BRS 4 Stage Value Plus RO/DI System - 75GPD

BRS 4 Stage Value Plus RO/DI System - 75GPD (RO/DI)
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BRS 4 Stage Value Plus RO/DI System - 75GPD

96% Recommend this to a friend (135 of 141)

SKU: 200417


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Quick Overview

This model has been retired.

For the newest 4 Stage Plus RODI system Click Here

BRS 4 Stage Value Systems are perfect for reefers who have water treated with chlorine, low volume chloramines and most well water. If you are unsure what your water is treated with try a quick test strip or checkout the BRS Universal Line which treats all types of water for virtually any size tank and you know you are covered.

Benefits of Value BRS RO/DI Systems

  • Up to 99% rejection Dow membrane* - NSF certified NSF Certified

  • BRS Universal carbon block - NSF certified NSF Certified

  • GE Purtex sediment filter - NSF certified NSF Certified

  • US Made Double O-ring Mur-Loc Fittings

  • Includes additional accessories and connections

  • Includes chlorine/chloramine test strips

  • Lifetime warranty


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Product Questions

After the holidays where over i picked this up for my tank that was in extreme need of it for the fact that the city water in Baltimore is very dirty and i have to say it works amazingly. I can see the difference from my coral to the now vanishing algae i had growing all over. My question is that i have my RO/DI system hooked up to a utility sink that has a lot of pressure so i don't really have a limit with the pressure but i wanted to know if there is an optimum level/ how much is to much pressure?
Question by: Andy Coyer on Jan 26, 2016 2:48:00 PM
Great news that the unit is working great! the ideal pressure will range between 50-75 PSI for efficiency and life of the membrane. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Feb 3, 2016 2:47:00 PM
How often do you replace the filters and can i purchase them
Thank You Manny
Question by: Manny on Mar 17, 2016 6:42:00 AM
Great question!
The filters changing time will depend on water quality however the bottom 3 filters (Sediment, Carbon Block, and DI resin) typically will last 6-9 months and I have included the kit below.

Additionally the RO membrane will need to be replaced less often closer to 2 years.
Answer by: Connor (Admin) on Mar 18, 2016 9:29:00 AM
With the 4 stage value plus ro/di unit i'm hearing you shouldnt drink the water because of the di,is the waste water before the di and is that safe to drink
Question by: Corey on Feb 8, 2016 6:00:00 PM
Great question!
The waste water will have higher TDS than your standard tap water and ideally it would be safer to drink your tap water over the waste water. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Feb 10, 2016 1:47:00 PM
Does the 4 stage ro/di have a valve so you can use either ro or di ?
Question by: DANIEL BOUGH on Jan 27, 2016 3:09:00 PM
Great question,
Our units do not have the built in ability to split. This can be achieved by adding a John guest 3 way ball valve.
Answer by: Connor (Admin) on Feb 3, 2016 6:40:00 PM
Is the unit supposed to keep draining water when not making water? I noticed mine still drains even after I'm done making new water. My unit is approximately 3 years old, is there an auto shutoff part I may need to replace?
Question by: Shawn Coley on Jan 24, 2017 11:39:00 AM
Great question! Yes, it sounds like your Auto Shut Off valve is failing and needs replacement. That is normally the problem when the waste water continues to run after a reservoir is full. The proper replacement is in the link below. :-)
Answer by: Randy (Admin) on Jan 28, 2017 7:35:00 AM
What is the amount of waste water per ro/di gallon produced?
Question by: Dru on May 11, 2016 6:23:00 PM
Great question! This unit will produce roughly 4 gallons of waste water for every 1 gallon of product water collected when running at 65PSI.
Answer by: Carter (Admin) on May 11, 2016 6:40:00 PM
Where is the tds meter getting the "in" and "out" reading from?
Question by: bradley belser on Feb 9, 2017 8:33:00 PM
Awesome question! The "IN" TDS reading is right after the RO Membrane and the "OUT" line is after the DI Resin. This helps you keep an eye on the rejection rate of the RO Membrane as well as ensure you are getting 0-TDS out of your DI Resin. :-)
Answer by: Admin (Admin) on Feb 10, 2017 12:46:00 PM
I just ordered this system and i had a question how do we use the flash vavle ? And how often ? And do we need to disconnect The membrane from the other filters to flash it out ? Thank u
Question by: edmond mahmoodi on Feb 2, 2017 3:45:00 PM
No answers yet. Be the first to answer the question!
I bought the 4 stage value plus RO/DI system, but I was thinking of placing (the unit) inside my garage and just run the red line in there. The problem is that it is about 25 feet away from my water source faucet (garden faucet). My question is, will it loose pressure the longer the red line is away from the source, or it won't make a difference? It currently sets at about 40 psi.
Question by: Ricardo on Nov 8, 2016 10:32:00 AM
Great question! Although there will be some pressure loss at that distance, it will be quite negligible. However, 40 PSI is far below the optimal performance rating of 60-80 PSI. For proper filtration and rejection rates, you may need a booster pump. :-)
Answer by: Randy (Admin) on Nov 8, 2016 11:11:00 AM
Is there a fitting I could get that would attach to my water line from the valve to the washer?

Also does it come with a float valve?
Question by: ramon rivera on Jan 29, 2016 9:49:00 PM
Great question!
To connect to a washer in many cases an adapter such as the garden hose utility sink adapter can be used. The 4 stage system will not come with a float valve however it can be purchased separately. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Feb 9, 2016 4:03:00 PM
Will I have zero TDS if not using a DI resin? Is the DI resin used for drinking water purposes?

Question by: Bill on Nov 8, 2016 12:21:00 PM
Great question! The amount of TDS removed by the RO membrane is completely dependent on your city's municipal water composition. It is not guaranteed that you will have zero TDS with these units, however you can expect a 97%-98% rejection rate of TDS if you run the unit within the optimal 60-80psi range at 77 degrees. Again, this is completely dependent on the amount of TDS from your source water.

DI water is not recommended for drinking, as it can remove electrolytes and minerals from your body over prolonged periods of time. :-)
Answer by: Randy (Admin) on Nov 8, 2016 12:52:00 PM
I have the BRS 4 Stage Value Plus RO/DI System - 75GPD with chloramine block. Prior to our home move, we had a water pressure just over 60 PSI. Our new home now looks to have a PSI just over 40. I have seen that the recommended water pressure should be 60 PSI. How will 40 PSI affect the water quality out of the RO/DI? If it is a negative result, do you have any suggestions to increase pressure going into the unit? Thanks in advance for any information on this.
Question by: Bob on Nov 3, 2015 8:10:00 AM
Great question!
40 PSI is right at the low end of the PSI rating for our systems. Our highest recommendation is to give the permeate pump which uses the waste water to increase the flow into the system. I have included a link below, Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Nov 3, 2015 3:41:00 PM
What is the maximum pressure that this RODI system can handle? I had low pressure (35-40psi) and I added the booster pump which increased the pressure to around 85-90psi. Not sure if its okay.

Thank you!
Question by: Sumant on Jan 18, 2016 4:34:00 PM
Great question!
The maximum pressure recommended is in the high 70-80s 65 is often the most optimal for the membrane. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Jan 26, 2016 7:24:00 PM
I used to use my BRS 4 at my house which was well water and seemed to use up the DI resin very quickly. Now I use it with city water and have gone through about 50 gallons of purified water with no color change yet at all and my TDS reads 0. Is it working ok?
Question by: Geoff on Jul 4, 2016 10:12:00 PM
It is very common for well water to have an excess of CO2 which is not easily removed by the membrane and will be removed by DI resin. The CO2 can consume DI Resin pretty quickly and by moving to city water the CO2 content is usually much lower allowing the DI resin to last much longer (in most cases). The TDS meters are very accurate and hardly ever go out of calibration. If the final output of the RODI system is 0 TDS then the DI resin is working. You can always test the TDS meter on a different source of water (tap water) that will have a much higher amount of TDS and the meter should show a reading.
Answer by: Charlie (Admin) on Jul 7, 2016 9:37:00 AM
The carbon filter canister was broke due to freezing weather, which replacement canister should I purchase? Also, is it still ok to use the filter media after frozen?
Question by: Zhuowei Chen on Jan 18, 2017 12:50:00 PM
Great question! You will want the 10" Reverse Osmosis Canister 1⁄4" Ports listed in the link below. We do not carry the canister separately without the lid, so you do have to purchase the entire combo. Also, because of the expansion of the ice crystals, it is going to be best for you to change all of the filters, especially the RO membrane. The ice crystals more than likely has damaged that membrane.
Answer by: Randy (Admin) on Jan 20, 2017 9:31:00 AM
Is there a way to turn the system off if I don't need 75 gpd
Question by: Zach Blocker on Dec 31, 2016 12:11:00 PM
Great question! The easiest way to stop flow would be to shut off the water feeding the unit. If you are using the faucet adapter, you can simply shut off the water from the faucet. If you are using a more permanent connection, a 1/4" inline ball valve would work as well. :-)
Answer by: Randy (Admin) on Jan 4, 2017 2:34:00 PM
After running the RODI, is it okay to leave any left over water in the tubing or is there a way to clean them?
Question by: Kai on Feb 1, 2016 10:26:00 PM
Great question!
It is certainly okay to leave water in the housing and tubing however if storing for use longer than 1 month you may want to inspect for bacteria growth or other issues. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Feb 24, 2016 3:59:00 PM
Is there a way to dial down pressure using the flush kit ball valve let's say if it is reading 100 psi with a booster pump could you open the ball valve to get the pressure to 80psi to be safe for most homes?
Question by: James Griffith on Apr 18, 2016 8:13:00 PM
Great question.
If you have a booster pump and the PSI is too high you can adjust the booster pump with an allen key to reduce the PSI. It is not recommended using any ball valve to adjust pressure. Feel free to let us know if you have any further questions.
Answer by: Connor (Admin) on Apr 26, 2016 12:20:00 PM
I am planning on purchasing a new RO/DI system. How hard is the assembly from the box to a working state if i were to use it from the faucet(connector is included, right?) .
Thank you so much!
Question by: Kenneth on Jan 9, 2017 10:39:00 PM
Great question! All of our RO/DI units come pre-assembled! The only thing you need to do is install the adapter to your sink (which is included) and install the feed line to the filtration unit. :-)
Answer by: Randy (Admin) on Jan 11, 2017 3:44:00 PM
I would like to know if the ro/di water comming out of the blue hose is recommendable for human consumption? If not, how can I get only ro water out of the system?
Question by: Edson Jerez on Mar 24, 2016 10:01:00 PM
Great question!
Our units with TDS meter, pressure gauge and DI are not recommended for human consumption as they are not NSF certified. If you remove the TDS meter and pressure gauge you can tee off the line leading to the DI resin from the RO membrane to get RO only water. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Mar 25, 2016 4:03:00 PM
I have BRS 4 stage value plus R0/ DI system 75 GPD . I would like to up grade to a 6 stage
Question by: Jose Araujo on Jan 1, 2017 9:33:00 PM
Great question! In order to upgrade your 4 stage to a 6 stage unit, you will need the kit in the link below! :-)

Answer by: Randy (Admin) on Jan 10, 2017 1:14:00 PM

Full Details

BRS 4 Stage Value Plus RO/DI System Instructions

 Dow Filmtec Membrane BW60-1812-75


All BRS RO/DI systems reflect the latest in reverse osmosis technology with updated filters, components and design updates.


Value systems:Designed to treat for chlorine, low volume chloramine usage and most well water*. Value systems are compact, portable, upgradeable and most importantly affordable.


Universal systems: Designed to be best in industry filtration for chloramines, chlorine and well water as well as cover the widest array of contaminates. This is the ideal solution if you simply want to know you have the best filtration available.


*If you are unsure if your city uses chlorine or chloramines you can use a LaMotte Insta-Test Free & Total Chlorine & Chloramine Test Strip or call your city's water treatment facility. If you don't want to bother with that, get the Universal system and know you are covered. Over 40% of municipal water supplies are now treated with hard to remove chloramines. This number is growing everyday so we recommend to the Unversal systems. If you select a Value system today, it is future proof and fully upgradeable. We offer Value to Universal Upgrade Kits which are super easy to install.


The Value Plus model is our most popular in this series; it includes a TDS meter and pressure gauge to monitor and ensure system performance as well as a flush kit to protect and prolong membrane performance.


4 Stages of Filtration:

  • Purtrex 1 Micron Depth Sediment Filter NSF Certified
  • BRS 1 Micron Universal Carbon Block NSF Certified (35,000 Gallons Chlorine / 3,500 Gallons Chloramines)
  • 75 GPD Dow Filmtec Membrane NSF Certified
  • Pre-filled Single Deionization (DI) stage with refillable cartridge


Parts Bag Includes:

  • Filter wrench to tighten and loosen canisters
  • Chrome faucet connector with adapter rings to make a non-permanent connection to kitchen sink
  • Utility sink/garden hose adapter to make a non-permanent connection to garden hose or laundry tub
  • Insta-Test Free & Total Chlorine Strips to test water for proper filter replacement


Standard Features:

  • Automatic shut-off valve
  • Mur-lok Push Connect dual EPDM O-Ring fittings
  • 10 Ft Each of 1/4" Blue, Red and Black Tubing
  • All BRS Value Reverse Osmosis units exclusively feature NSF-certified BRS Universal Carbon Block Filters with 30% more carbon than standard blocks, NSF-certified Purtrex depth sediment filters and American made NSF-certified DOW reverse osmosis membranes
  • Includes Total and Free Chlorine test strips to help identify if your city is using chlorine or chloramines
  • Limited Lifetime Warranty which includes unlimited support via chat, phone or email with our WQA certified customer service staff
  • Dimensions: 16" x 7" x 15.5"


Recommended Conditions:

  • Minimum Water Pressure - 50 PSI
  • Max Water Pressure - 90 PSI
  • Recommended Water Temperature - 77°F
  • Recommended Max TDS - <300ppm

Water pressure can be increased by adding a booster pump before your RO/DI system if a pressure increase is required. Low pressure will cause slow production of product water, with excess production of waste water. Pressure over 90 PSI may cause damage to the RO/DI units filters and components.


Quick Compare - BRS Value RO/DI Systems

 BRS 4 Stage ValueBRS 4 Stage Value PlusBRS 4 Stage Value Water Saver Plus
Price $149.99 $199.99 $239.99
Gallons Per Day 75 GPD 75 GPD 150 GPD
Sediment Filter Purtrex 1 Micron Depth Sediment Filter  Purtrex 1 Micron Depth Sediment Filter  Purtrex 1 Micron Depth Sediment Filter 
Carbon Block BRS Universal 1 Micron Carbon Block  BRS Universal 1 Micron Carbon Block  BRS Universal 1 Micron Carbon Block 
Membrane 75 GPD Dow Filmtec Membrane

75 GPD Dow Filmtec Membrane

(2) 75 GPD Dow Filmtec Membranes

Deionization Single DI Stage with Refillable Cartridge

Single DI Stage with Refillable Cartridge

Single DI Stage with Refillable Cartridge

Glycerin Filled Pressure Gauge  

Flush Kit  
Dual Inline TDS Meter  
Water Saver Upgrade Kit    


*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%

For more info on DOW Filmtec BW60-1812-75 Membrane - Click Here



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  • Can't Beat the quality for the Price By UABSleeper on 8/15/2017

    I have had this RODI system for about a 1.5 years now and I have to say for the money you can't beat the quality of this rodi unit! All the fittings and filtration media are top notch
  • Great By John Zimm on 5/18/2017

    I love how everything was already hooked up and all I had to do was hang it on the wall. That being said, if they made the metal hanging bracket on the back a few inches wider (16 inches wide), we could screw it right into the wood studs.
  • Will save you money and time By Lucas on 4/25/2017

    Worth every cent saves money in the long run. Super easy to use. Water is cleaner than ever.
  • easy as can be By Kerry on 4/21/2017

    I expected to be cutting hoses and buying adapters, staring in frustration at cryptic instructions, but the whole unit was set up completely with the adapters to connect to a hose or the kitchen sink included. Couldn't have been any easier.
  • Works great By mike730 on 4/20/2017

    I think its a great product just wish the flow was better to fill the good water instead of the bad but works great .
  • Great Product By Adam on 4/4/2017

    Super high quality and easy to use. Plug and play right out of the box. BRS is my go to for all things aquarium. The only negative I would say, and this goes for RODI units in general not just this particular unit is that they require at least 50 PSI to operate properly depending on the membrane. 60-80 PSI being optimal. If like me, you're on a well you probably don't have anywhere near that. I was in the 38-40PSI, which I didn't know until I hooked up the unit.. So, I ordered the booster pump, which is almost as expensive as the RODI unit itself. If you end up needing the booster pump then you might was well upgrade this with the 150GPH kit (which I did) that requires 60PSI to operate but produces more water faster with less waste water. I LOVE this RODI but knowing what I know now with my water pressure and needing the booster, I would have just bought the Value 150GPH system instead
  • The Best One By Oranin on 4/4/2017

    Get this one over the budget RODI.. This unit has the flush valve which will be crucial to reusing your RODI for years. Also the TDS meter is always helpful. I've never been happier in seeing a Zero on a measurement
  • Review as follows By akd200 on 4/2/2017

    I have been using this for several weeks. I got it because I wanted to start mixing RODI with my tap water. It drops my KH from 12 to 4 with a 1:3 ratio. I may go even more at monthly intervals. I do 20 gallon water changes on my 55 every day. I of corse use RODI for evaporation top off too. Surprisingly I stopped drinking tap water that I like also. I drink 18oz every 3 hours a day.
  • Well worth it! By Shawn on 3/26/2017

    Since I'm a newbie to the hobby I've done quite a bit of research on water quality. I have to say this product is GREAT! It was simple to set up and will produce enough water for my 75 gallon aquarium/31 gallon sump. I love the flushing option and the TDS meter. Fantastic job guys. Very well thought out.
  • Great well built unit. By Candi on 3/23/2017

    This is a very well built unit. Works great, easy to use. Quality.
  • Works great By Kelly on 3/22/2017

    Life saver
  • Great Setup for RODI By Michael on 3/22/2017

    It works right out of the box, instructions were easy to follow. Top notch filters installed.