150 GPD Reverse Osmosis Membrane

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150 GPD Reverse Osmosis Membrane

94% Recommend this to a friend (17 of 18)

SKU: 200130

reg. $59.99

Special Price: $50.99

In Stock: 128
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Quick Overview

150 GPD membrane features a 98% rejection rate at 65 PSI which makes it the most commonly used membrane when speed is the primary importance. If you require faster water production and have good water pressure this is one of the better options.

BRS generally recommends the use of the 75 GPD DOW membranes because it offers 98% rejection at easier to obtain water pressures. The higher rejection will result in better quality water and lower DI resin consumption.


Full Details

Flow and rejection rates are based on the following:

  • 550ppm soften water
  • 65 PSI
  • 77 degree water
  • 15% Permeate Recovery
  • Data taken after 30 minutes of operation

It is very important that the water pressure going into the membrane be at least 65 PSI or the membrane will not function at specified rates.


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  • Performance is 5 times worse than the 75 GPD By Kevin on 8/19/2017

    I replaced the 75 GPD membranes on my 6 stage BRS + Water Saver system with these 150 GPD membranes. I was getting 3-6 TDS from the 75 GPD membranes. After the replacement and letting it run for well over an hour, I'm still getting 15 TDS coming out of the RO system. This is just going to kill the DI resin. So much for this being a good investment.
  • Best Bang For The Buck! By Forsaken77 on 2/16/2017

    I have been using this membrane for over a year and get 1 TDS on the product water, before the DI resin.

    I split mine off the washing machine valves, both hot & cold, using a regular garden hose splitter. I then used a "Y" hose meant for washing machines to combine both the hot & cold into 1 output. So 1 leg of the hot & cold goes to the washing machine and the other leg of each splitter is combined into 1 output that connects to a short, food grade garden hose. That connects to the RO/DI system.

    I run the GE premium .6 micron sediment filter with a 1 micron carbon block, both sold here on BRS.

    My TDS from the tap varies between 35 and 80, but comes out of the membrane at 1 or 0. I have 80 psi going into the membrane with no booster pump and fresh pre-filters. The key is to flush the membrane (mostly before) you make water. If you have the 3-way tds probes connected inline you can watch the tds get lower and lower while flushing. Obviously it's good to flush afterwards, but I use one of the auto shutoff kits to prevent over filling and that usually stops the water before I get to it. I'd rather that than ANOTHER flood.

    But BRS sells a flow restrictor with a valve knob so you can open up the flow just by turning the knob. If you're new to RO/DI setups I would HIGHLY recommend installing the auto shutoff kit.

    Also, just to let some people know, you CANNOT run these membranes without carbon before it. Chlorine and Chloramine will kill the membrane. I made that mistake in the beginning when I was rinsing a new membrane and thought I'd bypass the pre-filters. That's a no-no.

    This membrane is great if you have the pressure. There's no doubt that I am getting more than 150gpd. That's at 65psi. So at 80psi this membrane flows.
  • it works By paul on 1/13/2017

    it works like it suppose to. you do like mention previous post you need a boster pump
  • Number 1 in the industry By stephanie s on 6/6/2016

    I have had my last one for 10 years. Decided to replace this one because it was starting to leak. As long as you run water though it before and after you make water it should keep 10+ years! BRS is great at having products like this at hand that they will ship that day or next.
  • Perfect By Randy on 7/19/2015

    I purchased this to replace my old one and it has surpassed my expectations! This is a great product!
  • YOLO By Cookie P on 3/5/2014

    Works as it should, no problems installing, no leaks.
  • it works well By paul on 7/10/2013

    it works very well.
  • Insane in the membrane By Corey on 11/23/2012

    Wow, this thing puts out a nice stream of high quality H20! Just make sure you have the line pressure to run it. High rejection rate membrane showing 0 TDS out the product line.
  • Great Membrane for Great Price By Shannon on 7/19/2012

    This is the first time that I have ever brought this product, as I usually have a 100 GPD Membrane for my tank.

    After changing, the water is clear & the algae problem i am having is clearing up nicely, there is no new growth. My RO/DI water was reading extremely high & now it is back to zero ppm.

    This membrane is also at a very good price, as others I have priced are much higher. I will defiantly be buying this product again.
  • Great product By Scott Nelson on 4/21/2012

    This works as advertised. Crystal clear and pollutant free. I replaced my 75GPD membrane with this and it works as expected. BRS is a great place to get all these kind of materials
  • Great Membrane But. By Dana on 4/11/2012

    First I want to thank Lou in tech support He took time with me to make sure I had everything hooked up correctly. I had a 60 gpd. unit before I switched . To make a long story short Check what size booster pump you have. You definitely need the aqua tech 8800 if you want full output. Also if your using a saddle valve get rid of it as you need more volume than it can provide. After those changes the pump will put out 100 psi. if you need it. I also have 50 ft of 1/4 inch tubing in a cooler with 2 heaters to help warm the water need to add more heaters now the flow rate is to fast and comes out a little cooler now. But getting 2 tds. out with 95 tds. coming in. and 125 gallons per 24hrs. I'm sure once I get the water temp up to 75 Deg. it should be very close to 150. Thanks for all the help Guy's

  • awesome By kyle on 10/26/2011

    i had a small 36 gpd membrane in my unit before this one. added this and it takes a fraction of the time to produce large volumes of water. a must for the impatient ones like me :)


Ask a question

Product Questions

will this membrane fit inside a standard membrane housing?
Question by: john on Jun 18, 2014 5:28:00 AM
Hi John,
It sure will. Just be sure that you have enough water pressure to meet its higher demands and that you change your flow restrictor to a 150gpd flow restrictor (assuming you don't have a 150 already).
Answer by: Bulk Reef Supply on Jun 18, 2014 5:28:00 AM
is this the correct membrane for the BRS 150gpd water saver system.
Question by: Patrick Arden on May 9, 2016 11:47:00 AM
Our 150 gpd water saver systems will use two 75 GPD membranes back to back.
Answer by: Connor (Admin) on May 10, 2016 4:55:00 PM
Can this membrane be installed into one of BRS RO/DI filter kits? As well as getting a newer restrictor to run this membrane, what about the auto flush? Do one have to install new the restrictor before the auto flush?
Question by: Angel on Jan 14, 2016 10:57:00 AM
No answers yet. Be the first to answer the question!
Is it possible to add another 150 membrane filter to my existing 150 to be able to produce more water? I have a booster and it gives me about 80psi.
Question by: Randy Velasquez on May 9, 2016 11:33:00 PM
Great question! While you certainly can add another 150 gpd membrane to your system, we do not recommend it as the 10" pre-filters are not designed to handle more than 150gpd of flow and will restrict the system from being able to produce as much water as the membranes would be trying to draw.
Answer by: Carter (Admin) on May 10, 2016 4:55:00 PM
I let my two 75 gpd RO membranes dry out while redesigning my setup. They seem to make very little product water now. Did I ruin them? Will they work better after soaking a while? Should I replace them?
Question by: MICHAEL DONLEY on Jun 7, 2016 12:08:00 PM
Hey there,
Thanks for letting us know. In this situation while you can attempt to run them most likely the membranes will need to be replaced. Feel free to let us know if you have any further questions!
Answer by: Connor (Admin) on Jun 7, 2016 6:13:00 PM
Is this a DOW Filmtec membrane? And if not, who makes it?
Question by: Jesse on May 23, 2017 11:53:00 PM
While most membranes are produced in one of only a few manufacturing plants, the 150gpd membranes we carry are sourced from the same supplier but are not Dow-branded.

Hope this helps!
Answer by: Zack (Admin) on May 30, 2017 3:45:00 PM
how often do we change the membrane?
Question by: loc on Nov 29, 2013 4:48:00 AM
Hi Loc,
Assuming you treat them nice by keeping up on the prefilter changes, proper flushing, etc, they will generally last 3-5 years and can even last much longer.
Answer by: Bulk Reef Supply on Nov 29, 2013 4:48:00 AM
I have 75 GPD RO DI 5 stage from Bulkreef, then i purchased the 150 GPD upgrade .....so now i have two membranes , what do I use (2 )75 GPD membrane or (2) 150 GPD membrane ? ? ?
Question by: Rocky on Feb 22, 2014 4:07:00 PM
Hi Rocky,
That system would be 2x 75gpd membranes for a total of 150gpd.
Answer by: Bulk Reef Supply on Feb 22, 2014 4:07:00 PM
I have a 75 gpd 4 stage I bought almost two years ago, will 150gpd membrane fit in my 75gpd housing? And will I need anything else for upgrading to the 150 membrane?
Question by: Jamie on Nov 24, 2013 8:37:00 AM
Hi Jamie,
The 150gpd membrane will fit just fine into the same membrane housing. You will need to make sure you also replace the 75gpd flow restrictor with the 150gpd flow restrictor.
Answer by: Bulk Reef Supply on Nov 24, 2013 8:37:00 AM