Fluval U3 Underwater Filter Poly/Carbon 2pk
The Fluval Poly/Carbon Cartridge has two sides that work together to provide thorough and 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, colourants and odors. Suitable for freshwater, marine or reptile environments. Includes 2 Poly/Carbon cartridges.
| Component | Function |
|---|---|
| Polyester Filter Pad | Removes fine debris and particulate contaminants |
| Carbon Layer | Removes harmful chemicals, colourants, and odors |
FAQ
How often should I replace the Poly/Carbon cartridges?
Replace the cartridges every 4 to 6 weeks depending on tank conditions and fish population.
Can I use these cartridges in a marine aquarium?
Yes, the Poly/Carbon cartridges are suitable for marine, freshwater, and reptile environments.
Are the cartridges compatible with the Fluval U3 filter only?
Please contact customer service for compatibility details with other models.
Una Baker –
The filter performs well in my 55-gallon freshwater tank. The carbon side effectively reduces odors and keeps the water clear. I’ve used it for three months and haven’t had to replace it yet. Easy to install and fits perfectly in the U3 filter.
Brandon Hunter –
Good filtration results after a few weeks. The polyester side catches small particles well, and the carbon helps with the smell. I noticed a slight improvement in water clarity after two weeks of use.
Karen Wright –
I use this in a marine setup with shrimp and snails. The carbon layer helps reduce the yellow tint in the water. The filter is durable and the two-pack is sufficient for a medium-sized tank.