The Rena Air 300 was created with noise suppression chambers that were designed to absorb vibration from air movement. The unit has fitted rubber feet to also help stop vibration with the surface that it is seated on. These new features help to make the Rena Air 300 extremely quiet. The powerful unit was designed to maintain great airflow even at lower depths. The Air Flow Control on the Rena 300 allows the air flow level to be adjusted up and down.
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The most quiet air pump I have ever owned. I was a faithful customer of Hagen and Tetra air pumps but got fed up with the noise… then I tried Rena. My Rena Air pump has been running for 3 years without any problem. The pump is powerful enough to generate a curtain of air bubbles using long difusers. The air flow is adjustable.