Aqueon Replacement Filter Cartridge 9 pack

Patented dual-sided dense-floss cartridges contain over 25% more activated carbon than the leading brands. These unique cartridges were designed to ensure even distribution of carbon throughout for more thorough filtration and longer cartridge life. Features: Fits Aqueon E Internal 10 gallon and MiniBow filters Ready-to-use cartridge contains high quality activated carbon that keeps water clean Installs in seconds: align cartridge bottom key slot for an accurate fit inside the filter For optimal performance, change approximately every 4 to 6 weeks Do not clean Bioholster when replacing the cartridge as it contains beneficial biological bacteria Rinse before use Item Details: Size: Small Dimensions: 6.2" x 2" x 6.2" Size: Medium Dimensions: 4.9" x 2" x 5.7" Fits Aqueon QuietFlow Filter: LED PRO Size 10 and E Internal 20 gallon Size: Large Dimensions: 5.7" x 2" x 8.5" Fits Aqueon QuietFlow Filter: LED PRO Size 20 and up and E Internal 40 gallon