- Reverse Osmosis Flow Restrictor - Bulk Reef Supply
Flow restrictors are essential to a properly functioning RO system. Be sure to have the appropriate flow restrictor for the membrane you have. If you decide to change your membrane to a higher or lower GPD membrane, you must also replace the flow restrictor to correspond with the membrane.
All BRS Reverse Osmosis Systems have the appropriate flow restrictor installed.
The 75 and 100GPD flow restrictors are barrel models. The 150GPD is a capillary flow restrictor, which is the stem style that goes inside of your RO units waste water line, and can be trimmed if desired for optimal results.
|Restrictor||Restrictor Style||Suggested RO Membrane|
|200 mL||Barrel||20-30 GPD|
|300 mL||Barrel||30-40 GPD|
|350 mL||Barrel||40-55 GPD|
|550 mL||Barrel||55-75 GPD|
|800 mL||Barrel||75-100 GPD|
|800 mL||Capilary||100-150 GPD|
it's BIG.....REALLY big By Tank Tigger on 3/18/2018Tank Tigger would recommend this product to a friendI wanted to link a picture of this so you're not surprised. it's at least 75% bigger than normal union.
Worked perfect By BH on 12/18/2015BH would recommend this product to a friendI purchased this with the 150 gpd upgrade kit. Installed in seconds and worked perfect.
Works good! By Clockman on 2/4/2015Clockman would recommend this product to a friendGot this with the 75 gpd membrane and I must say I am a happy camper.
A Must Have if you upgrade your membrane By david on 9/25/2014david would recommend this product to a friendQuite simple. If you upgrade your membrane, you must have the correct size flow restrictor.
The opening on the 150 is very small. I suggest blowing through the hose to see if air makes it all the way through. if not, it is clogged.
Easy to install By Tom F on 5/5/2014Tom F would recommend this product to a friendEasily installed this and a 75 gallon per day filmtec membrane to upgrade my 35 gallon per day rodi to a 75 gallon per day rodi. Still probably need more for 210 gallon tank.
Works great and necessary! By Steve on 3/28/2014Steve would recommend this product to a friendIt took me a while, along with BRS support staff, to figure out my auto top-off wasn't working because my Coralife RO/DI did not have one of these!
great By 05grandprix on 3/24/201405grandprix would recommend this product to a friendFast and easy to install great replacement part
System upgrade By Manfred on 2/17/2014Manfred would recommend this product to a friendBought the 75 gallon flow restrictor and membrane and my water production went up to over 3 gallons per hour from a little over a gallon per hour. YEA!
Easy instal works great By Redneck reefer on 1/23/2014Redneck reefer would recommend this product to a friendBought with membrane upgrade installs easy and works great
Top quality By Redneck reefer on 1/23/2014Redneck reefer would recommend this product to a friendBought with membrane upgrade easy install and works great
Excellent Product By STEVEN on 4/3/2013STEVEN would recommend this product to a friendThis was purchased along with an upgraded membrane. Product was installed within seconds and performed as it should. Very happy with BRS products.
75 GPD Flow Restrictor By Kenneth on 2/15/2013Kenneth would recommend this product to a friendupgraded RO unit from a 50 GPD membrane to a 75 GPD, plus added the BRS 150 GPD Water Saver Upgrade Kit
. This was easy to install and does not leak. Would recommend.
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Is The 550 restrictor for 75gpd? I have a dual 75gpd membrane system with a 550 restictor. Just wanted to make sure it had the right restrictor. Thanks
If you have 75gpd membranes then the 550 would be the correct flow restrictor :)
I bought a used 75gpd unit of yours from a friend. He didn't have the restrictor and I have a spare 100gpd membrane. If I purchase the restrictor for a 100gpd unit can I use my membrane and produce 100gpd?
As long as you change the flow restrictor to the 100gpd to match your 100gpd unit, you can run the 100gpd membrane.
I've been checking out the you tube videos on how to upgrade r.o. systems.. I recently purchased a 50gpd aquatic life 3 stage system and aquatic life booster pump. If I purchase a 50 gpd membrane and housing and add that to the exsisting kit what restrictor should I purchase.?
If you were to find another 50 GPD membrane you will not need to change the flow restrictor. The same flow restrictor will be used on the single waste water line coming out of the second membrane. Feel free to let us know if you have any further questions!
Where do you install the flow restrictor? Does it go on the incoming water to the membrane or the out going side?
It goes on the waste water line out of the membrane.
Which line do I connect the flow restrict or to? I bought the R/O unit used, replaced all the filters including the membrane. The unit did not have a restrictor on it...
The flow restrictor always goes on the waste water line. They come in a few different varieties including some that are on the inside of the tubing. Your unit likely wouldn't have worked without one so pretty good bet its hiding there somewhere.
I bought your 150 gpd water saver upgrade kit should i change my 75 gal flow restrictor to the 150 flow restrictor
No you should not. You want to keep your existing 75gpd flow restrictor :-)