Hagen Fluval Chi Aquarium Replacement Filter PadsFluval Chi Filter Pad has two sides that combine to provide thorough and effective mechanical and chemical filtration. Custom-sized, it fits perfectly inside the filter chamber to prevent debris bypass. The polyester side filters out debris and contaminants.
The carbon side filters out harmful liquid substances, colorants and odors for a healthy and clean environment. This replacement filter is exclusively designed for Fluval Chi Aquariums.