Air & backup · Air pump
Tetra Whisper 40 Air Pump
Tetra rates it for aquariums up to 40 US gal; 1.3 L/min of air.
Plug-in air pump for aquariums up to 40 gallons, with one outlet, a domed case and rubber feet to keep it quiet.
Consider: One outlet: a second air stone or sponge filter needs a gang valve to split the air, or a two-outlet Whisper 60 or 100.
US version. Check what’s in the box before you buy.
Specifications that affect fit
- Manufacturer capacity
- Up to 40 US gal
- Power
- Not published
- Supply voltage
- Not published
- Dimensions
- Not published
- Air flow
- 1.3 L/min
- Air outlets
- 1
To see what it costs to run, enter the watts on its label and your daily hours in the electricity cost calculator.
Before choosing this model
- Tetra’s page doesn’t list what is in the box: plan on airline tubing, a check valve and an air stone or sponge filter unless the package lists them.
- Set the pump above the water line, or fit a check valve, so water can’t run back down the airline into it when the power goes off.
What Tetra doesn’t publish
- Tetra doesn’t publish this pump’s watts, voltage or size. Read the watts on its label before you use the electricity cost calculator, and leave room on a shelf above the tank.
Before you buy, see how to set it up.
Check it against your tank → Something not working? See the troubleshooting guide.
Build the complete pump, airline and sponge-filter system, including depth, outlet and valve checks.
Included items & upkeep
Tetra doesn’t list what’s in the box, so don’t count on any accessories being included.
Plan for the routine work
- When the air flow drops, Tetra sells a repair kit for the Whisper 20 and 40 (item 77877-00).
- Keep it dry and off the floor where a spill or a leak can reach it.
To budget for replacement media and supplies, use the first-year cost calculator. For how often and how to clean it, follow the maker’s manual.