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- AQUARIUM
- Aquarium Filters
- Aquarium Internal Filters
- Whisper In-Tank Power Filter
Tetra Whisper In-Tank Power Filter
Other Tetra Products
For the ultimate in convenience and quiet, choose a Whisper In-Tank Filter. These filters mount on the inside of the aquarium, rather than hanging from the outside -- making it possible to place the tank flush against a wall. In-Tank Filters are unusually quiet, since the motor is under the water. Offering the same quality and performance as an external filter, the Whisper In-Tank Filter will function in as little as 2 inches of water -- making it ideal for turtle tanks, or for creating a waterfall inside the tank.
The Whisper In-Tank filter features adjusts easily to high or low water levels with mounting suction cups and/or bracket. Each filter comes with one pre-assembled Whisper Bio-Bag filter cartridge.
In-Tank 10i - Up to 10 Gal, 90 GPH. Uses Medium Bio-Bag
In-Tank 20i - 10 to 20 Gal, 125 GPH. Uses Large Bio-Bag
In-Tank 40i - 20 to 40 Gal, 170 GPH. Uses Large Bio-Bag
All filters include a Full 2 year warranty
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Ratings & Reviews: Submit a Review
TETRA 40I FILTER
By KELLY from GLEN BURNIE, MD
On June 24, 2010:
THE TETRA 40I IS THE BEST FILTER I EVER HAD . ITS VERY EASY TO CHANGE.
Tetra pf-40i filter is awesome
By Stacy from Hammond, IN
On April 20, 2010:
We bought the pf-40i & a pf-20i & for our 55 gallon tank. They are working great & are so... quiet. They are also great because they take up no space on the outside of tank.
Good, inexpensive filter
By Jan from Fayetteville, OH
On October 14, 2009:
I purchased this in tank filter after my regular filter leaked on my hardwood floor twice. Very quiet and seems to do a good job. Excellent filter for the price.
Good
By Mike from Poseyville, IN
On June 20, 2008:
This is a great filter we use them on all our turtle tanks!
One great filter
By Eric from Quincy, IL
On November 23, 2007:
I have two Tetra Whisper 40i submersable filters and I love them. I have a 55gln aquarium with lush plant life and many beautiful fish and thanks to the Whisper 40i I am gettig better results in this aquarium than I have with any other filter product.
I definately recomend this submersable filter for anyone that wants great results for their aquarium and for a long life for their loveable fish buddies.
You have to have one...or two. Heck I'm ordering another one for my 29gln aquarium today.
:)
Excellent filtration!!
By Mary from Sandy Creek, NY
On July 27, 2007:
I purchased In-tank filter 101 and 401!
They prove excellent filtration for two tanks, one a 10 gallon and one 45 gallon which each house a turtle. Turtles put out a lot of waste and these filters work the BEST I have ever used. The ease in which I can change the filters is wonderful!
Incredibly reliable
By Christian Traylor from Columbia, SC
On May 6, 2007:
I left my bio-wheel filter in South Carolina when I came home for the summer, and needed a cheap filter. I bought this one, and discovered that it is just as effective as my biowheel. There is plenty of space for beneficial bacteria to grow, and it clears the water out BETTER than my Penguin filter. I was very suprised. I would recommend this to anyone. When I get my other filter back, I'm going to use both of them to keep the tank clean and extra healthy. An amazing and cheap filter - great for all fish.
Great buy
By Marco from La Puente, CA
On April 16, 2007:
I love this thing all I had to do is open the box put the cartridge in then plug it in. It was that easy it cleans great and quietly too. This filter is great for the money :)
