The Tetra Whisper EX20 Power Filter is suitable for aquariums up to 20 gallons. With a flow rate of 110 gallons per hour, this external filter is designed for all water types. It is a reliable choice from the Tetra brand for maintaining a clean and healthy aquatic environment in your tank. These items dont appear to be the most quality plastic on the planet. Who ever you purchase from. Just saying.
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