Our patented dual-sided dense-floss cartridges are replaceable and hold over 25% more activated carbon than top brands. They're designed for even carbon distribution, offering better filtration and a longer lifespan. Plus, they're super easy to replace without any mess. Size: Medium/1 Pack


Using this Aqueon cartridge is a breeze. Just open the filter compartment in your aquarium and take out the old cartridge. Then, insert the new medium-sized cartridge in its place. Make sure it's properly seated for the best filtration. As for maintenance, replace the cartridge regularly to keep the water clean. It's important to follow the recommended replacement schedule for your aquarium's size. Also, handle the cartridge with clean hands to avoid introducing any dirt or contaminants. If you notice the water quality starting to decline before the replacement time, check the cartridge for clogging and replace it if needed.