OptimH2O Reverse Osmosis Stage 2 RO Membrane Replacement

Reverse Osmosis Membrane replacement for the AQ-RO-3 OptimH2O Reverse Osmosis Drinking Water System.

OptimH2O Reverse Osmosis Stage 2 RO Membrane Replacement is rated 4.5 out of 5 by 13.
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  • MSRP: 59.99

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One Reverse Osmosis Membrane (stage 2) replacement for the AQ-RO-3 OptimH2O Reverse Osmosis Drinking Water System.

RO Membrane should be replaced annually based on water quality and usage for optimal filter effectiveness.

Part number - AQ-RO3-RO

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Read the Reviews

Rated 5 out of 5 by from Bye Bye Fluoride, hello alkaline water! This is my 3rd set of filters on my undercounter filtration system. I am extremely happy with the quality and value of Aquasana. I have the Optum H2O reverse osmosis with claryum. Bottled water doesn't stand a chance against Aquasana. I was looking for an affordable water filtration system that would remove fluoride plus provide alkalinizing minerals. I found it with Aquasana. This water is the best tasting water by far. I signed up for the filters for life program and definitely appreciate the discount and convenience for this service.
Date published: 2017-04-24
Rated 5 out of 5 by from I would by this product again I have had this water filter system for one year now. I love how this water taste. I know I am getting a better quality of water through this system. Before my water system, the water from my tap, or filtered refrigerator water would leave a pink residue build up in my dogs water bowl. Since we installed the water filter system, that has never happened. That right there tells me something about the difference.
Date published: 2017-05-14
Rated 3 out of 5 by from Unexpected result This brought the already-high pH 10.5 water up to pH 11.5 - which was tested on a calibrated pH meter. Rather too high for drinking water. Additionally, it was not until I got the system that I learned high pH water requires more-frequent replacement of the reverse osmosis membrane (also every 6 months). Our water has such high pH due to "lime softening" at the municipal water treatment plant.
Date published: 2016-04-16
Rated 1 out of 5 by from This is impossible to install I have called the help desk twice and they were very responsive and sent a new elbow and then a new restrictor but it still leaks. Looks like I'll have to call a plumber or abandon the whole system. This is the first filter change and I'm really bummed. The water tastes great and I love the system but changing the filter was a big mistake.
Date published: 2017-05-10
Rated 5 out of 5 by from Simplicity and convenience Available RO systems are hard to understand. Aquasana's was the easiest to understand and install. A quality product. Even better is the ease of its periodic replacement.
Date published: 2016-01-19
Rated 4 out of 5 by from Healthy Water Love that it filters so well, however it's so hard to install and replace filter- but that doesn't stop me.
Date published: 2017-03-14
Rated 5 out of 5 by from Quality water. Very happy. Love the taste and piece of mind knowing water is clean.
Date published: 2017-02-07
Rated 5 out of 5 by from Convenient and easy to install For drinking, cooking and watering plants.
Date published: 2017-01-16
Rated 5 out of 5 by from Nice addition to the system Very nice, works well.
Date published: 2017-01-10
Rated 5 out of 5 by from Its great nothing beats aquasana
Date published: 2017-02-19
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