Tunze Osmolator Nano 3152 Auto Top Off ATO

$99.37  

5% Rewards:

497 $4.97 off a Future Purchase

This item is in stock in our East and West Coast warehouses

TZ4114

SHIPS FREE!

Tunze The Tunze Nano Osmolator 3152 is an economical aquarium top off with more features than are typically found on competing units.

The Tunze Nano Osmolator is great for nano aquariums and tanks up to 55 gallons. Featuring a safe low voltage construction, it includes a metering pump, 3 meters of tubing, magnet holder for aquariums up to 10 mm (0.39") thick, power supply a float switch, protective shield and control unit.

For safety purposes, the Osmolator 3152 includes a processor-based anti-overfill system which turns the pump off after five minutes of filling if the level has still not been reached (equal to a pumping of approximately 0.75 gallons).

The Tunze Nano Osmolator 3152 was built in Germany and includes a 2-year manufacturer warranty that excludes the float switch—which features a 6-month manufacturer warranty and is user replaceable.

For larger aquariums, check out the Tunze Osmolator Universal 3155. If you need a container to hold your top off water, the Tunze Osmolator Storage Container 5002.25 is an ideal choice.






Manufacturer Info

Tunze
For forty-five years the name TUNZE® has been synonymous with aquariums. Many products and components which we have developed in the course of time are now standard features of aquarium technology today. This confidence in TUNZE is no coincidence. The company has remained true to its philosophy right from the beginning, researching water biotopes all over the world to develop components which enable natural water conditions in the closed environment of an aquarium. In the implementation of know-how, effectiveness and efficiency, TUNZE® takes the lead in environmental compatibility. Their motto is: quality and reliability. These values are upheld with well thought-out and precise tool making by highly qualified experts. The brand names of TUNZE® and Turbelle® meet the expectations of the seal of quality; Made in Germany. Many of the products shown in this catalogue are protected by national and international patents.

Ask a Question Earn 25 Points when you ask or answer a question
Sort By :
 
9 Questions
Displaying questions 1-9
 
 
Write Your Review Earn 25 Points when you write a review
Sort by:
 

Overall, others give this:

  • 4.7

35 Reviewers (94%) would recommend this

Overall Rating:

download image
5  Star
 28
4  Star
 4
3  Star
 2
2  Star
 0
1  Star
 1
 
4
4.0
All works great, but the pump fails sometimes.
reviewerbadge
PROS
The water sensor.
CONS
The pump
REVIEW
The Ato is very small, which is great and the water sensor works all the time. The only problem is the pump. If the Ato is not replacing water constant , the pump fails sometimes .
  • 1
Was this review helpful: Yes(0)No(0)
 
 
 
5
5.0
Tunze Osmolator Nano ATO
reviewerbadge
PROS
quiet, simple design.
REVIEW
So far so good. Quiet and seemingly reliable after a few weeks. Easy to install.
  • 1
Was this review helpful: Yes(0)No(0)
 
 
 
5
5.0
Works perfectly
reviewerbadge
PROS
Easy set up, accurate reliable.
CONS
None
REVIEW
I've had this running on my tank for about 2 months now. It's simply works. 100% reliable, quiet, accurate. Set up takes less than 5 minutes. One of my favorite pieces of equipment.
  • 1
Was this review helpful: Yes(0)No(0)
 
 
 
5
5.0
Just what I needed
reviewerbadge
PROS
Stability stability stability
CONS
The prongs on the snail guard are weak and break easily, though tunze replaced this for me be mindful of it's weak point.
REVIEW
I have a small 20 gallon nano and was dealing with salinity swings from 1.024 to 1.026, I have it staying at a solid 1.025 now and owe my tanks to this little ATO. I'm glad I went with this unit over the more expensive ones that were on my list. My decision to go this with the nano is because there ...Read More
  • 1
Was this review helpful: Yes(0)No(0)
 
 
 
5
5.0
It's so cute!!
reviewerbadge
REVIEW
It doesn't look that impressive as far as pumps go because it's so little but that's what makes it perfect for nano tanks. It works great so far, has an amazingly strong magnet that keeps the float switch where you want it, and comes with everything you need except the reservoir. The only minor flaw...Read More
  • 1
Was this review helpful: Yes(0)No(0)
 
 
 
  • Osmolator 3152
5
5.0
Keeps the tank wet.

reviewerbadge
PROS
Super easy set up. Small foot print
CONS
Pump is a little noisy.
REVIEW
This ATO is a good low cost method for ATO. The pump fits in lots of different ATO options because it's little. The system has a small foot print and does the job right. The only thing that bothers me. If I don't want to fill the reservoir right away, if the tank gets to emptied, it has a fail safe....Read More
  • 1
Was this review helpful: Yes(1)No(0)
 
 
 
5
5.0
Great ATO!

reviewerbadge
PROS
Easy setup, precise level management
CONS
None
REVIEW
Works as advertised. It seems to keep the water level very consistent. Set up was also quick and easy.
  • 1
Was this review helpful: Yes(0)No(0)
 
 
 
Write Your Review Earn 25 Points when you write a review
Sort by:
 

Overall, others give this:

  • 4.7

35 Reviewers (94%) would recommend this

Overall Rating:

download image
5  Star
 28
4  Star
 4
3  Star
 2
2  Star
 0
1  Star
 1
 

Free, Fast, and Flexible Shipping Options

  • Most products ship free—no minimum purchase required

    We ship 99% of the products we carry for free within the contiguous United States using a mix of economy methods including USPS First Class Mail, SurePost and UPS Ground. Your order will arrive in 5-7 business days.

  • upgrade your shipping for only $4.99—free upgrade for orders $199+

    Over 90% of our members receive their orders within 2 business using UPS Ground. Upgrade from free economy shipping to UPS Ground for only $4.99—or spend $199 and we’ll upgrade you automatically!

  • need your order even faster? no problem!

    Expediated shipping services are available for most products if you are in a hurry. Get guaranteed delivery in 2 business days, 1 business day, or next day by 10:30 am. Costs vary by location.

  • buy it today and we'll ship it today

    Same-day shipping is available Monday-Friday for most products—place your order by 10 am PST. Pre-ordered and back-ordered items do not qualify, nor do drop-shipped, live, or frozen shipments.

Learn More About Shipping

60-Day Return Period with Easy Online Returns

Return any new and unused item within 60 days for a full refund. Having difficulty with a product? Contact us to speak with an aquarium expert. If you need a replacement, fill out this form.

A small segment of the 180+ brands we carry require that customers contact them directly if/when problems arise. You can view the full list of those brands and get their contact info here.

Marine Depot is an authorized reseller for every product we carry. That means when you buy aquarium supplies from us, your products are not only backed by our own 60-day return policy, they also carry full factory warranties, where applicable. Some items have a 1-year warranty, others have limited lifetime warranties. Warranty coverage varies from manufacturer to manufacturer, so please read the product description of the item(s) you are considering thoroughly for details or contact us if you have warranty questions.

Learn More About Returns

Earn 5% Cash Back for Most Purchases

Rack up reward points to earn discounts on future purchases! You can earn reward points by creating an account, writing reviews, referring friends, subscribing to our newsletter, buying products, and more!

  • Most Products
    Earn 5 reward points for every $1 you spend to get 5% cash back
  • Marine Depot, AquaMaxx, Accel Aquatics, and Korallin
    Earn 6 reward points for every $1 you spend to get 6% cash back
  • Aqua Illumination, EcoTech Marine, Nano Box, Neptune Systems, NYOS, Oceanbox Designs, Pax Bellum, and Reef Glass
    Earn 1 reward point for every $1 you spend to get 1% cash back

You can also get bonus reward points by purchasing select items during special sales and promotions.

Learn More About Rewards

Customers Who Viewed This Item Also Viewed