Air Tube - Check Valve

The Underwater Treasures Check Valve is designed to protect your aquarium’s air pump from water damage by preventing back-siphoning. This safeguard helps extend the life of your equipment and maintains a healthier environment for your fish. In the event of a power outage or air pump failure, the valve stops water from flowing back through the airline. Installation is simple—just connect it in-line between your air pump and aquarium tubing.