Tetra Whisper Air Pumps for Deep Water Applications

I purchased this pump because it needs to be able to supply a lot of air through about 6ft. of tubing, the first 4ft of that being straight UP.

This pump works wonderfully! Not only does it pump enough air to run a 3in bubble disk, and a 6in bubble wand, but it does so with so much power that I actually have my splitter set to only 3/4 power!

And, as amazing as it may seem, it does all this silently! I've used the big blue rounded pumps before, and they are silent for a while, but then get unbearably loud. I've been running this pump non-stop for months, and it hasn't increased in sound level at all. It's truly amazing.

I have no problem recommending this pump to everyone, it's cheap for what it offers, and it offers a LOT!

I have used many air pumps and besides the old trusty Whisper 1000, which is no longer available, this is the best in my opinion. It will have no trouble pumping down to 4 feet of water and still have good volume of air. Unlike the Whisper 1000, the 300 is not adjustable. The current image for Amazon is that of the 150 model. The 300 has two out lets.

I have one for my 4 feet deep pond for about a year and another for my fish room for six months. The on in the fish room is powering 6 air stones at 20 inches of depth with impressive amonts of air. Both have performed well and have been reliable. I plan to buy another one to keep around as a spare.

The pump is rather on the quiet side as far as noise is concerned, but I dont recommend it for a bed room or other areas where quietness is desired. You will hear the hum.

The key to longivity for these air pump is frequent replacement of the air stones. These pumps will last much longer if you keep the back pressure to a minimum. This sounds like common sense, but a lot of people just dont bother with this and then blame the pump failure on poor quality of the pump.

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I looked long and hard for a quality pump and this is it . It is very powerfull , and wisper quiet . Has a nice heavy feel that screams quality . Good pump at a great price . I have it running 2 4" airstones and still have air to spare , I could easily run 2 more !

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I've never had an air pump that wasn't a disappointment and they're always far louder than a "whisper" quite frankly, they make an awful buzzing racket! This one isn't silent, but it's noticably quieter than any of my previous air pumps and the through-put of air is fantastic! It's powerful, it's quiet and I'm SO GLAD that I bought this pump. I'm using the AP 150 in a bottom-drilled, 60 gallon tank the tube goes straight up through the floor of the tank, into an air stone and it's blasting a column of air like a champ! Plus: the price here on Amazon is about half of what the local fish store was charging. The Whisper AP 150 is a winner!

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The pump initially worked very well, being both quiet and powerful. However, after 89 days of service it failed completely. It was pumping air into a depth of 2 feet.

Update: Contacted manufacturer. The unit is under warranty and they committed to replace it. The new pump arrived and works well.

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