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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


  • Can't wait to get my hands on this! By Nelson on 11/28/2014

    just order this on black friday special!! can't wait to have it in my tank up and running!
  • good By Rodney on 11/25/2014

    works like it sould saves time having to top off tank evereday
  • Great Product By Harris on 11/23/2014

    I've had this for about a month now. It was really easy to set up and has saved me time by not having to top off my sump by hand. All around a great addition to the tank!
  • awesome By dolpator on 11/23/2014

    This top off system is awesome. I have never had one issue with it and it never misses a beat. I used the JBJ auto top off on the past but like the fail safe options. It has been very dependable. And would recommend it to any one. Great product
  • Works and easy to setup. By Mario on 11/19/2014

    Instructions were easy to follow. One call to Tunze was answered promptly when I had a question about whether all magnets were waterproof.
  • Never Fails By FirstContact on 11/10/2014

    This is a great piece of gear. It has never failed on me. Once a year or six months or so, I'll clean the optical sensor from salt. It's in a 100g Rubbermaid stock tank. The pump is in a 32g Brute, and the top off goes through my kalk reactor first.
  • Perfect Tool By Steven on 11/6/2014

    Really satisfied with my purchased. Works exactly how it should so I don't have to worry about it.
  • So Far So Good! By Randy on 10/23/2014

    This seems to be working like a Charm. However I did have one issue with it right away, for some reason the pump wasn't working when I first plugged it in. I unplugged it for several hours and came back to it to see what the problem was and when I plugged it back in everything worked perfectly. It has kept my tank at a perfect level so far. I have it hooked up with a 5gal tank reservoir and it has given me less time worrying about water level and more time loving my tank!
  • Amazing Product and never fail By Michael on 10/9/2014

    I love this ATO!!! I don't ever have to add more water to my sump day in and day out. I have a 10 gal sitting inside tank stand and it lasts about 1 1/2 weeks before having to fill it again. There has been a few power surges since installing it. It has never failed to come back on or sound alarm. Thank You Tunze and Thank You BRS for carrying this item.
  • Stability By Valerie on 10/5/2014

    This unit has not failed once. I use Kalkwasser in my auto top water and the pump hasn't failed yet. The pump is a little bit loud but the BRS staff told me to pull the airline tubing out a little bit and it made it much quieter.

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