RO Membrane

I have an APEC ROES-50 system and I seen these available for much cheaper than the APEC filter and the reviews were good. I can say that it worked for my system. My tds reading dropped from 13 to 6 after changing this membrane which is where it usually reads after the APEC membrane is changed. Cheaper alternative and works with the APEC system.

This is a reliable, inexpensive filter but here's something to save frustration with the whole system if you don't get water flow:For a while I couldn't figure out why the Express Water spigot flowed very little and the tank wouldn't fill with water. Process of elimination brought me to the air valve at the bottom of the tank. Could there be so much pressure that it prevented water from filling the tank? I bled the air out and immediately the tank began to fill and later, spigot water flow increased but was sub-optimal. Looking at an online manual for the tank I read that you should not mess with the air pressure but nothing about an over-pressurized tank. It said the pressure should be 7-10 psi. Judging from the air I released the tank had to be at 30+ psi. I used an air pump to pressurize the tank to the correct psi and spigot water flow looked just like in the videos! Mission accomplished!

original lasted about a year with daily use. our water is already decent though, not hard or anything. easy to replace and does what it's supposed to well.

If you run and RO system this is necessary.

Product came in a nice sealed package, with a box! Not the OEM one that originally came with my coralife RO system! CME was the original, but for the price think this was a way better buy! Only time will tell! Fit in the houseing perfect! Hope that helped!Update, I have had it 4 months, and my ppm are going up so I know it needs to be replaced, which is making me go threw a lot of DI resin which is not cheap as well! Thought it would last a little longer, since the original lasted about 2 years! Catch 22 buy these 2/3 times a year or spend 100$ and get the real deal!

This product came packaged great and the quality so far seems really good!

UPDATE: was a user error...finally got to troubleshoot it and had one connector bad...it is working as it should and taste and sediments improved. Ignore the bad review I hadWe have a 5 stage system. I replaced the stage 1-3 filters since they were due. All was great.Then after a week I thought to replace the membrane and the charcoal taste filter with new ones (both from this company) since I was tinkering with the system anyway.Big mistake. Terrible water taste even after many gallons drained. My wife is complaining about the bad oily water taste. There is no RO happening (the water is very hard here in Phoenix). All our dishes and water containers have now mineral deposits etc.The 18 months old membrane and filter did radical better job.

I have been using the Express Water RO under-sink system for a year now and am VERY IMPRESSED!With just my wife and I using it only for drinking water (less than 2 gallons a day), we got a full year out of the filters. No, I will not repeat this, but knowing the system could handle this demand was good. Well done!

Buen producto agua limpia

Works great for our RV we had no issues with water quality. It’s very good to be able to count on good quality water in your RV. Last thing anyone needs is bad water. Also don’t forget to sanitize your tank as directed by your TV manual!

Quick delivery and good price on this RO filter.

Bought this due to a very low quantity of pure water from the system. Swapped with the new one and the system works as expected. The initial run might take 6-8 hours to become normal.

good product, fine quality, will buy again