ANS Check Valve 2pcs/pack

$2.50

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
not suitable for Pressurized Co2 system