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
(1,471 Reviews)
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)
Customer Reviews for Aquasana - OptimH2O Reverse Osmosis + Clayrum 3-Stage Under Sink Water Filter System with Dedicated Faucet - Chrome
Customer Rating
5
Easy to install. Purist water as expected
on January 18, 2020
Posted by: Dave Lilies dad
from Idah
It tastes like water. It gives me ease of worry in eliminating chemicals or harmful contents in the quality of my water.
Pros: Clean taste, Easy to install
Cons: Slow pour
I would recommend this to a friend!
Written by a customer while visiting aquasana.com
Posted by: Anonymous
from Dammasch State, Or
Verified Purchase:Yes
We have what's called "blue water". Residents from here all drink it, wash in it, and prepare their meals with it. Over time, one really does begin to notice. This system, myself saying again, is THE answer.
Pros: Clean taste, Long lasting filter, Good Water Flow
I would recommend this to a friend!
Written by a customer while visiting aquasana.com
Posted by: Retired nurse
from Florida
Verified Purchase:Yes
Simple installation. Great tasting water. Peace of mind knowing that every drop is safe for our family and pets.
I would recommend this to a friend!
Written by a customer while visiting aquasana.com
Posted by: Fashion Frank
from Conway SC
Verified Purchase:Yes
This product works great so glad I bought it !
I would easily recommend this to anyone who wants to improve the quality of the water. It’s affordable easy to install and taste great.
I would easily recommend this to anyone who wants to improve the quality of the water. It’s affordable easy to install and taste great.
Pros: Clean taste, Good Water Flow
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
Customer Rating
5
Overall experience
on January 2, 2019
Posted by: Just a regular joe
from Cheshire ct
Everything is as described. Easy installation, good quality and great tasting water. Nothing more to say 5 stars Aquasana
Pros: Easy to clean, No odor, Clean taste, Long lasting filter, Good Water Flow, Durable, Nice faucet, Easy to install
Cons: Slow pour
I would recommend this to a friend!
Written by a customer while visiting aquasana.com
Customer Rating
5
Overall satisfaction with system
on August 22, 2019
Posted by: Dawg
from Melbourne, Florida
So, the system is going ok. My husband installed it in one afternoon. The water tastes good and has no smell.
Pros: No odor, Clean taste, Good Water Flow, Nice faucet
I would recommend this to a friend!
Written by a customer while visiting aquasana.com
Posted by: Bob, the Artist.
from Texas
Verified Purchase:Yes
Very neat install and easy. Good looking and doesn't take up too much space.
Pros: No odor, Clean taste, Good Water Flow, Nice faucet, Easy to install
Cons: Slow pour
I would recommend this to a friend!
Written by a customer while visiting aquasana.com