🐟 Dive into clarity with Aqueon—your fish will thank you! Rinse, install, and enjoy—it's that simple! Compatible with a variety of Aqueon filters for ultimate flexibility. Experience 25% more activated carbon for crystal-clear water. Change every 4 weeks for peak filtration efficiency. Developed by passionate hobbyists for the health of your aquatic friends. Versatile fit 25% more carbon Easy installation The Aqueon Aquarium Fish Tank Replacement Filter Cartridges come in a convenient 3-pack, featuring dual-sided design with 25% more activated carbon than competitors. They ensure even carbon distribution, are easy to install, and fit a variety of Aqueon filter sizes. Designed for optimal performance, these cartridges should be replaced approximately every 4 weeks, making them a reliable choice for maintaining a healthy aquatic environment.