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Your cart is empty.Fluval Poly/Carbon Cartridges features two sides for effective chemical filtration, the crucial second stage in the filtration process. The polyester filter pad side filters out fine debris and contaminants. The Carbon side filters out harmful liquid substances, colorants and odors. For freshwater, marine or reptile environments. For U series filter model: U3
Stephen Bedlington
Reviewed in the United Kingdom on March 10, 2025
Happy fish now.
jcollins2
Reviewed in the United States on August 6, 2024
Perfect size I couldn’t find it in the stores, Of course Amazon had it
Lisa
Reviewed in Canada on August 4, 2024
This is a hard size to find in pet stores. Glad I can get them here!
Kindle-Kunde
Reviewed in Germany on August 30, 2024
Artikel schnell geliefert, Wäre wie beschrieben.
vito
Reviewed in Italy on December 9, 2024
IL Fluval A491 Filtro Carbone Attivo è ottimo. 5S. Vito
Customer
Reviewed in the United States on July 25, 2023
Replacement filter for the fluval aquarium pump. Works great.
p Allen grizzard jr
Reviewed in the United States on June 18, 2023
For my 30 gallon tank this filter and accessories is great.Works well
Cecil F. Stark
Reviewed in the United States on March 7, 2023
Replace these filters for my two tanks.
Andy M.
Reviewed in Germany on December 10, 2023
Gute Ware, schnelle Lieferung, immer wieder gerne
Mel Guzman
Reviewed in the United States on February 8, 2022
These are kinda hard to find so i have these saved and I've bought a few times for my turtle tank. They are exactly what I need for her filter.
AA
Reviewed in the United States on November 19, 2022
Water flow is great again. Thanks for the new filter. I tried cleaning the old filter several times but still doesn't work good.
Ann P.
Reviewed in the United States on February 27, 2021
I've used these filters for years on my aquarium. I used to pay so much more when I bought them at the pet store. Now I can't even find them in the pet store. So glad I found a reasonably priced source.
Joe F
Reviewed in the United States on May 11, 2014
I've used several different filter systems on my various aquariums. I love this underwater one the most. No constant running water. It keeps the tank clean and the filter elements last a long time.
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