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Tunze Osmolator Universal 3155 Auto Top Off

Tunze Osmolator Universal 3155 Auto Top Off
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  • Tunze Osmolator Universal 3155 Auto Top Off
  • Tunze Osmolator 3155

Tunze Osmolator Universal 3155 Auto Top Off

SKU: 202307
242 Review(s)

Out of Stock

  • great customer service By dozer42 on 6/20/2015

    My ato quit working. Contacted tunze and they had me send it in. Long story short my pump went bad and burned out the controller unit. I had to buy a new pump but even though my controller unit was out of warranty they replaced it for free.
  • Must Have By RICHARD on 6/16/2015

    This works great and the two different sensors are awesome. I even plumbed this to feed my two foot tall DIY kalk reactor and it feeds the reactor with no issues.
  • Get it. By Michael on 6/12/2015

    This is my first and probably the will be the last ATO system I will need to buy...unless I set up another reef tank of course. Forget about the "hefty" price tag, your tank is certainly worth it.
  • Excellent product! By Joseph on 6/1/2015

    I have this setup currently for my system. While the instructions are not as straightforward as I'd like, there are plenty of videos online to learn how to set everything up. There are several ways to use this product which are part of what makes it good but also part of why the instructions are a little confusing. Nevertheless, it works great and worth the money IMO. Get it.

  • Fantastic By Plomanto on 5/28/2015

    This thing is awesome . Very easy to install and works exactly as described. I highly recommend this product for any one looking for an ATO
  • over 5 years and it is the best! By mathdoc on 5/22/2015

    I have had one of these as my overflow system along with a 20 gallon food grade trash can filled with water plus some Kalk for over 5 years. When I first purchased it, I remember reading it might not last with kalkwasser. Well, 5 years and 1000s of gallons later, the unit is still functioning perfectly. When it dies someday, I will not think twice about purchasing any other brand. Don't think twice, this is the best top of on the market!
  • Mixed feelings By Wolfentank on 5/16/2015

    I've been using one of these for about 8 months or so, and I can't say that I love it or hate it. It's possible that my unit may have a defect as it will occasionally over fill and trigger the emergency alarm. At the same time I had a cheap $10 float switch/dosing pump set up on a nano tank that was flawless. Overall, this is a pretty good ATO and I do like the alarms. I wish it had some kind of switch to turn it off/on for when I'm doing water changes though.
  • Worth every dime! By Gerry on 5/14/2015

    The $200 dollar price tag is a little hard to swallow... But the peace of mind is completely worth it. Even though the instructions were a little hard to decipher because their English was badly translated(at least for me it was) the set up was simple and quick.
    I did have a defect with the laser eye but BRS was super quick on getting squared away.
  • Wish everything was this easy. By jon on 4/27/2015

    drop it in tank. connect a few wires. fill container. set optical level. done...
    only issue i had i had to call to figure out where the sensor picked up its not the tip its the beginning of the cone. has multiple sensor options and fail safes. highly recommend.

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