Works as advertised. Much cheaper than big box supply stores By kiapolo on 2/28/14kiapolo would recommend this product to a friendI produce about 5 gal of RO water a week. My first filter lasted a few years. Just replaced recently and works like a charm. A little difficult removing from the RO cannister, but that's just the way it works.
What an addition By Manfred on 2/18/14Manfred would recommend this product to a friendUpgraded my older 35 gallon per day membrane with this one and my water production nearly tripled.
Excellent product By Redneck reefer on 1/23/14Redneck reefer would recommend this product to a friendBought this to upgrade existing unit and have to say I've never used a better membrane especially for the price 0tds Ty brs
Good Membrane By Preston on 1/6/14Preston would recommend this product to a friendFirst membrane that came with my value RO unit gave me 0ppm water with the inline TDS meter from BRS. Which was about 1.5 micro siemens on my higher quality TDS meter.
This one brings the ppm to about 1-3ppm at any given time. This hasn't been a problem in any of my tanks. Very satisfied overall with the product.
excellent By joepat on 12/23/13joepat would recommend this product to a friendReplaced mine last week along with all the filters and everything once again works like new. My original membrane lasted over two years and I have a 180 and a 90 gallon tank and make a lot of water.
Specs Says it all. great membrane. all i buy By BuckeyeFrags26 on 12/12/13BuckeyeFrags26 would recommend this product to a friendThis specific membrane in general is the only type and manufacture that I use in my RODI system. I just now had to replace mine after 1 year of use. And I have to 32 gallon water wells , one for mixing my saltwater one for my r.o. H²O. And I currently have a 125gal reef Display and a 55gal frag tank so I use my r.o. system on a weekly basis. So I can't say enough good things about this product and manufacture.
Long lasting By Nish on 10/21/13Nish would recommend this product to a friendVery good product, long lasting. Performing as expected.
Good Product By Eric on 7/5/13Eric would recommend this product to a friendKnocks tds down to 8 ppm. Works well. Will buy another at some point.
Only the best! By Andy on 5/15/13Andy would recommend this product to a friendI have always used this membrane from day one. Best on the market.
Easy thing to go to150 gallon I every done By BG on 5/4/13BG would recommend this product to a friendOriginal had a 50 Gallon per day unit RO units, Purchased 2 75 gallon RO and various pieces to make conversation. When like a dream ( not nightmare) and now getting all RO water I can use in one day. Have three 55 drums setup for Top of Unit and salt making to support my 135 and 92 gallon reef and Fish only tanks. Wish I did this conversation years ago. Water bill and time I save is great. BRS sells upgrade setup for 75 gallon RO and it is really worth the cost to lower you water usage. Thanks BRS for video that directed me to doing conversation.
Excellent Product By STEVEN on 4/3/13STEVEN would recommend this product to a friendI purchased this product to upgrade from a 50 gpd. I am very happy with the performance of this ro membrane and would purchase again.
75 GPD Reverse Osmosis Membrane By Big Dog on 4/1/13Big Dog would recommend this product to a friendThis 75 GPD Reverse Osmosis Membrane is the best one you can buy in my opinion. I have used this brand in the past and each one has lasted me over 3 years each. It's worth the money.
Ask a Question About '75 GPD Reverse Osmosis Membrane - Dow Filmtec'
Previously Asked Questions
by BJ on September 4, 2013, @5:12 PM
What were to happen if you put a membrane at a different rate than the unit is mark at? For example, putting this 75gpd into a 50gpd RODI unit or putting a 90gpd membrane into a 75gpd unit? They all seem like the same plastic enclosures. Does the membrane just really dictate the GPD output?
Bulk Reef Supply Hey BJ,
If you change the size of the membrane without changing the flow restrictor to the proper size your unit will have the incorrect amount of waste water. It will either have too little water which would damage the membrane or too much water, which is just a waste of water (and could decrease pressure). The housings for the membranes themselves are universal. The membrane is what changes the output, though there are some other factors such as water pressure and temperature that do as well.
by Linh on October 25, 2013, @3:56 PM
I have purchased a 75g 5stage plus rodi 6mths ago and wanted to know how long should the membrane and di resin last. From the first time I used it my tds coming in to the di chamber starts around 120 for afew minutes then gets down to 10. Comes out to 0 going out of the di chamber. Does this sound about right or do I need to change the membrane. I've change the sediment filter also. Thanks.
Bulk Reef Supply Hi Linh,
That sounds pretty typical. It is higher at first because of tds creep and will lower as it runs. Non-exhausted DI resin should give you 0 TDS coming out. The membrane itself will typically last 3-5 years, sometimes even much longer. DI resin doesn't really have a "normal" as it is completely dependent on your source water. Monitor the TDS and when it begins to go above 0 then it is time to change the resin. We use a color changing DI resin so this should also coincide with the resin turning from a dark blue/black color to a gold/yellow color.
by Miles on April 1, 2014, @4:47 PM
Can this work with Corallife products, such as the pure flo-II?
Bulk Reef Supply Hi Miles,
Membranes are a standard size so they will fit in any unit. Just make sure that if you change the speed of the membrane you also change the size of your flow restrictor to match.
75 GPD MEMBRANE (98% REJECTION RATE) Hands down the best membrane for our hobby.
Compatible with all RO systems
FILMTEC reverse osmosis membrane elements for home drinking water are the industry's most reliable. Advanced membrane technology and automated fabrication allow these elements to deliver consistent performance that equipment suppliers, water treatment dealers, and residential customers can rely on. FILMTEC elements are shipped dry for convenient handling and long shelf-life. These elements are NSF/ANSI Standard 58 listed. Equipment suppliers can take advantage of FilmTec's Standard 58 listing and participation in the NSF Data Transfer Protocol to reduce costs for reduction claims for their systems.
- Rated at 50 psi
- Will purify about 20% more water than competitive elements rated at 60 psi
1. Permeate flow and salt rejection based on the following test conditions: 250 ppm softened tap water, 77°F (25°C), 50 psi (3.4 bar), and 15% recovery.
2. Permeate flow rates for individual elements may vary +/-20%.
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