Bulk Reef Supply

Single Deionization Canister

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Single Stage deionization canister. Perfect for adding a DI stage to your RO system or adding an additional stage to your current system. Comes with the Canister, Cartridge full of DI resin, and 5 feet of 1/4" tube.



  • Perfect for adding a DI stage to your RO system or adding an additional stage to your current system.
  • Canister comes with cartridge full of DI Resin
  • Cartridge is refillable
  • 5 feet of tube
  • ¼" Port
  • Easily install in less than a minute
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Product Questions

If at some point I wanted to use this for carbon would a standard carbon block filter also fit?
Question by: Chad Brocker on Dec 2, 2023, 11:06 AM
Yes you can, this canister is the standard 2.5" x 10" that will fit all of the other standard media.
Answer by: JJ K (BRS Staff) on Feb 2, 2024, 8:14 AM
What size cartrage doe this canister take if we want to put the resin in a cartrage?
Question by: Bob Bleifus on Aug 3, 2019, 2:27 PM
Hey there!

You will be wanting the cartridge for a 10x2.5" canister SKU 200002.

Take care!
Answer by: Thomas Billington on Aug 6, 2019, 11:10 AM
What kind of resin comes in this cartridge? Looking at adding a cartridge of anion for silicate removal.
Question by: Luis on May 26, 2019, 7:57 AM
Hey there-

Thank you for reaching out to us! This single cartridge upgrade comes with the color changing mixed bed resin. Otherwise we have a empty option here: https://www.bulkreefsupply.com/brs-chloramines-upgrade-kit.html that allows you to choose your own media (for DI resin you will need to buy the inner cartridge as well). Happy reefing! :)
Answer by: Brad Ohmann on May 26, 2019, 6:33 PM
I have a value plus system I believe with the 150 upgrade. Was wondering if there is a bracket to attach this to my existing system thanks
Question by: Brandon on Oct 8, 2017, 11:57 AM
Hey there,
Thanks for getting in touch with us in regards to adding this canister onto your current system. We do not sell a bracket that allows for mounting four canisters yet, but what we do here to accomplish this is mount them close together side by side, which still gives a good aesthetic appeal. Please let me know if there is anything else that we can assist with. Thanks!
Answer by: Tyler Schafer on Oct 14, 2017, 2:34 PM
I have your 4 stage plus system. I was thinking of adding this as a 2nd DI since my single di only made about 100 gallons of di before changing colors completely. Will this help? And will I have to change anything with the TDS Meter if I get second canister?
Question by: DAVID LACEY on Feb 19, 2017, 7:34 PM
Hey there! An additional DI canister will help you go longer between DI changes, but at the same consumption rate. Although you still see the single canister exhaust after about 100gallons, with a secondary cartridge you should be able to go through 200gal until both are exhausted. :-)
Answer by: Randy on Feb 20, 2017, 4:38 PM
How much resin does this hold?
Question by: Nick on Jun 28, 2016, 1:23 PM
Great question!
This will hold just under 1.25 lbs of DI resin. Feel free to let us know if you have any further questions!
Answer by: Connor on Jun 28, 2016, 5:59 PM
Can I add this single di resin canister to any ro system?
Question by: Tj spyrka on Mar 24, 2016, 3:14 PM
Great question!
This can be used on any RO unit as long as the unit has 1/4" tubing and ports to connect to. Feel free to let us know if you have any further questions!
Answer by: Connor on Mar 24, 2016, 3:59 PM
Will this work with a GE RO model # GXRM10RBL01
Question by: Toni Holley on Mar 20, 2016, 2:23 PM
Great question!
This certainly can work with many units as long as the tubing from your current unit is 1/4". Feel free to let us know if you have any further questions!
Answer by: Connor on Mar 21, 2016, 6:16 PM
I recently purchased the refill for this canister, and I'm having trouble getting it open to empty/refill it...is there a trick to it, or is it just REALLY sealed on there?
Question by: Joshua Kight on Jan 22, 2016, 2:36 PM
Great question,
The O-rings will be very tight after pressure and use, It will take the filter wrench and some elbow grease. Feel free to let us know if you have any further questions!
Answer by: Connor on Jan 28, 2016, 3:28 PM
Hi every one is telling me i should run a dual di. Set up my ? Is what will i benafit from adding another di. To my system if im allready at 0ppm tds no one has been able to tell me. Thanks in advance for the advice
Question by: Nathan on Feb 27, 2014, 5:16 PM
Hi Nathan,
Running a dual DI will not make your water any cleaner as a single DI will bring it down to 0 TDS. What the second DI chamber does is allow you to get a bit more out of your DI resin.

For example, if you have 5 tds going into your DI resin you should have 0 coming out. When that goes up to 1, its time to change your DI resin out even though technically its not fully exhausted (its still removing 4 of the 5 TDS). A dual DI allows you to fully exhaust that resin and the second DI filters out the 1-5 TDS that gets through. That way your still putting 0 TDS in the tank while fully exhausting your first cartridge.
Answer by: Bulk Reef Supply on Feb 27, 2014, 5:16 PM
At which point do i add the DI to my existing RO filters. Is it after the membrain, or after the third canister?
Question by: Brian on Jan 31, 2014, 9:03 AM
Hi Brian,
A DI resin filter would be the last filter in the set, so after the membrane the last stop before your water goes to your storage container.
Answer by: Bulk Reef Supply on Jan 31, 2014, 9:03 AM
Is it normal for the canister to be filled with air instead of water once up and running?
Question by: Matt on Jan 27, 2014, 11:52 AM
Hi Matt,
Perfectly normal and the way it should be. DI canisters work on an upflow principle compared to the radial flow of the other filters so the air is just a bubble that can't escape, nothing to worry about!
Answer by: Bulk Reef Supply on Jan 27, 2014, 11:52 AM
Does this come with the color changing DI resin or normal resin?
Question by: Kelly on Oct 19, 2013, 11:46 AM
Hey Kelly,
All of our DI's come with the color changing resin.
Answer by: Bulk Reef Supply on Oct 19, 2013, 11:46 AM