Fish Tank Air Check Valve One Way Inline Valve for Aquarium Air Lines Function and benefits One way check valve for aquarium air lines that prevents backflow from the tank into the air pump. Protects the air pump during power outages by stopping water from siphoning back toward the pump. Simple inline device that helps maintain dry, safe operation of your air pumping system. What it is and how it works Inline air line valve designed for use with standard aquarium air systems. Allows air to flow in one direction only, preventing back siphoning of tank water into the pump. Compatibility and usage Suitable for use with fish tanks and aquariums that use air pumps and tubing. Works with typical air line setups to maintain pump safety and water separation. Attributes and performance Function: oneway inline check valve for aquarium air lines. Compatibility: intended for aquarium and fish tank air systems. Size: not specified in this description; please refer to the product listing or packaging for exact dimensions. Material: not specified in this description; refer to packaging or listing for material details. Performance: designed to prevent backflow and protect the air pump from back siphoning during power interruptions. 23 practical use scenarios Power outage scenario: stops aquarium water from siphoning back into the air pump, reducing risk of pump damage. Regular operation: maintains dry air pump operation by preventing backflow if tubing is kinked or the pump stops unexpectedly. Maintenance or troubleshooting: if the valve outlet gets stuck, use a paperclip to move from input side to output side to it. Installation and tips Install the valve inline on the air tubing between the air pump and diffuser or other air devices. Ensure the orientation is correct for airflow; use the inline valve as part of your standard air line setup. If you encounter a stuck outlet inside the valve, apply the paperclip guidance from input side to output side to the outlet.