Bulk Reef Supply

4 Stage Universal RO/DI Replacement Filter Kit


1 x BRS Universal Carbon Block Filter - 1 Micron   + $0.00

1 x 1 Micron - 2.5" x 10" Sediment Filter   + $0.00

1 x One Cartridge Refill (1.25 lbs.) DI Resin (Color Changing)   + $0.00

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    Why does BRS recommend this?

    For almost all 4 Stage RODI systems we recommend the BRS 4 Stage Value replacement filter kit. This kit included high quality filter elements including the Purtrex 1 micron sediment filter and BRS Universal Carbon. We would be very wary of using cheap, low quality carbon blocks in a 4 Stage RODI system because they do not last as long and will start to let organics and chlorine though very quickly. The kit also includes Color Changing DI resin which comes in a vacuum sealed Mylar bag for a long shelf life and effectiveness.


    This kit is designed to treat all major water sources including well water and water treated with chloramines or chlorine. The 4 stage Value Replacement Filter Kit has been upgraded with the latest in carbon block technology and the best four stage RO/DI solution to universally treat for chloramines, chlorine and well water. The kit includes the NeoPure 1 Micron Sediment Filter, a new 1 Micron BRS Universal Carbon Block and a BRS Color Changing DI Refill. This kit can be used with NEW 4 Stage BRS RO/DI systems as well as legacy systems and all major competitor 4 stage RO/DI systems that use standard 10” filters.

    • NeoPure 1 Micron Sediment Filter
    • BRS Universal 1 Micron Carbon Block
    • 1.25 lb. Color Changing DI Resin Refill


    Recommended Installation

    • Stage One - NeoPure 1 Micron Sediment Filter
    • Stage Two - BRS Universal 1 Micron Carbon Block
    • Last Stage - DI Resin


    NeoPure Sediment Pre-Filter

    Utilize sediment pre-filters to protect the more expensive carbon blocks and to prolong overall filter set life overtime.


    Carbon Block

    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.

    • NSF Certified
    • 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****


    Color-Changing DI Resin

    BRS Color Changing Resin is packaged in foil-lined 4mm Mylar bags and vacuum sealed to maintain maximum storage life and effectiveness.

    • Changes Color from Blue to Brown as the media is exhausted.
    • 2 year shelf life (unopened)
    • Total Cation Capacity: 1.9 meq/mL min (Na+ form)
    • Total Anion Capacity: 1.25 meg/mL min (cl+ form)


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

    More Information
    Filter Dimensions 10 in. x 2.5 in. (Standard)
    Sediment Filter Type True Gradient Technology
    Micron Rating 1
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    Product Questions

    I had bought a used aquafx barracuda rodi system. Would this kit work with that?
    Question by: Brittney Melick on Nov 18, 2022, 7:18 PM
    Assuming your system is a standard 2.5" x 10" cartridge then yes this would work.
    Answer by: William Reed (BRS Staff) on Nov 26, 2022, 10:16 AM
    Thanks for the question! These would work as our filters are standard size!
    Answer by: James Johnson (BRS Staff) on Nov 26, 2022, 10:19 AM
    Is this item compatible with the Coralife ro/di 50 filter system?
    Question by: scott on Sep 26, 2022, 4:32 PM
    Hey there,
    Thank you for reaching out to us. Yes, these filters will work in that system.

    Please let me know if you need anything further and take care!
    Answer by: Matt Lucero (BRS Staff) on Sep 27, 2022, 10:00 AM