Note: Please ensure the end is labeled 'OUT' near the air stone. 2. Each outlet requires a stop valve; for twoheaded configurations, two stop valves are needed, and so on. 3. Water backflow can damage the pump head or other equipment. 4. After adding the stop valve, the unit can be placed above or below the water line to reduce the risk of water backflow when the valve is shut off. Key benefits Provides multiple outlets with individual flow control for precise air distribution. Stop valves help prevent backflow, protecting the pump and other connected equipment. Flexible configuration supports various outlet setups with clear labeling guidance. Simple installation and straightforward operation. Specifications and compatibility Multioutlet design with dedicated stop valves for each outlet. For twoheaded configurations, two stop valves are required. Includes labeling guidance to position the outlet end as 'OUT' near the air stone. Use scenarios Aquarium aeration: run multiple air lines from a single source to evenly distribute air across the tank. Hydroponics systems: manage airflow to several nutrient reservoirs with independent control. Small decorative water features: connect multiple outlets to control aeration points without risking backflow. Maintenance and safety Ensure valves are properly closed when disconnecting hoses to avoid unintended backflow. Regularly verify labeling and connections to maintain correct flow direction. OUT