Replacement filter cartridges
Aqueon replacement filter cartridges are double-sided and feature a dense yarn with over 25% more activated carbon than leading brands. These patented cartridges were designed to ensure even distribution of the activated carbon. To use, simply rinse under cold water and easily install using the "FRONT" orientation tab. Aqueon replacement cartridges are available in: X-Small, Small, Medium, and Large. Replace cartridges every 4 weeks for optimal performance.