German product. By waterflyer on 4/26/2014
waterflyer would recommend this product to a friend
Need I say more. This is made in Germany. Extremely high quality product. I actually have mine 20 feet away from my tank and it pumps it with no problem. Horizontally and with only a 4 ft vertical height above the actual pump. Great system, very reliable!
Must Have By Jason on 4/23/2014
Jason would recommend this product to a friend
I can't believe I ever went without this! It flat works, no questions asked. Easy setup, no brained operation. Well worth it.
Set it and forget it By Arrick on 4/23/2014
Arrick would recommend this product to a friend
This product works exactly as described is easy to set up and will easily be the most trusted piece of equipment you will have in your system.
Don't skip out on this! By Michael on 4/22/2014
Michael would recommend this product to a friend
After having a 180g reef leak from a poor install and destroy 1100sf of my house I have learned that there are certain items that you do not skimp on to save money and a good return pump and ATO are one of them.
Not only will you have the piece of mind that your ATO will not flood and ruin your floors but your reef will be happier and your skimmer will work like never before!
This ATO is amazing and is well worth the price.
So far, so good By Anneke on 4/17/2014
Anneke would recommend this product to a friend
This was easy to set up and started working immediately. There was no break-in period.
Very good product By KEITH on 4/15/2014
KEITH would recommend this product to a friend
Tunze 3155 works as described shut off valves are the best
Optic sensor failed By Me on 4/15/2014
Me would recommend this product to a friend
I just came home, and the water level was 2 inches low.
Optic sensor out of the water but nothing happens.
Worked fine for one year thats all.
a must By Nick on 4/13/2014
Nick would recommend this product to a friend
It works, its everything it is supposed to be! I love the dual level sensors and the pump is near silent. I think everyone understands they need an ATO. This is the best way to go.
Keep Tank Stable By Mitchel on 4/11/2014
Mitchel would recommend this product to a friend
Another great product from a great manufacturer that has been around forever. This ATO helps keep your salinity in check which helps for a better overall stable system. What else can you ask for out of a product.
Simply works perfectly By Eldog on 4/7/2014
Eldog would recommend this product to a friend
Operating top off for 230 gallon reef tank with 75 gallon sump for three years now. It's truly a set it and forget it system, maintains perfect top off levels for optimum in-sump skimmer operation.
Fool Proof By Ryan on 4/5/2014
Ryan would recommend this product to a friend
I'm a rookie when it comes to saltwater reefing, this unit is by far the best purchase I have made. Easy to use and definetly plug & play
The Best By Matt G on 4/1/2014
Matt G would recommend this product to a friend
Easy to set up works the way it is supposed to work. I am very happy with it so far.