Products

Add Heater Holders for 44

Add Heater Holders for 44

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Add Heater Holders for 60-72

Add Heater Holders for 60-72

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Additional Removable Weir

Additional Removable Weir

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Choose how many Drains you need for 34.

Choose how many Drains you need for 34.

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Choose how many Drains you need For 44

Choose how many Drains you need For 44

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Choose how many Drains you need For 60-72

Choose how many Drains you need For 60-72

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Choose how many Drains you need.

Choose how many Drains you need.

Regular price From $8.99 USD

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Choose how many Drains you need.

Choose how many Drains you need.

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Choose how many Drains you need.

Choose how many Drains you need.

Regular price $6.99 USD

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Choose how many Drains you need.

Choose how many Drains you need.

Regular price $8.99 USD

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Choose your Return Bulkhead Back

Choose your Return Bulkhead Back

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Choose your Return Bulkhead Back for 34

Choose your Return Bulkhead Back for 34

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Choose your Return Bulkhead Back for 44

Choose your Return Bulkhead Back for 44

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Choose your Return Bulkhead Back for 60-72

Choose your Return Bulkhead Back for 60-72

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Choose your Return Bulkhead Front

Choose your Return Bulkhead Front

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Choose your Return Bulkhead Front for 44

Choose your Return Bulkhead Front for 44

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Let customers speak for us

from 110 reviews

Quietest overflow system!

I've been using the overflow for over a year now and am really enjoying the very low noise the box is outputting altough I am running a lot of flow through it! Surface skimmer is perfect and cleaning is very easy. Great design!

Steeve Messier

16″ Shadow® Overflow V3 2500 GPH

09/16/2024

Good product

Good an consistent construction, easy to assemble. And thr dimensions from the website were accurate.

Jose De La Cruz

09/11/2024

Great overflow

I installed this over flow on my 240 Gallon (2 X 2 X 8) tsunami aquarium. I have it plumbed into my Synergy Reef CL-60. Everything runs great. My only regret is not getting the option to replace the filter socks with a roller mat. I had to cut my CL-60's filter sock section to accept my roller mat.

Bill Goff

08/30/2024

Very nice unit

Randy Holt

08/29/2024

Socks and silencers

The socks and silencers are great like I expected. Knew I wouldn’t be disappointed since I have had a great experience with my synergy reef sump and overflow. Thanks!

Cory Berry

Synergy Reef Filter Sock Silencers V2

05/22/2024

Sump

this is by far the sexiest thing I have seen. A++++
Will recommend to all my reef friends.

John Hammond

Synergy Reef® CL-34 Aquarium Sump

05/10/2024

Large and in charge

Originally purchased the 5 gallon reservoir from Synergy REEF and it was great, but only got me to mid week until I had to fill it again. This 10 gallon reservoir can keep my 168 gallon open top peninsula topped off all week.

Quentin Smith

10 Gallon ATO Containers (44-60-72 Series)

05/03/2024

V3 Overflow

Bought this for my new 75gal reef tank. Have yet to install but first impressions is that it is a very quality piece. Super excited to get the tank drilled and the water flowing. Ordered the bits to drill for the box as well as the return lines. Great value and shipping was very quick.

Joe Bisconer

04/04/2024

Looks great and functions great

Not much to say! Great reservoir. I have 2 pumps feeding into two different tanks from this reservoir and it’s serving its purpose, probably the best looking reservoir in the market.

Andre

5 Gallon ATO Containers (26-34 Series)

03/26/2024

Beautifully built. Amazing quality.

It’s a beautiful piece of equipment. Definitely will buy from again.

Greg Baugher

02/22/2024

Great Ato

Great ato reservoir. I went with the black and green. Didn’t even hide it under the stand it looks so nice.

Robert Peter

02/13/2024

V3 overflow

I like the quality of the V3 build. Its fits perfect on my 180. No negative feedback from me

Nicholas Gaston

01/19/2024

Perfection

It was a hard time trying to decide on spending money on an ATO Res.. vs a standard bucket. My first thoughts were its to much money, shipping etc.. however i was pleasantly surprised on how beautiful the ATO is, how fast i received it, how i was notified of the status along the build. I am extremely happy with the build and would recommend Synergy to any and all. Good work team.. dam good work!

Don C

12/28/2023

Have not installed but well packed and great design.

Jim

12/25/2023

Exactly as described — only better

I had expectations for a solid unit. Instead, I received a well built, thoughtfully planned outstanding product. What a pleasant surprise to have the ordinary become the extraordinary. Highly recommended.

ArtSam

10 Gallon ATO Containers (26-34 Series)

12/20/2023

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Collection: Products

Add Heater Holders for 44

Add Heater Holders for 44

Add Heater Holders for 60-72

Add Heater Holders for 60-72

Additional Removable Weir

Additional Removable Weir

Choose how many Drains you need for 34.

Choose how many Drains you need for 34.

Choose how many Drains you need For 44

Choose how many Drains you need For 44

Choose how many Drains you need For 60-72

Choose how many Drains you need For 60-72

Choose how many Drains you need.

Choose how many Drains you need.

Choose how many Drains you need.

Choose how many Drains you need.

Choose how many Drains you need.

Choose how many Drains you need.

Choose how many Drains you need.

Choose how many Drains you need.

Choose your Return Bulkhead Back

Choose your Return Bulkhead Back

Choose your Return Bulkhead Back for 34

Choose your Return Bulkhead Back for 34

Choose your Return Bulkhead Back for 44

Choose your Return Bulkhead Back for 44

Choose your Return Bulkhead Back for 60-72

Choose your Return Bulkhead Back for 60-72

Choose your Return Bulkhead Front

Choose your Return Bulkhead Front

Choose your Return Bulkhead Front for 44

Choose your Return Bulkhead Front for 44

Let customers speak for us

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