Keep your aquarium clean and clear with these Aqueon replacement filter cartridges. Designed to fit Quiet Flow 10 Medium filters, these cartridges are perfect for tanks up to 20 gallons and work for all types of water. Made in the United States, you can trust the quality of these cartridges to keep your fish happy and healthy. Each pack includes two filter cartridges, ensuring that you have a spare when it's time to change the filter. With easy installation and excellent performance, these replacement cartridges are a must-have for any aquarium owner.