Customer reviews from aquasana.com
Aquasana - OptimH2O Reverse Osmosis + Clayrum 3-Stage Under Sink Water Filter System with Dedicated Faucet - Chrome
Average customer rating
4.4 out of 5
4.4
(1,471 Reviews)
Open Ratings Snapshot
Rating breakdown 1,471 reviews
5 Stars
958
4 Stars
316
3 Stars
68
2 Stars
56
1 Star
73
88%of customers recommend this product. 
(
941 out of 1,071
)
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Customer Reviews for Aquasana - OptimH2O Reverse Osmosis + Clayrum 3-Stage Under Sink Water Filter System with Dedicated Faucet - Chrome
Customer Rating
5 out of 5
5
Great water filters
on June 30, 2025
Posted by: Mistajb
from Queens New York
Verified Purchase:Yes
Installation was quick and easy. My filtered water. Tastes great!
Pros: Easy to clean, No odor, Clean taste, Long lasting filter, Good Water Flow, Durable, Nice faucet, Easy to install
I would recommend this to a friend!
Written by a customer while visiting aquasana.com
Customer Rating
1 out of 5
1
So frustrated.
on July 25, 2025
Posted by: Dan Cape Cod
from Cape Cod MA
I have two of these in both my homes. Do not buy this product! Every time you change the filters it’s a different experience. And they know they have this problem. Right now my system is down to a slow “filtered” trickle. Takes over a minute to fill up my small yeti. So frustrating. I’ll be tossing both and switching to another brand as soon as I do some research.
Pros: Clean taste
Cons: Slow pour
No, I would not recommend this to a friend.
Response from aquasana.comBy Aquasana Customer SupportJuly 26, 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.

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
Customer Rating
5 out of 5
5
So far so good
on August 24, 2017
Posted by: Flora
from San Diego, CA, United States
Verified Purchase:Yes
Brand was recommended by doctor. Selected the auto ship program for filters to receive the discount. We had the unit installed. Counter spout appears to be of good quality. So far so good. Water tastes good and flow is acceptable. Hoping unit will be reliable and durable.
Pros: Clean taste
I would recommend this to a friend!
Written by a customer while visiting aquasana.com
Customer Rating
4 out of 5
4
New User replaced an RO unit.
on September 1, 2017
Posted by: Gardner
from Austin, TX, United States
Verified Purchase:Yes
We purchased this system to replace an RO unit. The water quality is suitable to my wife who is the primary reason it was installed. The flow rate is good. We have opted for the 6 month filter replacement program. So far So good. Really need an additional 2' of tubing on each side for those with disposal etc.
Pros: Clean taste
I would recommend this to a friend!
Written by a customer while visiting aquasana.com
Customer Rating
4 out of 5
4
JUST INSTALLED
on September 13, 2017
Posted by: JIM SR
Verified Purchase:Yes
SO FAR SO GOOD WATER QUALITY AND TASTE IMPROVED REMOVED CLOUDINESS
Pros: Clean taste, Easy to install
I would recommend this to a friend!
Written by a customer while visiting aquasana.com
Customer Rating
4 out of 5
4
Replaced old unit with 5300+
on September 18, 2017
Posted by: Stew
from Coastal OR
I replaced our existing three stage filter with the upgraded model, 5300+ tonight. Simply pulled the two hoses off and inserted them in the new unit. They don't leak either. So It Can BE Done folks.
What is upsetting to me is that the advertisement wording says use your Smartphone to track the filters. Well watch that fine print, Smartphone equals IPhone only at this point. So I will have to wait for an Android app later. For now I put a piece of tape with today's date on it and in six months I hope to hear the unit beeping at us.
Love the quality of the water we now drink and I am impress with the flow rate on this new unit. I reserve judgement on it until the filter starts to get to the end of its life.
Pros: Clean taste, Long lasting filter, Durable, Easy to install
I would recommend this to a friend!
Written by a customer while visiting aquasana.com
Customer Rating
4 out of 5
4
New Installation
on September 21, 2017
Posted by: WJR46
from Oxford MI, USA
Verified Purchase:Yes
I installed the unit about 6 weeks ago & the unit is working as advertised and there are no leaks. I would recommend that Aquasana include additional 24" of both the red & white 3/4" tubing to allow for various under-sink placement of the system's components.
Pros: Clean taste, Easy to install
I would recommend this to a friend!
Written by a customer while visiting aquasana.com
Customer Rating
5 out of 5
5
Aquasana
on September 22, 2017
Posted by: Clay
from Orlando
Verified Purchase:Yes
I am very happy with this system. Only one thing I made a mistake with the color of the tap i should have ordered brush nickel instead of chrome and it just stands out at the kitchen sink. I don't know if there is any way to fix that.
Pros: Clean taste, Easy to install
Cons: Slow pour
I would recommend this to a friend!
Written by a customer while visiting aquasana.com
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