ANS Check Valve (2 pieces/pack)

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Check valve to stop water from flowing in the wrong direction and accidently draining an aquarium in the event of an air pump failure.

  • Keep air flowing in the right direction and stop water from flowing out of the tank
  • Use the air check valve as a safety precaution whenever using air pumps
  • Use with aquarium air line tubing and an air pump to allow air out and keep water from flowing back
  • For air / co2 usage