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Tunze Silence Recirculation Pump 1073.020 - 630 GPH


Item #: TZ1737

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Tunze Recirculation Pump Silence (1073.020)

The TUNZE® Silence recirculation pumps combine the advantages of modern and powerful universal pumps for saltwater and fresh-water aquariums.

In the production of these pumps, we have paid special attention to quality ensuring a low maintenance permanent operation for many years. They have been built in keeping with the strictest international safety standards.


  • Very silent operation
  • Rotor with high-performance one-part magnet and all-ceramic bearing
  • Very low energy consumption
  • Motor winding with protective thermostat
  • Adjustable output
  • Ergonomic design
  • 3/4“ NPT connectable to PVC fittings, for calcium reactors, filters, etc
  • Stable fit ensured by four integrated suction cups


    • Pump output: 200 to 2,400 l/h (50 to 630 US gal./h)
    • Energy consumption: 14 to 30 W (15 to 34 W)
    • Pumping head: 2 m (78.7 in.), ¾" NPT hose connection
    • Voltage / frequency: 115V/60Hz
    • Cable length: 2,2 m (86.6 in.)
    • Dimensions without outlet and suction cups: 118 x 94 x 75 mm (4.6 x 3.7 x 2.9 in.)

    Manufacturer information

    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.

    5 Stars


    Reviewed on
    December 13, 2019

    Yes, I would recommend this.


    Pros: silent operation, good flow

    Cons: none/

    It's so silent!!!! you know this design is a Sicce design...is that Tunze and Sicce are the same? not sure, but they are so solid built, do the work like a workhorse, solid build quality and looks great in my tank!! I love it!

    Was this review helpful? 1 0


    Reviewed on
    December 03, 2019

    No, I would not recommend this.

    Failed after two and a half months

    Pros: Great pressure

    Cons: Did not last long

    Used as a replacement for sea max c250 and it failed after two and a half months. Before it failed, it has very good power and was a great replacement.

    Was this review helpful? 0 0


    Reviewed on
    October 21, 2019

    Yes, I would recommend this.

    Tunze pump

    Doing great for what I need----- quiet.

    Was this review helpful? 1 0


    Reviewed on
    April 28, 2019

    Yes, I would recommend this.

    Nice pump

    Nice pump for a good price... this thing is built well and looks like it’ll last forever.

    Was this review helpful? 1 0


    Reviewed on
    April 06, 2019

    Yes, I would recommend this.

    Nice and quiet

    Pros: Quiet

    Cons: None

    Nice and quiet pump,with Tunze quality... perfect for my setup!

    Was this review helpful? 1 0


    Reviewed on
    November 03, 2017

    Yes, I would recommend this.

    Tunze quality

    High quality pumps, extremely quiet, energy efficient. I replaced my Sicce Syncra 4.0 with this pump, which is dramatically smaller. Saves power, pushes more than enough water, very high quality parts. Tunze warranty.

    Was this review helpful? 1 0


    Reviewed on
    July 01, 2017

    Yes, I would recommend this.

    Great pump

    Pros: Quiet...compact....and powerful

    Cons: I wish it had options for different height feet....the ones that came with it were around an inch long....

    I have been running this pump in my Innovative Marine Nuvo 40 since December of 2016....so just over 7 months now and no issues with noise what-so-ever...silence is the key word...it was difficult for me to imagine how quiet it was just by looking at videos....this thing is whisper quiet to say the least....i have it in my living room and can't hear it just a few feet away from the couch....the splashing water is all i hear....i do wish that the feet were shorter though...or at least an option for shorter ones.....i would highly recomend

    Was this review helpful? 1 0


    Reviewed on
    February 22, 2017

    Yes, I would recommend this.

    Little Pwerhouse

    Pros: Small size, very quiet, adjustable flow, great head pressure

    Cons: I wish the adjustability could be managed via a small controller as adjusting the unit in a small sump return is difficult.

    This pump is quite powerful for its small form factor. Right out of the box it feels sturdy and well constructed. It's literally silent (as the name indicates). Raised suction cup feet attach it to any tank/sump surface and buffer what little vibration it produces. It also has adjustable flow via a manual dial on the front of the unit which opens or constricts the flow into it. This is a capable and durable design.

    Was this review helpful? 1 0


    Reviewed on
    October 05, 2016

    Yes, I would recommend this.

    Tunze 1073.040

    As advertised, this pump really is silent. I returned a mag 7 because it sounded like a freight train in my living room. This thing rocks. Silent operation in comparison, and the adjustable flow made it very easy to sync my return with my overflow. I would absolutely recommend this pump if noise is a concern.

    Was this review helpful? 1 0

    john powers

    Reviewed on
    June 29, 2016

    Yes, I would recommend this.

    The best

    Quiet. reliable.

    Was this review helpful? 0 0

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