Osmolator Universal 3155 Auto Top Off - Tunze

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

Osmolator Universal 3155 Auto Top Off - Tunze

SKU: 202307
325 Review(s)
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  • Easy to install and use By on 8/12/2017

    The product is easy to instal. Has good instructions and works as advertised. I paired it with the reefkeeper lite.
  • Irritating quirk By on 8/6/2017

    Although this works well and is easy to set up, one thing I absolutely hate is that if you unplug it to do maintenance or whatnot, when you plug it back in, even if the water level is at the sensor, this will add water in for a few seconds no matter what. I even had the water quite above the appropriate level, but when I plugged this back in, the water level went above the actual sensor itself. I'll be looking for another ATO at some point
  • I only have one complaint. By on 8/1/2017

    The only thing that I don't necessarily like about this product is that if you unplug it and then plug it back in, it always dispenses water regardless of where the water level is. Beyond that its been really great. I will say Ive only had it for a month, but so far, so good.. I chose it over the Neptue ATO despite it looking kinda crappy compared to the sleek look of the Neptune ATO. (I care about form AND function, sue me.. lol )
  • Works great- The return hose clip is a bit frustrating--- By on 7/6/2017

    Works great- Magnets are strong--The return hose clip is a bit frustrating-
  • Great ATO By on 6/18/2017

    I am new to the reef tank hobby and being well versed in freshwater i did not know an ATO was nessasary for saltwater. But after dealing with evaporation i knew i needed an ATO and this Tunze Ato is great. For the time i have had it i have had no problems at all. Got a 10 gallon brute can and it goes for 10 days without problem . Highly recommend this ATO.
  • Love the topoff by Tunze !!! By on 5/30/2017

    Saves my lugging water , time and acclimation to the kids !!! Love it , thank you , sedonaiceman
  • NISE By on 5/19/2017

  • Great product and easy instalation By on 5/18/2017

    Only had this ATO a few months now. It was very easy to install. Everything seems to be working fine no issues other than one day the alarm was going off. After only a few months of running apparently the electric I had something on it and so when I wiped it off the alarm stopped. The alarm was going off because the ATO started running and increase the water level in the song so good thing it had the secondary shut off and it shut it off that set off the alarm. Great safety feature seems to be a great ATO and I'm very happy.
  • Good quality product; easy to install By on 5/9/2017

    This ATO works very nicely and is ready to use with a few simple installation steps. It comes with everything (ie. pump and tubing) so all you have to do is drop the pump into your water reservoir, set the sensor, and plug in the ATO.
  • Loving it! By on 5/8/2017

    I was recommended this by a fellow reefer and I'm glad he did. It's quiet and i haven't had any problems with it at all, yet. I would go with anything else.