Fluval Underwater Filter Poly/Carbon Cartridge, 2 count
Frequently Bought Together
About This Item
- Helps eliminate harmful contaminants and keeps your fish safe.
- One side features a polyester filter pad that removes fine debris and contaminants.
- The other side contains carbon to remove dangerous contaminants along with unwelcome colorants and odors.
- Specifically designed for use in the Fluval Underwater Filter for Aquariums, Size U4.
- Ships in a pack of two cartridges; suitable for use in freshwater, marine or reptile environments.
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Questions & Answers
5 Customer Questions
ReviewsWrite a Review
7 Customer Reviews
Bought this due to it recommending it as a compatible filter for rf-s top fin product and it is completely WRONG. Why are filters impossible to locate or fit in my tank?!
They actually filter..
Massive turtle poo. Not sure what else is needed. These go with my Fluval F4 and that’s all I got to say about that..............
Only the Best for the Turtles
I use fluval products for my underwater filter systems they are great!
stay away waste of money
WATER IS GREEN AFTER 4 DAYS, I changed 3/4 of water and again in four days I could barely see my fish. never had this problem before using this system. Wasted my money and my time with this product. My service from Chewy was GREAT ,just a bad choice from Fluval!!!!
great price for an amazing product, i use this in my res turtle tank and it keeps the water crystal clear
Great product great company! Ready to order again.
This protest is great and greater still is Chewy.com. Getting ready to order again!!!
be careful when ordering your Fluval filter!
There are two, one with carbon, another with just charcoal. This one works very well, but the other one does not work well at all in my experience. With the other one, my turtle tank water got murky after two days. With this one it has been crystal clear for two weeks now.