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Dual DI Phosphate CO2 & Silica Eliminator with DM-1 Dual TDS Meter

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Dual deionization add-on canister kit complete with HM Digital Dual Inline TDS Meter! Just choose your favorite DI resin to put inside. We suggest using our Pro Series Anion and Pro Series Mixed Bed Cation resins for the ultimate Phosphate, Silica, and Carbon Dioxide elimination system! Add it to your current reverse osmosis system or upgrade your current deionization system and notice immediate results!

  • Dual TDS Meter already installed
  • Perfect for adding additional DI stages to your RO system
  • Includes 5 Feet of RO Tubing
  • ¼" Push Connect Fittings


All of our RO and DI systems use 1/4" push connect tubing and high-quality Mur-Lok fittings allowing them to be compatible with any BRS RO/DI system and most others on the market today.


Suggested Deionization Resins for CO2, phosphate, and silica removal:

Stage 1 - Pro Series Anion DI Resin

Stage 2 - Pro Mixed Bed Cation DI Resin

If you have an issue with phosphates, silica, or carbon dioxide not being completely removed from your RO membrane this is the perfect solution. The anion resin will neutralize negatively charged ions such as Si, CO2, and PO4 where the mixed bed cation resin will then remove all other ions from the water, in addition being a back-up to the single bed anion resin when it becomes fully exhausted.

It is important to use a mixed bed resin that has the color changing indicator contained within the opposite charge as the single bed. If you are going to use a cation single bed, you will need to use an anion mixed bed resin as the second stage.


Dual TDS Meter Preinstalled Metering Locations

Sensor 1 - Incoming water to DI stage 1

Sensor 2 - Final output from DI stage 2


Dimensions - 10" x 6.25" x 14"


What's Included?

1x Dual Deionization Canister Assembly

1x HM Digital DM-1 Dual TDS Meter

5 Feet Blue RO Tubing


What's Needed?

Two Single Cartridge Refills of Deionization Resin - Choose the resin that best fits your water needs. 

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Product Questions

Will adding this to my value system help with CO2 in my well water exhausting my mixed bed DI resin too quickly?
Question by: Alexa Jones on Mar 20, 2023, 10:27 AM
While it should help with excess CO2 in your water, if you have high dissolved CO2 in your well water, you may want to look into getting a CO2 degasification system.
Answer by: Scott F. (BRS Staff) on May 10, 2023, 4:18 PM
Good Morning, when adding this to the RODI system do I install them at the end or before.
Sorry for the ignorance. Thank You have a good day.
Question by: Dimitri on Aug 30, 2022, 11:50 AM
Hey there,
Thank you for reaching out to us. You will install this at the end.

Please let me know if you need anything further and take care!
Answer by: Matt Lucero (BRS Staff) on Sep 9, 2022, 11:10 AM