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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
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$209.99
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  • eliminated manual topoff By Greg on 3/23/2015

    I like it So far no issues. The reviews were good. Instead or trying something I am usually using others experiences to save me the anguish of poor decisions
  • A necessity By JonnyReefer on 3/19/2015

    It's so nice not having to get 3 half-gallon cups per day and bend down to refill my sump. And no more micro-bubbles! Although the little nut&bolt that holds the output line to the tank attachment was a PITA to get on, it was a breeze to set up.
  • ato By luis figueroa on 3/19/2015

    bought my first ato about two weeks ago and I must say its been the best purchase ive ever made in this hobby. keeps water level and stability in parameters. so far so good.
  • tunze 3155 By Derek on 3/18/2015

    I love this thing. no more worries when im not around for a few days. works excellent just as expected from tunze. easy to set up
  • Easy to use and no need to worry about your tank By Hamad on 2/28/2015

    It saved my time and i do not need to manualy add water. i used it for 200 gallon tank. Thanks BRS
  • Super Product By RDM on 2/20/2015

    This was easy to setup and get working. I never realized how much I hated having to manually top off my water until I put this in my system. Now I just check my water levels and the fresh water supply and this takes care of adding water as and when it's needed.
  • EASY and works great By Jeffrey on 2/15/2015

    So far so good ! Have this set up on roughneck bin I'm using to cure my dry rock in. Works perfect and secondary safety offers great piece of mind. In the room one day when pump came on.. manually lifted float and audible alarm sounded and pump shut off. Very comforting to have a piece of equipment like this that is looking out for me ! If you are on the fence, JUST GET IT, you won't be disappointed.
  • fantastic ATO By Hawrasser on 2/11/2015

    this ATO is great. keeps the water level in my sump constant. the only thing i would change is to make the amount of travel on the floating switch a little bit larger. if i turn on my protein skimmer it will sound the alarm but my skimmer is also huge haha
  • Hoping to get it working By Andrew on 1/16/2015

    I have had this on an AIO tank (40 gallon) worked great the first week, now it keeps overfilling my tank( alarm going off) in the process of troubleshooting it with Tunze, hope i can get it to work correctly. I wish it worked right out of the box, but based on reviews the Tunze auto top off is suppose to be the best. I have owned other Tunze products before with no problems. Not bashing the auto top off but its not working out of the box. But Tunze customer service is great at helping.
  • Great ATO! Never missed the target! By Alec on 1/15/2015

    I don't need to add anymore to those 200+ reviews but I put mine on a timer that only turned on once a day for 10 mins. That way it's not pumping all day long and will never over fill.

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