Bulk Reef Supply

Water Saver Upgrade Kit

Grouped product items
150 GPD Water Saver Upgrade Kit

SKU: 200432

In stock


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200 GPD Water Saver Upgrade Kit

SKU: 211528

In stock


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Why does BRS recommend this?

Water Saving Upgrade Kits are probably our most recommended RODI upgrade. If you have proper pressure (65+ PSI) we highly recommend installing the kit, because it will produce water twice as fast as a standard 75 GPD or 100 GPD membrane while cutting the amount of wastewater in half.

The BRS 150 GPD or 200 GPD Water Saver Upgrade Kit will increase the production of any BRS 75 GPD reverse osmosis system to 150 GPD or 100 GPD RO membrane up to 200 GPD without having to use any additional water. With the installation of this kit water production will increase from approximately three gallons per hour to six gallons per hour! It does require 65psi or more into the first membrane in order to function properly and be efficient. If your home's water pressure is less then the recommended PSI do not worry, adding a booster pump is simple and only takes a couple of minutes.


Compatible with:

150 GPD Water Saver Upgrade - All BRS 75 GPD RO/DI Systems

200 GPD Water Saver Upgrade - All BRS 100 GPD RO/DI Systems


Recommended Conditions:

  • Minimum Water Pressure - 65 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 wastewater. Pressure over 90 PSI may cause damage to the RO/DI units filters and components.


Recommended Flow Restrictor for 75 GPD RO Systems - 550mL/min

Recommended Flow Restrictor for 100 GPD RO Systems - 800mL/min


What's Included?

  • Dow RO Membrane
  • 2x 2.5" x 2.5" membrane clips
  • 2x 1/8" x ¼" 90-degree elbows
  • 1/8" x ¼" 90° check valve
  • RO membrane housing*
  • ¼" tube splitter
  • 5 Feet of Red, White, Blue and Black RO Line

*The included 90-degree elbows and check-valve come pre-installed on the RO membrane housing.


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%

DOW Filmtec 100 GPD Membranes have a 96% - 98% 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 - 500ppm Softened Tap Water
  • Recovery - 15%
  • Minimum Salt Rejection - 96%


*High TDS - Source water with high TDS we do not recommend using the 150 GPD water saving upgrade kit. If used you may experience increased DI consumption. The system will work as intended increasing filtered water production rate and decreasing the amount of waste water, but the overall amount of TDS that comes out of the system may be slightly higher than a single membrane system. Because of that your DI consumption will increase. We do recommend using two DI canisters for 150 GPD systems.

**Drinking Water RO Systems - When filling up the pressure tank will increase the back pressure, in turn will take longer to fill and increase the waste water produced by the RO system. We highly recommend a permeate pump for these applications to minimize waste water.

More Information
Manuals Instructions for Usel
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Product Questions

Is this kit only compatible with BRS RO/DI systems or will it work with others?
Question by: Michael Nicosia on Dec 8, 2023, 9:41 AM
Hi there, great question! This upgrade kit will work with any other standard RODI system, not just BRS.
Answer by: Grace (BRS Staff) on Jan 25, 2024, 11:28 AM
My PSI going into my 4 Stage RO/DI is 62 PSI. Really don’t want to spend the $105 on a booster pump. Could I get by with 62 PSI with the water saver?
Question by: Joe DiGiovanni on Jul 12, 2023, 1:38 PM
Hey there,

Thanks for the question. That pressure would be just fine for the water saver package so a booster pump should not be needed. Thanks!
Answer by: Codey on Jul 24, 2023, 3:11 PM
Do I need a second flush for the water saver?
Question by: Matthew Christman on May 6, 2023, 4:31 PM
No, this kit will included everything needed to add a secondary RO membrane to an existing RODI unit.
Answer by: William Reed (BRS Staff) on Jun 2, 2023, 10:46 AM
Do I need to change the flow restrictor that came with my 75GPD unit if I am adding this upgrade kit to it? If so what size is recommended?
Question by: Patrick Burke on Jan 9, 2023, 9:19 AM
You would not need to change the flow restrictor as long as you continue to use 75GPD membranes, meaning that you'd have a total of 150GPD.
Answer by: William Reed (BRS Staff) on Jan 12, 2023, 5:50 PM
How would you install a permeate pump in a drink water system with 2 RO membranes?
Question by: James on Aug 19, 2022, 4:48 PM
Hey James, good question. These are really only meant to go on single membrane units. If you have a water saver it becomes a little redundant. See installation video: https://www.youtube.com/watch?v=_AgqrYUn4tg
Answer by: James Johnson (BRS Staff) on Aug 22, 2022, 5:03 PM
What is the waste to product ratio for a system after upgrading to this kit.
Question by: Aaron Hunt on Aug 17, 2022, 8:20 PM
With adequate water pressure (65-80 PSI), the ratio should be roughly 1.5 gallons of waste for every 1 gallon of product water. Please let me know if there is anything else I can assist you with!
Answer by: Ash Hoglund (BRS Staff) on Aug 18, 2022, 1:34 PM
Question by: SHRIVATHSA SHRIVATHSA on Sep 6, 2020, 5:55 AM
Hey there,
Thank you for reaching out to us! Yes, this can be used on the 7-stage unit.

Please let me know if you need anything further and take care!
Answer by: Matt Lucero on Sep 9, 2020, 9:26 AM
Good Evening,

I have a 90 GPD system that I’ve pieced together, one sediment, two carbon, a membrane and two DI. The membrane is a Spectrapure 90 GPD unit. I’m wanting to add a second membrane to the system and want to know if the 200 GPD kit would be compatible and if so, which row restrictor I would have to get? Currently I have a 700 installed which was for the 90 GPD. Thank you!
Question by: Michael Jardine on Oct 21, 2019, 6:52 PM
Hey there!

With the 200GPD that would have the 800ml/min flow restrictor.

Take care
Answer by: Thomas Billington on Oct 22, 2019, 4:40 PM
Do you have instructions for adding the water saving 150gpd to a 75gpd system
Question by: Nicholas DellaVecchia on Feb 26, 2019, 3:06 PM
Thanks for contacting BRS!
We do have a great video that can be found at the link below that shows how to convert to the water saver system.


Have a great day!
Answer by: Noah on Mar 7, 2019, 10:14 AM