FilmTec, BW60-1812-75 75 gpd TFC Membrane for Undersink Reverse Osmosis (RO) System (Replaces Model TW30-1812-75)

I work in industrial water treatment with ROs that have up to 168 membranes at 8" each. We are very nearly Dupont/Filmtec loyal and for a valid reason.They have the best membranes and their organization is the best at what they do. Very knowledgeable and very much experts in the field.While this little membrane of novelty size is much smaller and less serious, it is still of very heavy high quality.There's is not another membrane on the market that will perform over a long period of time at the level that Filmtec does.This membrane is capable of so much more, but given the environment it's been put in (poor pretreatment and low feed pressure) it still does an excellent job.Definitely recommend.

I received exactly what I ordered from Water Anywhere , a genuine Dow FilmTec, BW60-1812-75 75 GPD TFC Membrane. Installed to my 5 stage RO system the new membrane plus two carbon block pre-filters and one post carbon filter from Watts Premier WP500024 Standard Annual Water Filter Replacement Kit and a 1 micron, micronfiltercartridges string wound sediment filter instead of the 5 micron sediment filter included in the Watts kit. The 1 micron filter protects the carbon block filters from clogging much better than a 5 micron. After a 2-3 week break-in period could not detect any total dissolved solids using analog meter, Myron L Company RO Meter Model RO-1. Chlorine and chloramines damage membranes. Use a pool chlorine test kit to test the RO system waste water to make sure it is chlorine free. Don't risk ruining a new membrane because of low quality or counterfeit carbon block filters. Finding quality filters is a real challenge and is of utmost importance.

I have a 7 stages RO/DI system( 5 micron polypropylene filter, 1 micron polypropylene filter, 1 Carbon block+ 2 RO membrane + 2 stages of deionized filters).I'm using a 100 gpd booster pump right before the fist RO membrane and have a pressure gauge between the pump and the first membrane, so I can verify the working pressure (here it is 80).I manually flush both membranes for a couple of minutes right before start preparing water. Every a couple of months I clean the whole system with a cleaning solution (remember to take the carbon cartridge and the resins cartridges).The street TDS here is 57, and after the two membranes it's 2.I use this filter to prepare RODI water for my reef aquarium, and it's working great.TIP: Remember that RO membranes needs pressure to push molecules through the perforated membrane (too little pressure, excess waste water and low-quality product water will be produced, too much pressure, it could damage the membrane). That's the reason pressure gauge and booter pump may be needed.

I use this in my APEC RO-PH90. This is a fabulous price, and I am grateful because my last membrane went after 2 years instead of the reported 5 year life. The first membrane I received had holes in the plastic packaging (directions say not even to touch it during installation so I figured holes in packaging probably compromised the membrane) so they sent another and I returned the initial membrane. It fit perfectly and the system is back to working properly.

Used with my RODI system to make water for ny aquariums

Brings my local 300~ tds water to about 3-4. Works exactly as it should and still flows water well.

I purchased these for our RODI unit and they were crap!! I ended up having to order 2 more through BRS because these were defective.They only produced a 66% rejection rate which is much less than I needed it to be when making water for my aquariums. Luckily it didn't cause too much damage, but I will not trust ordering anything for my RODI unit from here again.

This brand by far is the most reliable RO membrane. It is rated for 75GPD but I’m producing roughly 100GPD even though the pre-filters are old (water pressure comes in RO membrane at 60psi, outside temperature from 63-74). Don’t trust other cheap brands listed here on Amazon, you will regret it. Bought a different brand in the past which produces 24GPD (advertised as 100gpd with 1:1 ratio) with a skyrocket Waste:Clean water ratio of 7:1.