Bulk Reef Supply

5 Stage Premium 75 GPD RO/DI System

In stock


1 x 75 GPD Universal RO Body Only   + $0.00

1 x 5 Stage Premium DI ONLY   + $0.00

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    Makes up to 75 Gallons of RODI Water Per Day!

    BRS 5 Stage Systems are our most popular systems and are great for a majority of wells, along with city water that is treated with chlorine, or small amounts of chloramines. The single Color Changing DI stage comes on its own bracket allowing you to customize the installation depending on the space you have available. Every BRS RODI system can be installed within minutes with the easy to use Mur-lok push-connect fittings that allow you to make leak-free connections. 


    5 Stage Value Water Saver RO/DI Features:

    • Produce 0 TDS water
    • Dual Universal Carbon Blocks
    • Multiple source water connections
    • Mur-lok Push Connect dual EPDM O-Ring fittings
    • 10 Ft Each of 1/4" Blue, Red and Black Tubing
    • Pre-installed NSF Certified Filters NSF Certified


    Lifetime Warranty All Bulk Reef Supply RO/DI Systems are covered by our Limited Lifetime Warranty.


    Bulk Reef Supply RO/DI systems only use the latest filters and components in Reverse Osmosis technology. We have designed our RO/DI units especially for reef tanks, but they can produce perfect water for other types of saltwater and freshwater aquariums too. If you have a well, or you are connected to city water we offer a variety of RO/DI systems that will fit your aquarium's needs.


    4 Stage RO/DI Systems - Perfect for city water that is treated with low amounts of chlorine, or well water with very minimal contaminants. Four stage RODI systems are a great solution if you only connect your RODI system temporarily or have little space to dedicate to storing a RODI system.
    5 Stage RO/DI Systems - Our most popular systems handle common impurities found in well water along with most types of city water treated with chlorine including small amounts of chloramines.
    6 Stage RO/DI Systems - If you are not sure what is in your water, or it contains excessive amounts of TDS or hard to remove contaminants like chloramines, phosphates, nitrates, silicates, etc. The BRS 6 Stage systems are designed to effectively treat any water your home may have prior to using it in your aquarium. The Dual DI stage helps with the hard to remove ions like ammonia, phosphates, silicates, etc.


    5 Stages of Filtration

    Stage 1

    GE ROSave.Z 1 Micron Depth Sediment Filter NSF Certified

    Made in the USA and made for Reverse Osmosis applications and will last up to twice as long as other conventional depth sediment filters. The longer lasting filters help protect the more expensive carbon blocks allowing you to save money. 
    For more info on GE ROSave.Z Filters - Click Here

    Stage 2 & 3

    BRS 1 Micron Universal Carbon Block NSF Certified (Chlorine 35,000@1 GPM / Chloramines 3,500@0.5 GPM)

    Our Universal Carbon Blocks are manufactured with high-quality catalytic active carbon that is then extruded with up to 30% more carbon than standard carbon blocks. These blocks are excellent at removing VOC, chlorine, and chloramines. 
    For more info on BRS Universal Carbon Blocks - Click Here

    Stage 4

    75 GPD Dow Filmtec Membrane NSF Certified (up to 99% rejection rate*)

    3:1 Waste to Product Water Ratio

    DOW is hands down the industry leader for residential RO membranes. The 75 GPD Filmtec membrane can remove up to 99% of contaminants from traditional household drinking water. All membranes do require pressure to operate correctly, and DOW membranes require 50 PSI of feed pressure to operate efficiently.
    For more info on DOW membranes - Click Here


    Stage 5

    Nuclear Grade Color Changing Deionization Resin

    Deionization resin is the final stage of the RODI system and can polish your water down to 0 TDS. The DI resin is a mixed bed with a color changing indicator to let you know when it is becoming depleted. The resin starts as a dark blue color that will turn gold when as it becomes exhausted and is a good indicator to let you know when to start looking at your TDS meter.
    For more info on Color Changing DI Resin - Click Here


    Need Replacement Filters? 5 Stage RO/DI Replacement Filter Kit


    BRS RO/DI 5 Stage System Comparison

      BRS 5 Stage Premium RO/DI Systems BRS 5 Stage Premium Plus RO/DI Systems
    Gallons Per Day
    75, 100, 150, or 200
    75, 100, 150, or 200
    Sediment Filter
    1 Micron GE RO Save.Z Premium Sediment Filter 
    1 Micron GE RO Save.Z Premium Sediment Filter
    Carbon Blocks
    1 Micron BRS Universal Carbon Block 
    1 Micron BRS Universal Carbon Block
    75 or 100 GPD Dow Filmtec Membrane

    75 or 100 GPD Dow Filmtec Membrane

    Single Mixed Bed DI Stage with Refillable Cartridge

    Single Mixed Bed DI Stage with Refillable Cartridge

    Auto Shut Off Valve
    Canister Wrench
    Laundry Tub Connection Adapter
    Chrome Faucet Diverter Valve
    Glycerin Filled Pressure Gauge  

    Flush Kit  
    Dual Inline TDS Meter  
    Dimensions 16" x 6.25" x 15.5" 16" x 7" x 15.5"


    5 Stage Value 75GPD RO/DI System Recommended Conditions:

    • Minimum Water Pressure - 50 PSI
    • Max Water Pressure - 90 PSI
    • Recommended Water Temperature - 77°F
    • Recommended Max TDS - <500ppm
    • Waste to Product Water Ratio - 3:1

    Water pressure can be increased by adding a booster pump before your RO/DI system. Low pressure may cause the RODI system to produce excessive waste water. Pressure over 90 PSI may cause damage to the RO/DI units filters and components.


    *DOW Filmtec 75GPD Membranes have a 96% - 99% typical stabilized salt rejection rate that can be reproduced through the following conditions;

    • Source Water Pressure - 50 PSI / Membrane
    • Source Water Temperature - 77°F
    • Source Water TDS - 250ppm Softened Tap Water
    • Recovery - 15%
    • Minimum Salt Rejection - 96%


    pdf BRS 5 Stage RO/DI System Instructions

    pdf Dow Filmtec Membrane BW60-1812-75

    More Information
    SKU 211487B
    Short name for grouped product 75 Gallon Per Day Premium
    UPC 853710007575
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    Product Questions

    Will this RO system reduce my tap water PH?

    Thank you....
    Question by: Dave Carlson on Nov 29, 2021, 2:05 PM
    The BRS RODI system will output water that is at 7 pH. If the pH of your tap water is above 7, it will reduce it.
    Answer by: William Glenn (BRS Staff) on Dec 13, 2021, 3:14 PM