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
330 Review(s)
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  • Sweet System By on 9/10/2017

    So I watched the video of Ryan hooking up the Tunze ATO. And it literally took me 10 minutes, taking my time, to set it up. The alarm noise is a hoot. Doubt anyone could sleep through that. Really liking it so far. Teamed it up with a Crystal ATO reservoir from Trigger. Really sweet. The wife approves. Win-win!
  • SOLID PRODUCT! By on 9/7/2017

    I thought, "Meh, I won't mind refilling my freshwater by hand daily"........ well that lasted for two weeks. Absolutely love this thing! Took some tinkering to get it right, but after a day or two I have it dialed in perfectly! Keeps salinity on point and now I can easily dose Kalkwasser. One day I noticed the monitor said "too low," but my ATO bucket was full so I turned it off and back on and everything is peachy again :) You won't regret this product!
  • Quality By on 8/27/2017

    Have had for a couple months and has worked perfectly. Tested the safety shutoff and works great. Don't have to worry about sump overflow anymore.
  • Great By on 8/27/2017

    This german made product has lot of magnets and clips and accessories to fit your need. Extremely simple to install. You need to prime the pump when it first starts. Move it around so it can suction the water. I had some cheaper alternatives in the past but this thing works exactly. Didn't have any siphoning after shutoff either.
  • Good just one issue By on 8/23/2017

    This is a great ATO I've been enjoying it the whole time. The only thing I don't like is the clip that holds the water line into the tank/sump I think that is pretty poor but all in all it's great
  • 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.