Aquael Check Valve prevents backflow of water into aerator and co2 regulators.
The valve is easy-to-use can be quickly installed in fish tanks and aquariums.
Made in Poland
Usage Guidelines:
For installation, simply cut the airline tubing between the device and air pump and connect the check valve in between. The end of the check valve with the flapper (which looks like a colored or horizontal bar) should be facing the air pump. If you install the check valve backwards, no air will flow when you turn on the air pump, so just flip the check valve around.
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