AQUATEK Premium Brass Check Valve for Aquariums
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<b>[Product Information]</b><br>
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<li>Perfect for aquarium and fish tanks. Prevents back-siphoning to protect CO2 system from water damage and flooding during power outage</li>
<li>Brass is a highly corrosion resistant material in high humidity environment and has lasting durability and less leakage</li>
<li>Air tube tightening nut ensures secure air tube connection and continuous air-flow</li>
<li>Arrow marking showing the direction of flow - away from your regulator</li>
<li>Compatible with AQUATEK CO2-Proof tubing</li>
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