💧 Elevate your tank’s clarity with precision filtration that fits like a glove!
The Fluval U3 Underwater Filter Poly/Carbon cartridge is a lightweight, custom-designed replacement filter that delivers effective chemical filtration across freshwater, marine, and reptile environments. Its compact dimensions and easy-replace design ensure hassle-free maintenance and superior water quality.
| Item Weight | 0.03 Kilograms |
| Item Dimensions L x W x Thickness | 2.36"L x 0.59"W x 3.38"Th |
| Material | Plastic |
J**2
Fish
Perfect size I couldn’t find it in the stores, Of course Amazon had it
P**R
Works well
For my 30 gallon tank this filter and accessories is great.Works well
A**A
Good quality flow
Water flow is great again. Thanks for the new filter. I tried cleaning the old filter several times but still doesn't work good.
J**F
Best Aquarium Filter System
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.
A**R
Good media for the filter
Replacement filter for the fluval aquarium pump. Works great.
A**.
Great product and price
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.
M**N
Fits well
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.
C**K
Turtle tank filters
Replace these filters for my two tanks.
Trustpilot
1 day ago
1 month ago
