Description
Check valves protect air pumps from aquarium water back-siphoning damage during power failures. To use, cut airline tubing between air pump outlet and aquarium. Attach airline to each end of valve. Narrow end should face the aquarium. Valve measures 2 inches long.
FEATURES:
Protect air pumps from aquarium water back-siphoning damage during power failures
Attach airline to each end of valve (pointed end of internal flap away from pump direction)
Valve measures 2 inches long
Easy to use
Durable and long lasting
