Enhance the cleanliness of your aquarium with the Tetra Whisper Aquariums Power Filter PF-20. This power filter is designed to filter up to 105 gallons of water per hour, making it perfect for fish tanks between 10-20 gallons in size. Its external filter location allows for easy maintenance, while the brand's reliability ensures that your aquarium will remain in top condition. Suitable for all water types, this power filter is an essential item for any fish tank owner looking to maintain their aquatic environment.