The Hygger Adjustable Eco Air Pump w/ 2 Ports is designed to provide constant and stable airflow for your saltwater or freshwater aquarium, ensuring that the water is sufficiently oxygenated. With its adjustable flow control feature, this air pump allows you to optimize performance by fine-tuning the output to meet the specific needs of your aquarium's equipment and ornaments. It can be used with up to two devices simultaneously, making it versatile for various applications in both marine and freshwater environments.