AQUATEK Premium Brass Check Valve for Planted Aquariums
- Perfect for aquarium and fish tanks. Prevents back-siphoning to protect CO2 system from water damage and flooding during power outage. NOTE: Designed for CO2 system only, not for air pump, requires 25 psi minimum working pressure.
- Brass is a highly corrosion resistant material in high humidity environment and has lasting durability and less leakage.
- Air tube tightening nut ensures secure air tube connection and continuous air-flow..
- Arrow marking showing the direction of flow - away from your regulator.
- Perfect for pressurized CO2 system and planted aquarium tanks..