slide 1 of 1
Fluval U4 Poly/Clearmax Filter Cartridge slide 1 of 1
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$13.55Chewy Price
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$18.99Chewy Price
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This Item - Fluval U4 Poly/Clearmax Filter Cartridge
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Total Price: $0.00

About This Item

  • 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.

Compatible Products

Ensure your system runs smoothly with Fluval Underwater Filter.


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Fish TypeTropical Freshwater, Marine FishTropical Freshwater, Marine FishTropical Freshwater, Marine FishTropical Freshwater, Marine FishTropical Freshwater, Betta, Cichlid, Goldfish, Marine Fish
MaterialPolyester, Synthetic FabricFoamFoamPlasticMesh, Synthetic Fabric
Aquarium TypeFreshwater, SaltwaterFreshwater, SaltwaterFreshwater, SaltwaterFreshwater, SaltwaterFreshwater, Saltwater

Questions & Answers

1 Customer Questions


What are the dimensions of these filters?
Answer by ChewyNov 06, 2018
The dimensions are 8.6 inches long x 2.4 inches wide x .7 inches high.

ReviewsWrite a Review

2.8
Rated 2.8333 out of 5 stars
6 Reviews
50%
Would recommend to a friend
1
50
50%
2
0
0%
3
0
0%
4
16.6667
17%
5
33.3333
33%

6 Customer Reviews



Rated 1 out of 5 stars
By Disappointed on Sep 20, 2020

weird red brownish stuff on new items

Why did my cartridge arrive with this red tint to it???? So confused


Rated 5 out of 5 stars
By Bridgett on Aug 24, 2018

Love these filters

I have always paid more and got the filter for algae but reading the reviews I decided to get the plain filters to save money, big mistake, within a couple of days our tank was a mess with algae and discoloration and odor I never had that problem with these filters I recommend them 100%, I have a very large red earred slider and it is hard to keep his tank clear, but not with these filters I will never buy the plain filters again these get the job done!


Rated 1 out of 5 stars
By tortuga on Jul 3, 2017

these do not work

The carbon filter cartridges work. These do not. I can do a 60% water replacement and the water is murky and filled with fine particulates the day after installing these with new sponges. The carbon filters work. These do not.


Rated 4 out of 5 stars
By Mimi on Nov 21, 2016

Fluval filter

This product does it's job well and my tank benefits from it.


Rated 5 out of 5 stars
By xxLauraxx on Sep 19, 2016

good product

Good product and I like ordering from chewy. Good prices and fast delivery.


Rated 1 out of 5 stars
By Bethany on Aug 25, 2016

Ineffective

To be fair I thought I was ordering the carbon filters, but didn't pay close enough attention. However, I gave these a try and found them to be next to useless. The water is consistently cloudy. The description says they will collect fine particulates, but this is simply not true. I absolutely love my filter and other filter pads that are available, but will never order these again. Blessedly this was an inexpensive mistake.