Non-Return Valves protect your air pump and equipment by preventing aquarium water from back siphoning during a power outage. Place these Non-Return Valves in your airline tubing between your air pump/equipment and aquarium water to prevent water from returning down the airline.
1. Prevent water backflow from damaging front-end air pumps or other production equipment.
2. Non-return air pump safety valve, an essential accessory of the pump.
3. Greatly protect the oxygenation pump from damage by water retrograde into the pump.
4. Prevent the risk of water returning when the pump is shut down and sped working.
5. Suitable for aquarium, fish tank, fishing tackle shop, etc.
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