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Keep the water in your aquarium clean and safe for your fish with this value pack of Top Fin EF-S Element Filter Cartridges. The cartridges in this 6-month supply feature activated carbons, and have proven highly effective in removing waste, odors and more from your aquarium water. Features: With activated carbon to help remove heavy metals, odors, pigments, and organic waste Refill for Top Fin BFS Bettaflo Filter and Desktop Aquariums with Element Filters 6 Count Includes: 6 Count Intended Pet(s): Fish Material(s): Carbon Color: White, Black Product Dimensions: 2.1 in L x 3.7 in W (5.3 x 9.3 cm)
Gina
Reviewed in the United States on March 22, 2025
It is great to be ordering filters in bulk because I change filters once a week. I probably order more in the future
Joey
Reviewed in the United States on August 24, 2024
On time, good price, works for me
Shella Bycura
Reviewed in the United States on February 29, 2024
Perfect for our needs
Lindsey A House
Reviewed in the United States on July 12, 2023
These filters have worked great, and they’re cheaper on Amazon, then buying them at the pet store. We use them for our beta fish, and our fish or over a year old now.
Erica
Reviewed in the United States on November 26, 2023
Easy to change and not very expensive.
kcrawford
Reviewed in the United States on January 25, 2023
These are the perfect filters for my fish tank. I can't find them in my local stores. They are reasonably priced and last a long time.**Fish tank tip: My mother in law told me to put a snail in my tank with the fish. The snail helps keep the tank much cleaner. I hardly ever need to clean the tank!
Ross R.
Reviewed in the United States on June 6, 2021
Needed these replacement filters for my kids fish tank. Work just as designed since it's same brand/model as is required. Slightly more expensive than getting them from the local store, but since they were all sold out with no sign of any replacements coming in I ordered these and got them in 2 days.
Madeline
Reviewed in Canada on March 14, 2021
The filters work very well to keep the tank clean for “Flynn “ my fish.
bwells_forever
Reviewed in the United States on October 1, 2021
Although this still isn't the best price around (4 stars for the price), it's better than getting it directly from a pet store, so I will give it that. Fit in my unit perfectly since it's by the manufacturer, and did not harm my fish at all. Worked well, no complaints.
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