Pack of 10 one-way plastic check valves for air pumps – For standard 3/16" air hoses

General Description This pack of 10 one-way plastic check valves is designed to protect your air pump by preventing water from flowing back into the tubing in the event of a power outage or pump interruption. These accessories are essential for oxygen aerators and also facilitate the harvesting of fish and shrimp eggs by turning off the air pump. Each check valve is made of durable, high-quality plastic, ensuring a tight fit with the tubing and eliminating any potential leaks. Technical Specifications Check Valve Dimensions: 5 x 1.4 cm Air Hole Diameter: 4 mm Compatible with standard 3/16-inch air tubing Installation Connect the end of the red arrow to the air inlet, which should be connected to the tubing on the air pump side. If the water outlet inside the valve is blocked, use a toothpick to clear the water inlet. Use: These check valves prevent your pump from filling with water when it is switched off, thus ensuring optimal operation of your aquarium system. Other information: Please allow for a 1-3 cm error due to manual measurement. The colors of the items shown in the photos may vary slightly from the actual item due to different monitor calibrations.