Reef Octopus

VarioS-2 Controllable DC Pump (792 GPH)

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$259.99 $259.99

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Reef Octopus VarioS DC pumps give you enhanced performance and precise control of flow through your aquarium's reactors, sump, or closed-loop system.

With complete control through the VarioS Controller, you can control the flow of the pump, enter feed modes (15 or 60 minutes), add a safety float switch (included), or simply connect it to a third party controller like an Apex.

Max Flow: 792 GPH

Max Head: 13 FT

Dimensions: 5" L x 3" W x 4.15" H


Efficient - Safe - Reliable

5 Flow Settings - Precise control of the pump for any application

True Slow Startup - Easy on equipment and saves energy

Detachable Controller - Waterproof union

Float Switch - Creates a new standard for pump safety

Rotatable Volute - Rotates in 90-degree intervals

Integrated Memory - Keeps programming even during power outages

Feed Mode - Shuts down for 15 or 60 minutes

Submersible or External - Perfect as a return, closed loop, or reactor/filter pump.

Super Quiet Operation - Perfect for places where any noise is not tolerable.



The safe and energy efficient VarioS DC pump now include the new VarioS controller giving you more control. With 5 different energy saving speeds and two feed modes, the controller lets you know what your pump is doing at a glance.


Third Party Control

There is a dedicated port on the VarioS controller letting you directly connect your VarioS pump to any third party controller through a 0-10V reference port. Controlling your pump through a controller like an Apex lets you create your own flow profiles which are particularly handy for closed-loop systems creating a random flow throughout the aquarium.



Having a pump that lets you directly attach a float switch has several advantages. The float can let you set high or low points in your sump, skimmer cup, or display tank that will shut the pump off when the float is activated.

The VarioS controller includes a waterproof 3-conductor union that connects to the pump creating a safe and detachable connection.



  • Input: 1" Slip PVC
  • Output: 1" Slip PVC or 1/2" - 3/4" Stepped Barb
  • Max Flow: 792 GPH
  • Max Head: 13 FT
  • Wattage: 25W
  • Voltage: 24V DC
  • Dimensions: 5" L x 3" W x 4.15" H
  • Cable Length: 6 FT
  • Pump Warranty: 2 Years
  • Rotor Warranty: 1 year


Whats in the Box

  • VarioS-2 Controllable Pump
  • VarioS Controller
  • Power Supply
  • Float Switch
  • Input Union
  • Output Union
  • 1/2" - 3/4" Stepped Barb
  • Protective Intake Screen


Note: VarioS pumps are not pressure rated, and therefore not recommend for high head pressure applications or equipment like Becket and downdraft skimmers.


Not sure which VarioS pump is right for you? Find out more

More Information
UPC 6950291252180
Variable Speed Yes
Gallons Per Hour 600 - 1000 GPH
Max Head Height 10 - 15 Feet
Control Type Digital DC Control (Controller Included)
Compatible with Controllers Apex, GHL, 0-10V
Output Size 1 in.
Power Type DC
Power Consumption 25W
Power Cord Length 6 Feet
Input Size 1.0"
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Product Questions

What battery backup is compatible with this pump? The Ice Cap v3 isn't compatible nor the VorTech. Do I need to purchase a UPS battery backup instead?
Question by: David Lewis Jr on Mar 28, 2024, 11:08 PM
Hey there! Yes, you may need to look into purchasing a UPS battery backup as the battery backups we have at BRS are not compatible with the VarioS pumps unfortunately.
Answer by: Laura (BRS Staff) on Apr 18, 2024, 2:07 PM
What are the dimensions of the pump with the screen on? Trying to figure out if this will fit in my Icecap 24 sump.
Thank you.
Question by: Sean Farrow on Dec 31, 2021, 6:03 PM
It is approximately 7" long with the screen on.
Answer by: Matt Lucero (BRS Staff) on Jan 14, 2022, 10:00 AM
How many amps would the 120ac-24dc convert use? I see the pump is 25 watts but is that 25 watts @ 24vdc?
Question by: Dustin Weaver on Nov 7, 2021, 9:40 PM
Thanks for the question. The various 2 converter has an input amperage of 2 amps at 100-240 volts. The output is 24 volts dc at 2.5 amps.
Answer by: Christian (BRS Staff) on Nov 9, 2021, 4:32 PM
If a power outage occurs and the the pump comes back online, what is the default pump speed?
Question by: Brandon Lolling on Sep 11, 2017, 6:29 PM
With the Varios Pumps if power is ever lost, they will return to the original setting it was at before the power loss. By default on the first power up, it will be set to 100% however once you set it to your specified flow rate, it will be able to remember that speed even after a loss of power.
Answer by: Charlie Ona on Sep 13, 2017, 2:48 PM
Can this be turned down to run approximately 300 gph through a Pentair 40w UV unit and is it self priming if used as external pump or need to mounted below sump level so starts with water in pump.
Question by: Bryan Smith on Jan 31, 2017, 10:15 AM
Great question! This has 5 presets for flow adjusting the flow. The max flow rating is 792gph and I would guess that the lowest may be around 100-150gph. Unfortunately, the manufacturer doesn't list the exact flow rates at each preset, so we are left to estimate. :-)
Answer by: Randy on Jan 31, 2017, 11:55 AM
Can I use this pump on the SRO XP2000 8" Skimmer? It's an older skimmer with the bubble blaster hy2000s that has gone bad. Can this replace the pump?
Question by: Frank Patano on Jan 18, 2017, 12:07 PM
Hey there! Unfortunately this pump cannot replace the pump for that skimmer. It is a return/utility pump that utilizes a different impeller than a skimmer pump and also does not have a venturi to allow an air intake line into the pump volute. For proper skimmer pump replacements, you would have to check out CoralVue listed in the contact info below! :-)

CoralVue (Reef Octopus. Elos, Maxspect, AutoAqua, Coral Rx, Reeflo, Waveline) - (985) 781-9078 http://www.coralvue.com/support/
Answer by: Randy on Jan 19, 2017, 5:25 PM