Aqueon Replacement Filter Cartridges, Large – 3 pk
Designed with a dual-sided structure, these large filter cartridges contain over 25% more activated carbon than leading competitors. The enhanced carbon distribution ensures consistent and effective filtration throughout the filter media.
To install, rinse the cartridge with cold water before use. Align the front tab for a secure and quick fit into the filter housing.
| Size | Filter Cartridge Type |
|---|---|
| X-Small | Small filter media |
| Small | Standard filter media |
| Medium | Medium-sized filter media |
| Large | Large filter media (this pack includes 3 Large cartridges) |
FAQ
How do I install the large filter cartridge?
Rinse the cartridge with cold water before use. Align the front tab with the filter housing for a secure and quick fit.
Are these cartridges compatible with all Aqueon filter models?
These cartridges are designed for use with Aqueon filter systems. Compatibility may vary by model; please verify with your specific filter model.
How long do these cartridges last before needing replacement?
Lifespan depends on tank size, fish population, and water conditions. Generally, replacement is recommended every 3 to 6 months for optimal performance.

Amy Underwood –
The large filter cartridge works well in my 55-gallon tank. The carbon content is noticeable in water clarity after a few weeks. Easy to install and fits securely. I’ve used it for over two months and still see good filtration.
Sam Lyman –
I bought three cartridges for my setup. The large size fits perfectly and the carbon seems to last longer than previous brands. Water quality has improved noticeably after switching to these.
Jennifer Buckland –
Great value for the performance. The dual-sided design helps distribute carbon evenly. I rinsed it before use and it fits smoothly into my filter. My tank has been clearer since I started using these.