Bulk Reef Supply

5 Stage Premium Plus 75 GPD RO/DI System

In stock


1 x 75 GPD Universal PLUS RO Body Only   + $0.00

1 x 5 Stage Premium PLUS 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. 


    PLUS RO/DI System Included Upgrades

    • HM Digital Inline Dual TDS Meter - Instantly know the purity of your water, before and after the deionization stage. The inline probes come pre-installed and with the simple push of a button, your waters TDS is displayed on the LDC monitor. 
    • Glycerin Filled Pressure Gauge - Reverse Osmosis membranes require a particular amount of pressure to operate efficiently, and using a pressure gauge will help ensure your system is performing correctly. Pressure Gauges also work as a great indicator of when sediment or carbon blocks start to become clogged. 
    • Membrane Flush Valve - Keep your RODI system running like new by flushing the membrane for a few minutes before and after each use. Membrane flushing helps remove any built-up mineral deposits from your membrane, that could harm performance, or even cause a complete clog.


    5 Stage Value Plus Water Saver RO/DI Features:

    Dual Inline TDS Meter  |  Flush Kit  |  Glycerin Filled Pressure Gauge

    • 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 75 GPD 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 75 GPD 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%


    More Information
    SKU 211491B
    Short name for grouped product 75 Gallon Per Day Premium Plus
    UPC 853710007612
    Manuals  BRS 5 Stage RO/DI System Instructions
     Dow Filmtec Membrane BW60-1812-75
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    Product Questions

    I have a premium 75 gallon per day system.
    My pSI is pretty consistent at 68 pounds. During operation. TDS says zero after the creep.
    What is the range for the system to still produce zero TDS water.
    Min pounds?
    Max poinds?
    Sometimes it fluctuates when somebody around the house turns the water on or off. That is why I’m asking.
    Question by: Joel weiss on Apr 17, 2023, 8:40 PM
    This unit functions best when run between 50-80PSI.
    Answer by: Ash (BRS Staff) on Apr 21, 2023, 11:27 AM
    Can the system be used for drinking water too?
    Question by: Gabriel on Feb 25, 2023, 12:48 PM
    Absolutely! We recommend you use a tee fitting to split off before the DI resin portion as it is not advised to drink Deionized water.

    You can use this kit to add a faucet for drinking water:
    Answer by: William Reed (BRS Staff) on Mar 23, 2023, 1:13 PM
    how long do the filters last? how may gallons?? thanks
    Question by: leia on Feb 7, 2023, 5:16 PM
    Thanks for reaching out! A general rule of thumb is as follows:

    Sediment = 4-6 months
    Carbon = 4-6 months
    DI = Completely dependent on Source Water TDS
    Membranes = 2-3 years
    Answer by: James Johnson (BRS Staff) on Feb 27, 2023, 5:00 PM
    Could you add a T fitting before the D.I resin canister and have the line run to a pressurized tank with a line running to a faucet for RO drinking water?
    Question by: Adrian Calder on Feb 2, 2023, 8:08 PM
    Answer by: William Reed (BRS Staff) on Feb 17, 2023, 9:35 AM
    Thanks for the question! I would suggest following this video. In short, yes you can do this!

    Answer by: James Johnson (BRS Staff) on Feb 17, 2023, 10:10 AM
    does this have an auto shut off? if not which lines that you carry do?
    Question by: noah on Jan 27, 2023, 4:01 PM
    Yes, every RO unit we carry already has an auto shut off installed :)
    Answer by: Ash (BRS Staff) on Feb 1, 2023, 9:20 AM
    Hi, hope you have a good thanksgiving,

    Can you please elaborate on this question

    “Please note that RODI systems will filter all minerals from your tap water giving you purified water. Also; Alkalinity Test kits for salt water will not give you accurate results with RODI water. Thanks.
    Answer by: Christian (BRS Staff) on Nov 28, 2021, 1:47 PM”

    So after I add salt, will my Hanna alkalinity test correct?
    I ordered a 5 stage today and want to start mixing my own salt. Not sure about all the ins and outs.
    Thanks for your time.
    Question by: Joel weiss on Nov 23, 2022, 8:15 PM
    Thanks for the question, for future follow ups it's recommended to email or call directly as these are for spec information only.

    The Hanna Test kit will read accurately with salt water, but pure RODI water without any salt added will not work with saltwater test kits. Let us know if we can help with anything else!
    Answer by: Kyle Thomas (BRS Staff) on Nov 26, 2022, 12:04 PM
    Thanks for the question! The Hanna Alk tester is designed for marine water and does require salt to read properly!
    Answer by: James Johnson (BRS Staff) on Nov 26, 2022, 12:14 PM
    Hello. How long does the 75 GPD Dow Filmtec Membrane last? When should I replace it? Thank in advance. Kris
    Question by: Kristine Mangan on Jul 13, 2022, 7:44 AM
    Thank you for asking. The RO membranes should last 3-5 years or longer. An indication of membrane failure would be increased flow and high TDS in the product water.
    Let me know if you have any other questions, and have a great day.
    Answer by: Chad (BRS Staff) on Jul 13, 2022, 11:35 AM
    Is there a link for replacement filters for when it is time for maintenance?
    Question by: Erik Whaley on Apr 5, 2022, 11:42 AM
    Hey there,
    Thank you for reaching out to us. You can see all the five stage kits at the link below.


    Please let me know if you need anything further and take care!
    Answer by: Matt Lucero (BRS Staff) on Apr 6, 2022, 8:35 AM
    I have a water softener. Can this system be used with the water softener? Also, where can I find instructions for installation?
    Question by: Tom Cowsert on Mar 14, 2022, 2:55 PM
    Hey there,
    Thank you for reaching out to us. Yes, this can be used with a water softener. You can find install instructions on our YouTube channel or under the Education tab and searching RODI.

    Please let me know if you need anything further and take care!
    Answer by: Matt Lucero (BRS Staff) on Mar 16, 2022, 8:00 AM
    How long is the tubing that connects to the water source?
    Question by: Brent Nygard on Jan 30, 2022, 2:49 PM
    That tubing is 10'.
    Answer by: Matt Lucero (BRS Staff) on Feb 3, 2022, 10:11 AM
    Can this rodi system run with the smart buddy water booster?
    Question by: Anthony Pham on Nov 27, 2021, 11:24 PM
    Hello there. Yes, this RODI can be use with the Smart Buddie RO/DI Booster Pump.
    Answer by: Christian (BRS Staff) on Nov 28, 2021, 11:45 AM
    Does this remove aklalinity? MY alkalinity is over 20 dkh and was wondering if this setup would be enough.
    Question by: Kiran Panchal on Nov 24, 2021, 8:34 PM
    Hello there,

    Thanks for the question.

    Please note that RODI systems will filter all minerals from your tap water giving you purified water. Also; Alkalinity Test kits for salt water will not give you accurate results with RODI water. Thanks.
    Answer by: Christian (BRS Staff) on Nov 28, 2021, 1:47 PM