The Top Fin SilenStream Power Filter PF 30 is a high-quality aquarium fish filter designed for both fresh and saltwater tanks. With a flow rate of 150 gallons per hour and a tank capacity of 20-30 gallons, this internal power filter effectively cleans and circulates water in your aquarium. The Top Fin brand ensures reliability and efficiency, making it an ideal choice for maintaining a clean and healthy environment for your fish.