Rated 4.8 out of 5 by 28
Rated 5 out of 5 by sportsmanship AP-4 Great pump!
I have the AP-4 model. This pump is quite quiet. Good power too!
April 17, 2016
Rated 5 out of 5 by Cichlidman63 Excellent air pump.
I purchased the Danner AP4 six months ago. Overall I would say this is an excellent air pump. Its features vs price makes it an excellent value. On most of my tanks I have another brand that is blue and black and has 4 legs. Looks like a walking ashtray. The Danner beats it hands down in noise looks and above all performance. As the other ones fade. They will be replaced by Danners.
January 31, 2016
Rated 5 out of 5 by Gardenza Great so far
This air pump is powerful and runs two outlets quite efficiently. Once the airline tubing is hooked up it is absolutely silent in my aquarium 75 gallon stand cabinet(with doors).. A few weeks running two large air stones and have had no issues at all. No disappointment with it or Dr.s F and S
November 7, 2015
Rated 5 out of 5 by AquaNut2015 Quiet
I've only had this a few weeks, but I couldn't be happier. Super silent and very powerful. I ordered a splitter to relieve some of the air from the line. I'm only running one airstone in a 20 gallon tank. It would work fine without a splitter, but I don't like a ton of bubbles. Can't go wrong with this one! I'm glad I read other reviews on this and decided to purchase it.
November 5, 2015