Bulk Reef Supply

BRS GFO & Carbon Reactor - Jumbo

In stock
Out of stock

- +

Easy to use, setup and maintain. Perfect for utilizing GFO and Carbon in the aquarium. No annoying thumb screws and leaky lids like other reactors. Pump Recommendation: Sicce Syncra Silent 1.5 (A larger pump compensates for the carbon clogging over time.) Choose a different pump depending on mounting height and amount of media used.

The JUMBO BRS GFO & Carbon Reactor features several distinct advantages over other brands.

  • Heavy duty all plastic construction.
  • High quality easy to use double O-Ring push-connect fittings.
  • Easy to operate, clean and maintain.
  • High quality ball valve for precise tuning.
  • (2) 3 Ft section of tubing
  • Filter wrench
  • Ability to run carbon or GFO but not at the same time.
  • Instantly attaches to popular pumps like Maxi-Jets using included push connect fittings.
  • 1/2" fittings and ports throughout reduce head pressure and provide ample flow rates.
  • Holds 6 cups of carbon or GFO (Designed to use only one media)
  • Dimensions: 18.5"H x 11.5 "W x 8 "
  • Pump and Media purchased separately


The BRS GFO & Carbon Jumbo Reactors use 1/2" Push Connect fittings and 1/2" Mur-Lok Polyethylene Tubing


Warranty: 1 Year

More Information
Reactor Placement In Sump, Wall Mount
Media Capacity 6 Cups / 1419mL
Warranty 1 Year
Write Your Own Review
You're reviewing:BRS GFO & Carbon Reactor - Jumbo
Your Rating
Only registered users can write reviews. Please or

Product Questions

Hi just wondering this unit is 18 1/2 inch tall I’m assuming that’s including the brackets how tall is the bracket.
I’m planning on installing one in my cabinet on my 210 gallon tank.
Question by: Marty Watkins on Nov 8, 2018, 4:14 PM
Great question! The bracket for this reactor is around 7" tall.
Answer by: Josh Cuta on Nov 9, 2018, 9:51 AM
Looking at the jumbo media reactor and wanting to run GFO only. What size pump/gph would you recommend for a 180 gallon tank.
Question by: Craig Williamson on Jan 29, 2018, 2:26 PM
It will depend on the type of GFO you use since you will only need half as much high capacity as you would need to use of standard GFO. For a 180 gallon tank, if you used high-capacity GFO you could use just a standard reactor and save some money too, but for a 180 gallon tank with a jumbo reactor using regular GFO, a pump that could offer around 400-500 GPH would be ideal. You may not need that much flow, but it is always nice to have more flow and then use the ball valve to tune the flow through the GFO. Pumps like the Sicce Syncra Silent work great and so do the Reef Octopus Varios pumps.
Answer by: Charlie on Jan 29, 2018, 5:00 PM
Lost my o ring can I buy a new one ???
Question by: Jim on Jan 8, 2018, 3:08 PM
Thanks for contacting BRS!
Here is a link to the replacement o-ring (https://www.bulkreefsupply.com/replacement-big-blue-canister-o-ring.html). Have a great day!
Answer by: Josh Cuta on Jan 11, 2018, 5:41 PM
Being that this Jumbo has the capacity of 6 cups.
1. If i combined Carbon and GFO together in it. Would it be able to treat a 350 gallon aquarium?
2. If not, would I be able to run two Jumbo's, one carbon and one GFO and would they be able to treat a 350 gallon aquarium?
3. If this would be sufficient for my 350 gallon, with a medium bio load, how long do you think I would be able to go before having to refill the reactor?
4.Then my last question would be, would you have advice on a different reactor I might should use for my size aquarium if this jumbo isn't jumbo enough. :)

Thank you!! Wouldn't know what to do without BRS!!
Question by: Robert Rainey on Nov 18, 2017, 12:35 AM
The jumbo reactor will work for your 350 gallon aquarium and we would suggest using high capacity GFO and ROX 0.8 Carbon. You would need to physically mix the two medias together in a single jumbo reactor since it cannot have them separated inside due to the large diameter of the cartridge. You could use two jumbo reactors, which will be more efficient with media down the line and you could tune the flow rates for each reactor to the media inside of it, yielding the best results. In most cases we recommend carbon being changed out every 2 weeks and GFO every 4-6 weeks or whenever you see your phosphates start to rise. If you physically mix the two medias we suggest replacing the media every two weeks but only using a quarter to half the amount of GFO you would normally use.
Answer by: Charlie on Nov 18, 2017, 7:55 AM
Hi, I see you recommend a Danner Mag Drive 7 pump for GFO but I do not see one on your site. Can I use a Sicca 2.5 and if so do you have what I would need to connect that particular pump to the reactor. Thanks.
Question by: Joseph Guerriero on Jan 5, 2017, 12:00 PM
Great question! The Sicce 2.0 will be a great pump for that reactor. In order to reduce that 3/4" output to 1/2" you will need SKU: 202597 . From there, you will need SKU: 100003 which will thread into the reducing fitting and convert the pump to 1/2" push connect, which is what our reactors use for plumbing fittings and tubing. :-)
Answer by: Randy on Jan 10, 2017, 4:48 PM
In the BRS video #24, at the end of the video he said they use 2/3 carbon and 1/3 GFO in the same reactor. Can I do the same in this Jumbo BRS reactor? In the description, it says one or the other. I'm confused now. I have 180gl reef tank.
Question by: Mark Steffen on Jul 31, 2016, 5:48 PM
Hi Mark,
Thanks for the question and yes you can physically mix both carbon and GFO in the jumbo reactor. You cannot run both types of media separately in the jumbo reactor since the carbon on the top will normally fall down and mix with the GFO anyways. Just as long as you physically mix them first there is no issue with running both at the same time. : )
Answer by: Charlie on Aug 1, 2016, 9:46 AM
Does this reactor have aa air release valve like the deluxe brs reactor?
Question by: Jesse on Mar 24, 2016, 8:26 PM
Great question!
The Jumbo will have a red pressure release valve at the top. Feel free to let us know if you have any further questions!
Answer by: Connor on Mar 25, 2016, 9:37 AM
What are the dimensions of the jumbo reactor?
Question by: Jon Tietz on Jan 25, 2016, 5:59 PM
Great question!
The unit is 18.5"H x 11.5 "W x 8 "
Feel free to let us know if you have any further questions!
Answer by: Connor on Feb 3, 2016, 12:32 PM
What size pump is recommended for this reactor?
Question by: Todd Davis on May 12, 2014, 7:41 AM
Hey Todd,
A danner mag drive 5 or similar sized pump would be a solid choice. The danners happen to connect very easily with the included plumbing fittings.
Answer by: Bulk Reef Supply on May 12, 2014, 7:41 AM
what type of pump should i use if im running the rox carbon from BRS in this unit?
Question by: Eddie on Apr 26, 2014, 5:36 AM
Hi Eddie,
Something like a danner mag drive 5 or 7 would be a good choice, as well as anything else in the similar flow range (though the including fittings will make attaching to a mag drive very easy).
Answer by: Bulk Reef Supply on Apr 26, 2014, 5:36 AM
Hi, i would like to buy 2 of this reactors but im kindalost not sure whats the best pump for them
one for GFO and one for carbon , i know that carbon doesnt need strong flow so what pump you think i should buy for each ?

thank you!!
Question by: mohammed on Apr 1, 2014, 1:00 PM
Hi Mohammed,
Carbon doesn't require as much flow so on that reactor you could likely get by with something like a Mag-Drive 3. On the GFO reactor I would suggest the Mag-Drive 5 or 7.
Answer by: Bulk Reef Supply on Apr 1, 2014, 1:00 PM
What is the max tank size with a medium bio load running GFO in this reactor?
Thank you
Question by: Gil on Mar 18, 2014, 5:03 AM
Hi Gil,
The capacity of the reactor is 6 cups of media, how many gallons of tank that is good for entirely depends on what media you are putting in it though (so really you want to determine how much media you need, then size a reactor to fit that need). For example you would have about a 400g tank to exceed this reactors capacity with regular gfo, and an 800g tank to exceeds its capacity with GFO HC.
Answer by: Bulk Reef Supply on Mar 18, 2014, 5:03 AM
Is the wrench available separately for the jumbo reactor?
Question by: Mitch on Mar 14, 2014, 7:46 AM
Hey Mitch,
It is, that would be the wrench for 10 & 20" x 4.25" big blue canisters, sku 200038 found at the link below.
Answer by: Bulk Reef Supply on Mar 14, 2014, 7:46 AM
1- What is the max. size tank (med. to heavy bioload) that would work with this system.

Thanks guys
Question by: Ken on Feb 11, 2014, 4:53 AM
Hi Ken,
What was the media you were planning to put in it? It has a 6 cup capacity but 6 cups goes a long ways or a short ways to tank size depending on what your using it for.
Answer by: Bulk Reef Supply on Feb 11, 2014, 4:53 AM
What is the internal volume on this reactor?

Question by: Evan on Jan 24, 2014, 10:01 AM
Hi Evan,
The maximum capacity is about 6 cups.
Answer by: Bulk Reef Supply on Jan 24, 2014, 10:01 AM
I have two of these jumbo reactors. They work great by the way.

I need to buy a replacement for the interior plastic canister, but don't find it on the site. Can you please direct me to the right part? Thanks.
Question by: Jeff on Dec 16, 2013, 2:05 PM
Hey Jeff,
Glad to hear you like them! You can find the replacement cartridges right here!
Answer by: Bulk Reef Supply on Dec 16, 2013, 2:05 PM