Extremely quiet and powerful aquarium air pumpMaintains optimum airflow even in deep aquariumsModels 200-400 feature adjustable airflow ratePrecisely engineered Rena air pumps minimize noise and vibrations for extremely quiet operation. Their curved casing and expansion chambers help absorb vibrations to significantly reduce noise output compared to standard air pumps. Careful fitting of the base further ensures soundproofing. Plus, they're powerful enough to maintain optimum flow rates under the greatest of depths, even with a clogged airstone. Rena's sleek, European, contoured design is available in a variety of sizes to suit most aquariums.Model #Aquarium SizeMaximum VolumeOutletsAdjustable Control501-10 gallons50 liters/hr1NA10010-20 gallons120 liters/hr1NA20020-30 gallons160 liters/hr1130030-80 gallons200 liters/hr1140065-160 gallons2 x 200 liters/hr22Features:Noise Suppression Chambers - Absorb vibrations caused by valve and air movement.Vibration Reduction Design - Traps vibrations caused by motor operation.Unique Precision Assembly - Base and housing are securely fitted to contain noise within the housing.Powerful Pump Technology - Produces maximum air output even in deep aquariums.Control Knob on Rena Air 200, 300, 400 - Adjustable airflow rate for custom control.Two Air Hose Outlets on the Rena 400 - Each controlled separately by its own air control knob.Please click on "More Information" for operating instructions and maintenance.Tips from our Techs RENA air pumps are ideal for creating a bubble wall in tall aquariums. They're strong enough to easily push air into deep aquariums, helping release toxic gasses and allowing oxygen to enter.

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