National Geographic National Geographic Power Filter Polishing Filter for Aquarium, Pack of 6 Filter

The National Geographic Power Filter Polishing Filter for Aquarium is an external filter cartridge designed for aquariums with a tank capacity of 20, 30, or 50 US gallons. Made by National Geographic, this filter is suitable for all water types and is a pack of 6 cartridges. The cartridges are designed to effectively filter and polish the water in your aquarium, providing a clean and healthy environment for your fish. Made in China, this filter is a reliable and efficient option for maintaining the water quality in your aquarium.