Aqueon QuietFlow Replacement Filter Cartridge – Large (1pk)
Designed for optimal water filtration, this Aqueon QuietFlow Replacement Filter Cartridge features a dual-sided construction with dense floss and over 25% more activated carbon than leading brands. The patented design ensures even distribution of activated carbon for improved filtration performance.
To use, rinse the cartridge under cold water and install with the FRONT orientation tab facing forward.
| Feature | Detail |
|---|---|
| Filter Type | Dual-sided floss with activated carbon |
| Activated Carbon Content | Over 25% more than leading brands |
| Size | Large |
| Quantity | 1 piece |
FAQ
How do I install the filter cartridge?
Rinse the cartridge under cold water and install it with the FRONT orientation tab facing forward.
Is this cartridge compatible with all QuietFlow filters?
Yes, this Large cartridge is specifically designed for Aqueon QuietFlow filters.
How often should I replace the filter cartridge?
Replace every 3 to 4 months depending on tank size and fish population, or when performance declines.

Sue Wilson –
The filter performs well in my 20-gallon tank. Water clarity has improved noticeably after switching to this cartridge. Easy to install and the carbon seems to last longer than previous brands.
Andrea Ince –
Good filtration with minimal noise. The large size fits perfectly in my QuietFlow filter. I’ve used it for two months and the water remains clean.
Heather Parsons –
The activated carbon content is noticeably higher. I can see a difference in odor control and water quality. Installation was straightforward and the cartridge holds up well.