Aqueon Replacement Filter Cartridges are dual-sided, featuring dense-floss with over 25% more activated carbon than the leading brands. These patented cartridges were designed to ensure even distribution of activated carbon.

Features

• Cartridge contains high quality activated carbon that keeps water clean
• Installs in seconds: rinse first and align cartridge bottom key slot for an accurate fit inside the Filter
• Easy installation using the "FRONT" orientation tab
• For optimal performance, change approximately every 4 weeks