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  • Whisper 20 Aquarium Air Pump - Up to 20 gal.

Whisper 20 Aquarium Air Pump - Up to 20 gal.

6 Reviews
Item: 205960

In Stock

Available: 69

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 20 model has one outlet and is rated for aquariums up to 20 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 Size20 gal.
Height2.75 in.
Max Wattage2.5
Power Cord Length6 ft.
UL ListedNo
Warranty2 year
Length6 in.
Width3.375 in.
Internal Id
Click here to download the instruction manual from Tetra's website.

Ratings & Reviews

6 reviews

Great pump


This is my 3rd pump, the first one is still running after 10 years or more of use.

disappointed.. misleading picture


I bought this put becuase in the past it was a TWO OUTLET pump.. I was very dis satisfied to discover it only has ONE outlet and air output is very poor. I now have to replace THIS pump :(

Tetra Whisper Air Pump


I've had mine for a year now & have NEVER had any noise problems. I will soon be setting up another aquarium & will be buying the same brand of air pump



Extremely quiet and stable. Great pump!!!



Works great doesn't make any noticeable or annoying noises and better looking than most pumps.

air pump


makes almost no noise just keep the cord from the bottem of it