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Synergy Reef Systems

  • Shadow Overflow
  • Synergy Reef Sumps
    • All Sumps
    • Sumps by Lenght
      • 26" to 34" Sump Models
      • 44" Sump Models
      • 60" Sump Models
      • 72" Sump Models
    • Fleece Roller Mat Sumps
    • Filter Sock Sumps
    • Triton Sumps
  • Auto Top Off
  • Accessories
    • Plumbing Parts
    • Filter Socks/Filter Sock Silencer
    • Tools
  • Who We Are
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Welcome to Synergy Reef!

Our Products

  • Shadow Overflow

    Shadow Overflow

    Shadow Overflow

  • Fleece Roller Mat Sumps

    Fleece Roller Mat Sumps

    Fleece Roller Mat Sumps

  • Filter Sock Sumps

    Filter Sock Sumps

    Filter Sock Sumps

  • Auto Top

    Auto Top

    Auto Top

  • Accessories

    Accessories

    Aquarium and Other Accessories

    Accessories

  • Triton Method Sumps

    Triton Method Sumps

    Triton Method Sumps

Let customers speak for us

from 123 reviews
CL-26 Aquarium Sump

Awesome sump ! The build and the delivery time was excellent. The Synergy CL-26 Sump fit perfectly underneath my stand with plenty of room to maneuver. Was able to fit a Simplicity DC320 Protein Skimmer with no issues, plenty of space ! Very pleased with this sump ! Thank you SYNERGY 🤘🏻🤘🏻🤘🏻

William Bain / UPS Store
Synergy Reef® CL-26 Aquarium Sump
01/04/2025
Convenient

Layers of glue is not best sealing approach but effective. All my flow goes thru the shortest with u installed for noise. 800 gallons an hour through filter sock others just drip into sump.

Tom Shaw
Internal Pre-Cut Pipe Kit
01/01/2025
63 mm Hole saw

Worked great nice clean cut!!

Customer
63mm Diamond Hole Saw
12/16/2024
Line Lock

I purchased the double kit for my 75 gallon system. They work great I have used them for years!!

Customer
Loc®Line Return
12/13/2024
Great over flow

I installed it on my 75 gallon tank. Works great so quiet once tuned in. Synergy provided get information from drilling holes to installing and adjusting. Super quite great product!!!

Customer
16″ Shadow® Overflow V3 2500 GPH
12/13/2024
Very impressive

Given its superior quality, customizable color options, and robust functionality, the Synergy Reef sump is highly recommended for a stylish and efficient filtration system.

Shaun Jones
Synergy Reef® SK-44 Clarisea SK5000 & Filter Sock Sump
12/06/2024

For large aquaria this is the only overflow that can handle high gph in a single unit.

Dominic Derome
16″ Shadow® Overflow V3 2500 GPH
11/25/2024

Very well crafted unit. High quality overflow

Dominic Derome
16″ Shadow® Overflow V3 2500 GPH
11/21/2024
Great Product

Works flawlessly for my 310gal aquariums. Only need one gate valve to fine tune the sound out of the drain. Quality product. Highly recommend.

SPReefs Seth Pope
16″ Shadow® Overflow V3 2500 GPH
10/14/2024
Great ATO container

I am very pleased with my ATO container. It holds a goodly amount of RO water.

STEVEN BENDER
15 Gallon ATO Containers (44-60-72 Series)
10/14/2024
Excellent Sump at Fair Price

So I ordered a RM 34 roller mat sump that needed to be cut down to a 32”. It came in about a month and it was shipped extremely well. It took me hour to bag up all the peanuts from packaging. :) It looks amazing and while I have not installed it yet (waiting on tank) I am certain it will perform just fine! My only thought is I wish the acrylic was a little thicker but overall very happy.

Chad Zenzen
Synergy Reef® RM-34 Red Sea ReefMat or Clarisea Sump (Rollermat)
10/10/2024
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
16″ Shadow® Overflow V3 2500 GPH
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.

William Goff
16″ Shadow® Overflow V3 2500 GPH
08/30/2024

Very nice unit

Randy Holt
16″ Shadow® Overflow V3 2500 GPH
08/29/2024
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