BRS Universal Carbon Block Filter - 1 Micron

BRS Universal Carbon Block Filter - 1 Micron (RO/DI)
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  • BRS Universal Carbon Block Filter - 1 Micron (RO/DI)
  • Ending the Chloramines vs Carbon Block Debate! (EP1: Testing)
  • Why do I need a carbon block?

BRS Universal Carbon Block Filter - 1 Micron

79% Recommend this to a friend (22 of 28)

SKU: 208657

reg. $16.99

Special Price: $14.44

In Stock: 16,297
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Quick Overview

Why does BRS recommend this?

We spent a ton of time researching and testing to find the best carbon block available while still being reasonable when it comes to price.  There are other filters that work well however do not last as long. By simply just looking down the center of the carbon block you can see why the Universal Carbon blocks are superior to the competitors.  If you have a well, or city water the universal blocks will work for everyone in almost all reverse osmosis systems.

BRS Universal Carbon Blocks have been specially formulated for industry leading chloramine and chlorine reduction making it the highest performance and longest lasting carbon block in our industry. *See long description

  • Chlorine 35,000 @ 1 GPM*

  • Chloramines 3,500 @ 0.5 GPM*

  • NSF Certified


Full Details

New: BRS Universal Carbon Blocks were developed to be the best industry solution for chloramines, chlorine and well water to help make filter selection easier for everyone. The new block represents the latest in carbon technology by increasing surface area, volume of carbon and catalytic sites within the carbons pore network. 


BRS Universal Carbon Blocks are manufactured using high performance catalytic active carbon combined with a new binder system technology which maximizes the availability of the critical catalytic sites. The combination of advanced carbon technology, increased volume of carbon contained in each filter and proprietary manufacturing processes delivers exceptionally high chloramine, chlorine, VOC and general chemical performance.


  • Compatible with all BRS systems as well as all competitor systems which use a standard 10” filter.
  • Specifically formulated for superior Chloramine reduction 1 µm (micron) Nominal Filtration*
  • Chlorine 35,000 @ 1 GPM**
  • Chloramines 3,500 @ 0.5 GPM***
  • High chemical adsorption
  • 30% more carbon than standard blocks****

    *Nominal Micron rating for all above - 1 micron
    **2ppm free chlorine >90% reduction
    ***3ppm monochloramine >85% reduction
    ****Manufacturer's internal test data


Items 1 to 12 of 28 total

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  • Good quality By Mitch on 11/11/2017

    These work great!
  • best value By Bruce on 7/2/2017

    I make around 35 gals a week, these last me well over 6 months without passing chlorine or plugging up. Also just replaced my RO membranes that lasted 3 & 1/2 yrs using this filter.
  • Good filter By George on 5/26/2017

    It does what it's supposed to do, I recommend it.
  • Better Out There By Forsaken77 on 2/17/2017

    I regularly use the Matrikx CTO .6 micron carbon block but decided to give this 1 micron universal a shot because the rep on the phone said it's the best. Well it's not.

    I use the ROsave.Z sediment pre-filter and I only use 1 carbon block and this universal has slowed my psi rating much faster than the Matrikx .6 block does.

    I also am having another issue with it. I assembled my own RO/DI system from BRS 10" canisters and fittings. I never had an issue with any other carbon block, but it seems this one is slightly too long for some reason. Water will gather in the crease between the canister and the lid, like the lid can't close tight enough.

    So besides getting half the performance (a 1 micron vs a .6 micron) and then it lasting less time when it should be lasting longer, it's a no brainer to stick with the Matrikx block that's a few bucks cheaper.

  • Good product By JPAudio on 2/5/2017

    It does what it's supposed to do
  • Good product. By Les on 1/18/2017

    Does what it should.
  • Good 'nuff stuff By Karbbean on 12/11/2016

    High TDS and Chloramines go into the little red tube....over the fields and through the woods...and out comes zero TDS through the little blue tube !!!!

    I use this along with a 0.6 carbon block and DI since I live in an area with high TDS and Chloramines. Always 0 TDS !
  • Works OK By Bill on 11/18/2016

    I tried converting to this new dual BRS carbon block instead of the original loose carbon/pentek carbon chloramine block stages hat came with my BRS Chloramine RO/DI system. They clogged significantly faster, as in max 2-3 months even with ROSave 1micron pre filter. I went back to the loose carbon/pentek carbon stages and only have to replace them every 6 months. And not because of pressure drop or tds.
  • BRS UNIVERSAL CARBON BLOCK FILTER are the BOMB!! By FLSharkvictim on 11/17/2016

    I will only buy the Universal Carbon Block along with the Chlorine & VOC Carbon Block Filter
    for my 2nd & 3rd stages since i have a 5 stage RODI system... They last a lot longer then the cheap ones.. HIGHLY recommended!
  • just get a pentek for the same money By JoeNY on 10/27/2016

    this brs cbf seems too light weight and fast flowing to be a 1 micron solid baked block like the pentek chlorplus 10 it replaced, which just confirms brs is great at marketing, but not much else. water tastes and tests better while it's new, but my confidence it low it will keep to spec long term.
  • Great By Brofish on 9/3/2016

    Clearly a superior filter
  • 1 micron carbon block before TFC membrane is bad advice By JointheRevolution on 5/8/2016

    Always go with a .6 micron or less in before the TFC membrane, if you do not, it will melt your membrane- especially if you live in a high TDS area. Been there done that. Stick with the BRS .6 micron carbon block or other similar manufacturers in that range or lower.


Ask a question

Product Questions

replacing carbon blocks on rodi 6 stage should i use 2 of these or should i use one of these and a 5 micron carbon block?
Question by: Joshua Hansen on Apr 10, 2016 10:06:00 PM
Great question!
We recommend two of the 1 micron universal carbon blocks for best coverage of chloramines in the water. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Apr 14, 2016 10:34:00 AM
Who makes them and where are they made?
Question by: Ed on Oct 21, 2017 10:53:00 AM
Thanks for getting in touch with us. We are unable to offer contact information at the manufacturers request. Although, these blocks are produced in India.
Answer by: Tyler Schafer (Admin) on Nov 7, 2017 8:57:00 AM
How long do these last?
Question by: Michael DeNardo on Apr 15, 2016 9:08:00 PM
No answers yet. Be the first to answer the question!
What is the length on these units? I have a 10" RO canister with 1/2" ports (purchased from BRS) I would like to use for this filter, will it fit properly?
Question by: Nick on Dec 21, 2015 2:07:00 PM
Great question!
The Universal Carbon Block will fit all of our 10" canisters just fine. Most of our RO systems however use 1/4" ports which may be something to watch out for. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Jan 6, 2016 6:02:00 PM
How can I tell that it's time to replace the carbon block? By my water pressure reducing or does it start to stain? Any other way to tell?
Question by: Joey Garcia on May 2, 2016 11:03:00 PM
Great question!
With the pressure drop from where it typically is. This is the easiest way. You can also test the water coming out of the carbon block with a chlorine test strip to ensure it is removing the chlorine.
Answer by: Connor (Admin) on May 3, 2016 5:13:00 PM
Whats the difference between a 1 micron and 5 micron carbon block?
Question by: Aiden on May 28, 2016 7:48:00 PM
Hey there!

Great question! The lower the micron the smaller the particulates it will capture. A 1 micron filter will capture smaller particulates than a 5 micron filter. :-)
Answer by: Randy (Admin) on Jun 7, 2016 9:29:00 AM
i am currently using Catalytic Carbon in my stage 2 flilter, can i use these instead ? and i am using chlorplus 10 carbon block in stage 3.
Question by: Val Sammut on Jan 10, 2017 4:55:00 PM
Great question! For chlorine and chloramine removal, we now include these BRS Universal Carbon Blocks with all of our filtration units. You can absolutely replace your existing carbon and carbon block with these and have equal, if not more effective, removal of those chlorines/chloramines! :-)
Answer by: Randy (Admin) on Jan 11, 2017 3:49:00 PM
I am purchasing the BRS Universal Carbon Block Filter - 1 Micron, as stage 3 of a 4-filter home system. Stage 1 and 2 are sediment filters, this carbon filter, and a ceramic final filter. Does this BRS Universal Carbon Block Filter - 1 Micron remove fluoride from the water? If not do you have any filter that will remove fluoride?
Question by: Jan Gregg on May 19, 2016 1:38:00 AM
Hey there! We sell the RO systems which include an RO membrane and appropriate housing. RO membranes are where the actual filtration occurs and removed up to 99% of all fluoride from the water. You will want an RO membrane to remove these elements.
Answer by: Connor (Admin) on May 19, 2016 3:43:00 PM
Do you need to, or is it better to use catalytic carbon ahead of these blocks for chloramine reduction or are the good on their own? They are rated for 3500 gallons so if you run a dual set up does that double your block life to 7000 gallons?
Question by: Rick on Jan 24, 2016 5:35:00 PM
Great question!
Overall for best chloramines coverage you will want to use two 1 micron Universal Carbon Blocks. We have created a video on this exact topic included below! Overall the extra carbon block will not double the life however will ensure the RO membrane has better protection and it will have a small increase on time spent. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Feb 3, 2016 11:53:00 AM