Air Check Valves • flow back is not allowed!

Air-return valves, or check valves ensure, your air pressure pump at (power) blackout against any back running water and thus prevents the pump being damaged and, above all, that the aquarium is leak out.

Air-return valves, or check valves ensure, your air pressure pump at (power) blackout against any back running water and thus prevents the pump being damaged and, above all, that the aquarium is... read more »
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Air Check Valves • flow back is not allowed!

Air-return valves, or check valves ensure, your air pressure pump at (power) blackout against any back running water and thus prevents the pump being damaged and, above all, that the aquarium is leak out.

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