5 Gallon ATO Containers



BUILT TO ORDER ITEM- Current lead time is 1 weeks
15″ x 6″ x  15″ ATO

5 Gallon ATO Containers

  • Exterior Wall Color*
SKU: 5GallonATO Category:


The synergy Reef Series ATO Containers fit in line perfect with our CL-26, TS-26, TS-34 and CL-34 series sumps. We have designed this model to be plug and play with these sumps. They can also be used with any existing reef tank setup. The Synergy Reef ATO is built of the highest quality domestic cast materials available. Our attention to detail is second to none. These are universal and will work with any ATO controller on the market.


When choosing your Exterior Color, there is an option for either All Clear or Color to Match sides and back. This is an example of the difference:

Clear Sides and Back

Color to Match Sides and Back


  • Standard – Clear Sides and Back ***** If you would like the sides and back the to be matching Color, please select “Color To Match” in the Exterior Wall Color Option above. For Storm Cloud choose “ALL CLEAR”.  Storm Cloud will have White sides/back with a Clear Smoke front. 
  • Dimensions: 15″ long x 6″ wide x 15″ high
  • Approx. 5 Gallon Storage Capacity
  • 1/4″ John Guest tubing holders for plug n play ATO connection.
  • 1.5″ Rear hole allows for power cord to be run outside the container if an internal pump is used.
  • Will work with all ATO control units
  • 4.5″ Fill hole for easy filling
  • Easy removable lid to prevent evaporation.
  • Laser Etched graduated Gallon or Liter markings on the front panel for easy measuring of water. Choose Option for Gallon or Liter.
  • Built in the USA!

MSRP: $164.99 – $174.99


Additional information

Weight13 lbs
Dimensions13 × 21 × 21 in

, , , , , , , , , , ,

Exterior Wall Color


Customer Reviews

Based on 13 reviews
Thomas Allnatt
Versatile & Stylish

I purchased this to convert to a refugium for my new reef tank. It fits perfectly inline with my Synergy. Reef sump and with just a slight conversion is perfect for the job.

Corey Veres

Great quality and looks awesome!

Debbie Vincenty
It’s Perfect

I have a 50 gal reef aquarium. Not just it’s perfect for the purpose, it’s beautiful. My aquarium is in my room and have to do the purpose and decent 👌

javier mercado
Ato 5 gallon container

Perfect love the change of color to the unit thanks

Michael Soriero

These guys built the best sump I have ever seen