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
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: Red_____
Verified Purchase:Yes
We have highly chlorinated water. It smells like water from a swimming pool. The 3 stage filter seems to be okay but the water from my refrigerator with its single little filter tastes better. It makes me wonder if the carbon is doing very much to remove the chlorine smell and taste.
No, I would not recommend this to a friend.
Written by a customer while visiting aquasana.com
Customer Rating
1
I have never detested an item so much
on May 27, 2024
Posted by: LJC2
from Baltimore, MD
It's hard to believe how much I hate this thing. The destruction to my home, the constant problems and lack of functionality. I have no idea why I continue to try, because it doesn't seem worth it, I just wish it could serve the purpose I thought it would serve (reliably produce filtered water). There is a delicate connection from the water line to the system and if you so much as breathe near it, it will come loose and flood. Christmas Eve 2022 was spent in my basement with a shop vac all night, as my entire kitchen and basement flooded because of this thing. I had plumbers come three times to fix the connection and finally the third time they put in their own that was sturdy. Great. November 2023 my replacement filters come and the water just dribbles out of the faucet. I uninstall and reinstall them a half dozen times; nothing. I let it sit for six months because I'm just so frustrated at this point; I google this issue and there is a reddit thread about how this is a KNOWN ISSUE and to put a quarter in the bottom of the pre-filter casing. It worked. CAN YOU BELIEVE I DIDN'T USE THIS FOR SIX MONTHS BECAUSE THEY KNOWINGLY SEND FAULTY EQUIPMENT AND CHARGE YOU FOR IT AND I HAD TO PUT A QUARTER IN FOR IT TO WORK. So my latest replacement filters come and I cannot for the life of me unscrew the third filter. It has become such that I have so much anxiety every time I have to deal with this thing that I just avoid it and I have just been using a Brita pitcher for the last 6 months. I have never bought something so consistently problematic as this system. I hate it so much and would like reliable recommendations for a better company.
Cons: Slow pour, Difficult to install, Not durable
No, I would not recommend this to a friend.
Response from aquasana.comBy Customer Support, Aquasana Customer Support, June 19, 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
Customer Rating
5
Love it
on April 23, 2021
Posted by: Gina B
from Daytona Beach, Fl
Had an issue with one filter leaking at the top after troubleshooting, they sent me a new filter
Promptly. Love the quality of the water.
Promptly. Love the quality of the water.
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
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
Flow Rate!
on July 25, 2017
Posted by: QueenConsort
from Rochester, NY, United States
I bought this system as I was unhappy with my previous non-aquasana unit, mainly because the water came out in a trickle. I was impressed by the contaminant reduction of this system, but blown away by the flow-rate - it is so fast.
We now use filtered water to fill up stock pots for cooking, not just for drinking, because of how fast the water flows. Awesome!
Pros: Clean taste, Durable
I would recommend this to a friend!
Written by a customer while visiting aquasana.com
Posted by: Josephj
from Seattle, WA, United States
Verified Purchase:Yes
It leaked, I'm waiting on replacement parts. Takes about a week to get the parts
Pros: Clean taste, Easy to install
Cons: Slow pour
Written by a customer while visiting aquasana.com
Posted by: Suzy Who
from Vienna, Virginia
Verified Purchase:Yes
This filter was easy to install. However, the filter canisters leak at random, regardless of use. Went away for Thanksgiving to find the bowl I placed underneath it FULL! After 2 weeks of use, I am uninstalling.
Pros: Clean taste, Good Water Flow, Easy to install
No, I would not recommend this to a friend.
Written by a customer while visiting aquasana.com