Customer reviews from aquasana.com
Aquasana - OptimH2O Reverse Osmosis + Clayrum 3-Stage Under Sink Water Filter System with Dedicated Faucet - Oil-Rubbed Bronze
Average customer rating
4.4
(1,464 Reviews)
Rating breakdown 1,464 reviews
5 Stars
954
4 Stars
314
3 Stars
66
2 Stars
56
1 Star
74
88%of customers recommend this product.
(
933 out of
1,064)
Customer Reviews for Aquasana - OptimH2O Reverse Osmosis + Clayrum 3-Stage Under Sink Water Filter System with Dedicated Faucet - Oil-Rubbed Bronze
Customer Rating
1
Poor quality. Flooded kitchen and basement
on July 27, 2024
Posted by: Beware flooding
The mechanism used to attach the filter to the water pipe is very poor quality and not suitable for this type of water pressure. We had our filter installed with the help of a plumber friend and 3 days later the hose came off and completely flooded our kitchen and basement. I lost count after removing 50 gallons of water in the basement.
Cons: Not durable
No, I would not recommend this to a friend.
Response from aquasana.comBy Customer Support, Aquasana Customer Support, July 29, 2024
Thank you for bringing this to our attention. It’s important to us that our customers are more than satisfied and we would like the opportunity to resolve this issue immediately.
If you’re open to discussing your experience further, please message us, and we will work to provide a resolution soon. You may also contact us directly at 866-662-6885 Option 1, Monday through Friday from 8 am-5:30 pm CST, or email us at support@aquasana.com.
If you’re open to discussing your experience further, please message us, and we will work to provide a resolution soon. You may also contact us directly at 866-662-6885 Option 1, Monday through Friday from 8 am-5:30 pm CST, or email us at support@aquasana.com.
Written by a customer while visiting aquasana.com
Posted by: Sam P
from New York, NY, United States
Verified Purchase:Yes
Extremely slow water flow. Very difficult to install canisters. Spent a few hundred dollars to have a plumber install it. Now I have to pay him again to remove the system. Should pay for my plumbing costs!
Cons: Slow pour, Difficult to install
No, I would not recommend this to a friend.
Written by a customer while visiting aquasana.com
Customer Rating
5
Working great
on February 25, 2020
Posted by: Water filter person
from Vermont
I have had my water filter working for a month now. It's working great. Installation was very easy.
Pros: No odor, Clean taste, Good Water Flow, Nice faucet, Easy to install
I would recommend this to a friend!
Written by a customer while visiting aquasana.com
Customer Rating
1
Poorly made, NOT user friendly, and frustrating.
on September 7, 2025
Posted by: Nancy L.
from Sacramento, CA
I've had the Three Stage Max Flow under sink unit for almost exactly three years. Every single time we've had to change the filter its a new, frustrating ordeal. Never the same experience twice. It's become a joke in our household when the new filter arrives in the mail, because the dread for the installation saga is so real. I've even had my handyman do it on two occasions until he said he couldn't do it anymore, because he can't in good faith charge me for the actual time it takes him to get through the project. Now with this last change, the leaking from the number three filter won't stop, no matter how many times we remove and replace it. My husband suggested we need a new housing, clearly something inside is broken. The housing unit is cheaply made, entirely of plastic so that's not a bad assumption. I hesitate to spend another penny with this company, but I checked for replacement parts and naturally, there are no replacement options for this piece of the unit. So the entire thing now goes into the landfill, and I will find a more reputable company for my water needs. The only positive thing I can say is, at least I don't have to change those filters anymore.
Cons: Slow pour, Difficult to install, Not durable
No, I would not recommend this to a friend.
Response from aquasana.comBy Aquasana Customer Support, September 9, 2025
Thank you for bringing this to our attention. It’s important to us that our customers are more than satisfied and we would like the opportunity to resolve this issue immediately. We sell replacement parts over the phone and if you have warranty, we are able to provide the replacement parts for the cost of shipping. If you’re open to discussing your experience further, please message us, and we will work to provide a resolution soon. You may also contact us directly at 866-662-6885 Option 1, Monday through Friday from 8 am-5:30 pm CST, or email us at support@aquasana.com.
Written by a customer while visiting aquasana.com
Posted by: Vink
Verified Purchase:Yes
The filter is horrible. The water output is slow and the water starting leaking after a week. Had to take the filter out.
Cons: Slow pour, Difficult to install, Not durable
No, I would not recommend this to a friend.
Written by a customer while visiting aquasana.com
Customer Rating
1
forces filter replacement, so wasteful
on January 11, 2020
Posted by: chase lang
from ca
Installed in 2018 and did not realize there is no way to avoid replacement of filters before they are used. 2 people part time do not use the same amount of water as a family of 4. no way to adjust. Also periodically starts leaking
Pros: Easy to install
Cons: Filters need replacing too often, Not durable
No, I would not recommend this to a friend.
Written by a customer while visiting aquasana.com
Posted by: freqfrewqf
Verified Purchase:Yes
Based on your shipping policy I will not make further purchases.
Written by a customer while visiting aquasana.com
Posted by: nanaNA
Verified Purchase:Yes
Unfortunately, I sent it back. I had a plumber hook it up, waited the 24 hours then went to use it and did not work. Plumber came back and said everything was followed based on instructions and still did not work. I am sure most their products are good I just had no luck with the one I purchased.
No, I would not recommend this to a friend.
Written by a customer while visiting aquasana.com