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
(1,453 Reviews)
Open Ratings Snapshot
Rating breakdown 1,453 reviews
5 Stars
951
4 Stars
313
3 Stars
67
2 Stars
54
1 Star
68
88%of customers recommend this product. 
(
932 out of 1,057
)
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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
1 out of 5
1
Cause of a major house flood
on November 27, 2019
Posted by: Stressed and sad
from Long Island, NY
We purchased this under the counter Aquasana filtration system about three years ago. The water quality seemed good, and the only complaint initially was how difficult it was for me to change the filters.
However, 2 weeks ago we woke up to the sound of rushing water. Our kitchen floor was covered with water, and our finished basement had 5 inches of water. One of the Aquasana filters had ruptured and the water was rapidly pouring out. Our basement was completely destroyed, carpets, ceilings and walls. Our kitchen floor was destroyed. This experience was so traumatic, I cannot begin to explain the stress we are under.
Pros: Clean taste
Cons: 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 out of 5
1
drip, drip
on June 4, 2019
Posted by: Wanna drink fltrd water
from Illinois
It was installed by a professional but it barely runs. Haven’t had the patience to wait for a glass to fill up and am still using my Brita
Cons: Slow pour
No, I would not recommend this to a friend.
Written by a customer while visiting aquasana.com
Customer Rating
1 out of 5
1
Not a fan
on June 10, 2017
Posted by: MamaGil
from Oceanside, CA
Verified Purchase:Yes
Unfortunately, the main line leaked from the water input and after 3 install and uninstalls, I had to return the system. I was bummed because I really liked the water system.
Cons: Not a sound product
No, I would not recommend this to a friend.
Written by a customer while visiting aquasana.com
Customer Rating
5 out of 5
5
Owned 1 1/2 years.
on November 28, 2019
Posted by: Roadwarrior
from Irving TX
Works great, third filter replacement, no issues, no leaks. !00% satisfied.
Pros: Long lasting filter, Good Water Flow, 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
there is much scale after water boil
on October 8, 2020
Posted by: Lina
from Calgary
I'm disappointed the item. I just installed it in late Sept and found that there was so much scale after water boil! I had to use my previous water filter pot after.
Written by a customer while visiting aquasana.com
Customer Rating
5 out of 5
5
Easy to install
on February 8, 2021
Posted by: Waterman1112221211
from Minnesota
Verified Purchase:Yes
Easy to install. Make sure you follow the directions they make it easy.,
Pros: No odor, Clean taste, Good Water Flow, 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
A great unit to replace my old one
on February 18, 2021
Posted by: J.Fayle
from Fresno, CA
Verified Purchase:Yes
I needed to replace my outdated 2-stage GE filter which served under our kitchen sink for decades. Found this Aquasana Max Flow 3-stage to be a very nice replacement. It quite nearly fit the exact measurements of the outgoing one. Would recommend this particular model over the shorter cannister ones because of its faster flow capability.
Pros: Clean taste, 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
Defective Design - Leaks
on February 18, 2025
Posted by: Matt1234zxq
from MI
My kitchen has been flooded twice now because of this 3-stage max flow filter. The design of the unit itself is faulty and WILL fail. The brass coupling that connects to the filter does not last and will fail after about 6 months. This has happened to me multiple times. DO NOT RECOMMEND.
No, I would not recommend this to a friend.
Response from aquasana.comBy Customer SupportAquasana Customer SupportFebruary 19, 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 contact 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
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