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. 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. Aqueon products offers a wide range of items so that you can build and maintain a healthy aquatic environment. All the essentials from fish tanks, filters, lighting, food, care, and other supplies that your pet fish needs. We make it easy for you to get your first aquarium and to grow in the hobby as you become more of a fish expert with every step you take and every new thing you learn. For those seasoned hobbyists, we are committed to aquarium product innovation so that we continue to offer products that get you excited. With the Aqueon brand, it's all about the fish.

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
Fits Aqueon QuietFlow Filter: LED PRO Power Filter Size 10, Power Filter Size 10 and E Internal Power Filter Size 20
Use Instructions: Remove used cartridge from Bio-Holster(TM) grid by pushing down gently on the holster and pulling the tab on the cartridge upwards. Discard used cartridge. Bio-Holster (TM) grid should not be removed or cleaned, as it contains beneficial bacteria. Rinse nw cartridge under cold water ti remove carbon dust. Insert new cartridge into Bio-Holster(TM) gid by aligning the key slot in the cartridge with ley slot on the biological grid.