Tetra Whisper UL Air Pump for Aquariums, Size 040

$25.97 (-20%) Chewy Price
$32.29 List Price
Promo, Spend $100, Get $30 eGift Card with code NEWYEAR
Promo, New Customers Only: Spend $49+, Get $20 eGift Card + Free Shipping with code: WELCOME

In Stock
FREE 1-3 day delivery on first-time orders over $35
Free 365-day returns

Pay in 4 interest-free payments on purchases of $30-$1,500. .

About This Item

Details

  • Designed to keep your deep-water aquarium’s oxygen levels high, ensuring your fish stay healthy and happy
  • Provides reliable functionality at an economical cost
  • Unique dome shape, integrated sound-dampening chambers, rubber feet and suspended motor actually flatten sound wave frequencies for quiet, reliable performance
  • Efficient and easy-to-use, these pumps can handle the aeration needs of aquariums from 10 to 100 gallons
  • Thick walls insulate motor noise

Instructions

Size

Learn More About Tetra From Our Team of Experts

Questions & Answers

25 Customer Questions


What does UL or Non-UL mean?

Answer by ChewyFeb 17, 2018
Underwriters Laboratories (UL) is the largest and best known independent, not-for-profit testing laboratory in the world. Based in Northwood, Illinois, UL conducts safety and quality tests on a broad range of products.

Do these air pumps use a 3/16 inside diameter air line ?

Answer by ChewyJul 09, 2019
All airline tubing is 1/8 of an inch in diameter.

Can I put it in with my red eared slider turtles

Answer by ChewyApr 23, 2018
The air pump does not go in the water at all. It sits outside the tank. You attach airline tubing to it and run it to an airstone inside the tank or an ornament. This is commonly used to provide oxygen for fish tanks, but not turtle tanks.

Dose it come with the air hoses??

Answer by ChewyAug 31, 2021
This air pump does not come with the tubing, that has to be purchased separately. It includes the air pump, a tee, and an air flow valve.

4.4
Rated 4.4 out of 5 stars
228 Ratings

113 Customer Reviews



Rated 5 out of 5 stars
By Kathlena on Dec 24, 2025

Quiet

I'm very happy with this pump. I've had it a couple of months now. I have it in my tank stand and it's very quiet and works well. The bubbler it's attached to makes

I'm very happy with this pump. I've had it a couple of months now. I have it in my tank stand and it's very quiet and works well. The bubbler it's attached to makes more noise!


Rated 1 out of 5 stars
By Lana on Sep 17, 2025

Broke a day in

The price was good however it unfortunately did not last. I plugged it in at night and by the time I woke up it no longer worked. that being said chewy was extremely

The price was good however it unfortunately did not last. I plugged it in at night and by the time I woke up it no longer worked. that being said chewy was extremely helpful in refunding my order and I really appreciated the real person chats. I honestly haven’t returned anything online before so I was a little unsure how I should proceed but they made the process very simple and personable.


Rated 5 out of 5 stars
By Jameson on Jan 9, 2026

Great pump, nice and quiet

Powerful enough for two sponge filters in my 75 gallon.

Powerful enough for two sponge filters in my 75 gallon.


Rated 5 out of 5 stars
By Rita on Sep 10, 2025

Great air pump

This is an affordable air pump. It works great and is very quiet. So glad I bought it

This is an affordable air pump. It works great and is very quiet. So glad I bought it


Rated 4 out of 5 stars
By Robert on Sep 17, 2025

Got the power

Finally found what i have been looking for. UL rated and quiet

Finally found what i have been looking for. UL rated and quiet


Rated 5 out of 5 stars
By Sarah on Nov 20, 2025

quiet

This air pump is whisper quiet.

This air pump is whisper quiet.


Rated 5 out of 5 stars
By Eve on Nov 22, 2025

Quite air pump

Works well, very quite.

Works well, very quite.


Rated 4 out of 5 stars
By Debbie on Jun 28, 2025

Works well

Powering to different aquariums with this one pump. Works very well

Powering to different aquariums with this one pump. Works very well


Rated 5 out of 5 stars
By Jacqueline on Jan 5, 2025

My favorite air pumps!

I have several pumps of this brand (10, 40, 100). I like this one for my 29 gallon; it has two ports and enough gusto to power my undergravel filter, bubble wall

I have several pumps of this brand (10, 40, 100). I like this one for my 29 gallon; it has two ports and enough gusto to power my undergravel filter, bubble wall and a sponge filter. My 40 wasn't robust enough to do that. I actually use the 40 on a 10 gallon, and 2 10's on my other 10 gallon.


Rated 3 out of 5 stars
By Frank on Oct 12, 2025

2 outlets

moderately noisey

moderately noisey