The Fluval Chi Filter Media replacement combo pack includes 3 Chi Filter Pads and 1 Chi Foam Pad, exclusively designed for Fluval Chi aquarium filters, 19 Litre (5 U.S. gal.) and 25 Litre (6.6 U.S. gal.) sizes.

The 2-sided polyester/carbon Filter Pads provide thorough and effective mechanical and chemical filtration and are custom-sized to fit perfectly in the filter chamber to prevent debris bypass.
The polyester side filters out debris and contaminants, while the carbon side filters out harmful liquid substances, colorants and odors.

The Foam Pad captures excess particles and debris, plus it supports the growth of nitrifying bacteria for a healthy and clean environment.,