![Fluval C4 Activated Carbon Power Filter - 4.9 oz Fluval C4 Activated Carbon Power Filter - 4.9 oz](https://cdn11.bigcommerce.com/s-qz13ep5fb4/images/stencil/290x290/products/156608/218455/f3bc8b49-5968-4a50-9de0-8f7bd92e5b6a__36223.1674881602.jpg?c=1)
![Fluval C4 Activated Carbon Power Filter - 4.9 oz Fluval C4 Activated Carbon Power Filter - 4.9 oz](https://cdn11.bigcommerce.com/s-qz13ep5fb4/images/stencil/290x290/products/156608/260626/14013__41320.1715228979.jpg?c=1)
Designed for use with the Fluval C4 Power Filter, C-Nodes feature a complex pore system that allows beneficial bacteria to thrive.
Designed for use with the Fluval C4 Power Filter, C-Nodes feature a complex pore system that allows beneficial bacteria to thrive.