This aqua check valve protects your air pump by preventing water from flowing back through the pipes in the event of a power outage or pump pause. A must have accessory for your oxygen aerator.

Shutting off the air pump will make it easier for you to harvest fish and shrimp eggs. Our fish tank check valve stops the pump from filling up with water when it is turned off. You will get 20 one way check valves. Enough quantity is perfect for fish and shrimp farmers.
The Oxygen Pump Check Valve is made of high quality durable plastic that ensures a tight fit to the hose, eliminating any potential leaks. Its exceptional durability allows for long-term use without any damaging noise, creating a soothing and tranquil environment for you and your aquatic companions.
The inside of the check valve has a red arrow with an input at the end of the arrow that connects to the hose on the side of the air pump. If the outlet inside the aquarium air valve is stuck, poke it with a toothpick from the input side to the output side.