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Whisper 40 Aquarium Air Pump - Up to 40 gal.

4 Reviews

Out of Stock


The new shape of silence. The Whisper Air patented dome shape and sound dampening chambers minimize turbulence and produce a smooth quiet stream of air. Wide footprint, rubber feet and suspended pump motor eliminate sound producing vibrations. Thick walls insulate motor noise. Powerful diaphragms provide ample airflow for deep water applications.

The versatile pump can be used for several applications including powering undergravel and sponge filters, airstones, and air-driven ornaments.

The Whisper 40 model has one outlet and is rated for aquariums up to 40 gallons.

Using an air pump adds dissolved oxygen to your water, improving the overall health of your aquarium. For more information on aquarium aeration, please see our article on Air Pumps.


Max Tank Size40 gal.
Height2.75 in.
Max Wattage2.9
Power Cord Length6 ft.
UL ListedNo
Warranty2 year
Length6 in.
Width3.5 in
Internal Id


Click here to download the instruction manual from Tetra's website.

Ratings & Reviews

4 reviews

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Whisper 40 Aquarium Air Pump


Had it set pin a 10 gallon tank that supplies air to 2 box filters and 1 6" air stone. The pump was too weak to suppy enough air for the three items.



Awesome lots of air on 4 large stones

Whisper 40 Aquarium Air Pump


This is so quiet that I have to check to see if it is still running. Nothing like the one I had that rattled and made noise all the time. Would buy it again when I need a new one.

tetra Whisper Air Pump 40


Much quieter than the 100! I would rather have 2 of these. They have a lot of power. It works for both my 20 and 39 gal tanks