RM-72 ReefMat1200 Sump


RM-72 – 72″ x 18″ x 18″ Red Sea® ReefMat 1200 Fleece Roller Mat Reef Sump. Lead Time will be approximately 6 weeks.

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    • 10 Gallon ATO Containers (TS-44, CL-44, TS60 & CL60 Series)

      $239.99 $224.91$235.00

      18" x 8" x  18"  10 Gallon ATO for our TS-44 and CL-44 Series Sumps.

      BUILT TO ORDER ITEM - Current lead time is 1-3 weeks

      • Exterior Wall Color*
      SKU: 10GallonATO18

SKU: RM-72 Category:


Fleece Roller mat sumps are becoming very popular. Looking for one that will allow  you to use the New Red Sea® ReefMat 1200 Fleece Rollermats? The Synergy Reef® RM-72 model sumps are your answer.  We have designed this sump to be able to run 1 or 2 Red Sea® ReefMat 1200 Fleece Rollermats. This allows for much high flow systems, up to 4700 GPH with 2 of the RSR ReefMat 1200’s ! Very easy to drop in your RSR ReefMat 1200’s and get running. No Modifications needed.

This sump will not accommodate filter socks. It will only work with the RSR ReefMat 1200 or with no mechanical filtration.  This sump has the option of running 1 or 2 RM 1200 Fleece Roller Mats.  So 2 mechanical filtration sections (Fleece Rollermat & Skimmer).  We recommend this sump for tanks up to 450 gallons..  With 2 RSR ReefMat 1200’s there is a maximum flow rate of 4700 gph thru the sump (This is based on Red Sea’s stated flow rates and not something that we set.) But we do not recommend running high flow rates when running Fleece Roller mats, as the fleece roller mats . If you are looking for a high flow sump, please look at our CL line of sumps (Filter Sock Sumps)

These are available in left to right flow or right to left flow. Please select the option.

*****Red Sea ReefMat 1200 NOT INCLUDED*****


  • 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: 72″ long x 18″ wide x 18″ high ( 26.5″- 27″ with RM1200 Installed)
  • Dual Reef Mat 1200 Sections:  2 Sections 18.25″ x 17.5″
  • If using 1 Reefmat, the second reefmat area can be a Refugium Section 18.25″ x 17.5″
  • Skimmer Section: 22.5″ x 17.5″
  • Return Pump Section: 9″ x 17.5″
  • Total Water Volume: 94.5 Gallons
  • Skimmer Water Level: 6″ to 10″ adjustable
  • All Stainless Steel Screws are included. No plastic threaded screws.
  • Removable Laser cut media tray in between the baffles use for filter pads and bags of media
  • Laser etched water level markings to allow easy setup of skimmer water depth from 6″ to 9.5″
  • High Quality Precision Machined Poly carbonate lids over Return Pump area. (Optional lids can be purchased for the Filter Sock area, can only be used over filter socks)
  • High Quality machine rounded and chamfered edges
  • Advanced designed Euro-bracing also has cord routing and Dosing connections built in
  • 4 x 1/4″ John Guest tubing holders for plug n play dosing / ATO connection
  • Drain Input Fittings: 5 x 1.5″ ABS Bulkheads (Allows Plug n Play with the Shadow Overflow® systems)
  • 2 holes in center euro-brace to accommodate optional 1/2″ Bulkheads for easy hookup to manifold returns or reactors.
  • Return Area has a 1″ bulkhead and optional Bulkheads for easy return pump hookups.
  • Optional 10 Gallon Matching ATO can be found Here: 10 Gallon CL ATO™ This Item can be bought along with the Sump for an additional savings! See below:


MSRP: $1524.99 -$1574.99
We ship these via LTL Freight due to Large size of these sumps. Freight cost is shipped to your home or business. You can calculate freight costs on checkout.


Additional information

Weight125 lbs
Dimensions75 × 22 × 26 in

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Exterior Wall Color


4 Port Probe Holder


Heater Holders

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Sock Silencer (set)

No, Yes, I do want matching sock silencers

Add 2 x 1.5" Drains


Return Bulkhead Size

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Stainless Thumbscrews

No, Plastic is fine., Yes, Adjustable Baffle and Passive Baffle (Qty.4)



Customer Reviews

Based on 1 review
John Pak
RM-72 Reefmat 1200 Sump

Absolute quality and workmanship at its finest.

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