The check valves are for common aquarium air pumps. Please DO NOT use them with CO2 system.

USAGE: Place your check valve between the air pump and aquarium water to prevent water returning down the airline.

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Product Review

The check valves are for common aquarium air pumps. Please DO NOT use them with CO2 system.

USAGE: Place your check valve between the air pump and aquarium water to prevent water returning down the airline.

Made of durable clear plastic. Package Weight: 1.34 oz / 38 g.

How to Clean:
Unscrew and open up check valve, pinch the rubber boot inside valve to make sure small slit is open. Otherwise no air to tank.

  • The check valves are for common aquarium air pumps. Please DO NOT use them with CO2 system. One way check valves are great for aquarium and fish tank.
  • Air Hole Diameter: 0.16" / 4 mm; Overall Size: 1.7" x 0.6" / 4.3 x 1.5 cm (L* D); Net Weight: 4 g.
  • Detachable design makes it easier for you to clean and repair. Unscrew to open it.
  • Protect you air pump by preventing aquarium water from back siphoning during a power outage.
  • Package Included: 10 x Air Check Valve.

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