Aquasana AQ 5300+ Under Sink Water Filter System with 0.55 Micron Filtration

Worried Customer: I got a plumber to install the unit who ran twice to the hardware store to get parts. Though I paid for the service, I am glad and happy with the end result. I trust aquasana because I had been a customer for at least 10 to 20 years with the counter top unit. I upgraded to under counter because it leaked. Only wish is that it should be made in USA.

Singapore on Oct 19, 2023

Bradley J Hay: We ordered this unit from Amazon Australia as it was recommended to us. We had the unit installed by a plumber and it was leaking from one of the housings. The company is in the USA so we cannot get parts covered in Australia.
We travelled to the US to see family and while there we contacted Aquasana and they were fantastic customer service and sent us another housing while in the US. We brought it back to Australia to replace the other leaking one. Unfortunately now the unit is leaking in the manifold and we are back where we started with a unit not working after paying for a plumber to install and shipping for parts in the US.

I believe the company is good and the customer service in the US is great. However I would not recommend buying this sort of item from international suppliers as I have spent more time now than the unit is worth ($350) and its still not working and cannot get parts covered here.

Australia on Aug 16, 2022

Won Tae Kim: I installed it to my new house to remove the refrigerator water line and it works great.
The water taste is good.
Before I used it, I worried about the water flow rate.
Normally the filter system gives poor flow rate.
But its flow rate is great and I'm very satisfied with it.

Canada on Mar 27, 2022

Chris L: This was easy to install. The tee valve could have been a better quality as there were metal shavings in it. Cleaned it out and no other burrs observed so used it. The tee valve does not have a shutoff. You need to read the installation steps to find what size drill bit to use to make the hole in the counter. It would have been nice to have a legend to tell you what specific tools and sizes to use as a quick reference or for those that may be a little less technically inclined. Otherwise, its easy to install. Flavour of water is great. I always liked my jug water filter from a major brand but this is way better. Ran 20 minutes after install before use per instructions. No weird aftertaste and no odours. Added a tee to connect my fridge water and ice maker. Same great taste from fridge as well and I don’t need to use the fridge filter. Has the most certifications that I saw for an under counter filter system. Highly recommended!

Canada on Feb 03, 2022

cm: I bought this Aquasana water filter system for my kitchen sink. For some reason, I was sent (and charged for) 3 units. Obviously, I contacted Amazon and made arrangements to return two units for refund.

In the meantime, I hired a plumber to install the unit. The plumber is a licensed, insured and an experienced plumber. He had the worst time installing the filters. Installing the unit was very basic - no problem there. However when he put in the filters they leaked. Because I had two extra units. He tried those filter (I was willing to take the hit). After trying 5 different filters (on a 3 filter unit) he was finally able to get it to stop leaking.

Fast forward 7 months…I knew I had to change the filters every 6 months. As luck would have it, I had a plumber out to fix an unrelated issue and I asked ‘can you change these filters for me as long as your here’. This was not the same plumber as did the install. I had purchased new filters last month and had them ready for install. This plumber also had the same issue as the first plumber…the new filters leaked. He couldn’t tell what the issue really was, because once the filters are in the housing, you can’t...

United States on Sep 16, 2021

Mathew M: I recently upgraded to this water filter from a Watts unit, and about 2 months in, I am very pleased with my purchase. I do have 2 caveats. One, one of the connectors on one of the cartridges had a damaged washer that caused the unit to leak when installed. Contacted Aquasana and they sent me replacements immediately. Second, I did notice a very slight aftertaste to the water for about 2 weeks after installing it -- a VERY slight bitter taste that was barely perceptible. It persisted even after prolonged flushing of the unit, but after about 2 weeks, it's gone entirely and the water quality is hands-down better than any other unit I have tried. Although this is a "high-flow unit," I have noticed that the water flow is quite a bit lower than the Watts unit this replaced -- but, for the increase in water quality and additional impurities this one takes out, it is well worth it for me.

United States on Jan 02, 2021

Amazon Customer: This has been one of our better "home improvement" projects of recent months. Previously we greatly underestimated the greater comfort & convenience, lower cost, and lesser environmental impact of having filtered water on tap.

Previously, we bought large quantities of bottled water -- and threw away large quantities of plastic. Occasionally, we used the filtered water tap on our refrigerator, but its low water flow and awkward location make it suitable only for occasional dispensing of small quantities. From the fridge dispenser, it can take several minutes to fill a coffee carafe, all the while holding the growing weight of the container under the tap. This is both time-consuming and uncomfortable for my arthritic hands.

We considered the pitcher approach, but balked at the hassle of continually refilling and carrying a jug back and forth to the fridge -- not to mention the lack of space in our fridge and my aforementioned discomfort in handling heavy containers. Plus, in my research I learned that pitchers don't filter as thoroughly or as quickly as plumbed-in filters.

Plumbed-in seemed the best solution for us, and we haven't regretted our decision a...

United States on Sep 30, 2020

P. Strong: Según este equipo tiene buenas reseñas por la calidad de filtración, y puedo afirmar que sí sabe bien, pero no quedamos a gusto porque el flujo es muy poca. Toma un minuto y medio llenar un litro, menos de 1/4 de la velocidad que debe ser. Tenemos muy buena presión de agua así que no hay problema por eso. Hablamos con servicio técnico de Aquasana y después de intentar varias cosas nos recomendaron devolver el producto. Así que lo devolví y pedi otra pero tenia la misma problema!

Parece ser que es un problema que han arreglado en nuevas versiones, pero las que tiene Amazon esta defectuosas.

No pierda su tiempo en pedir esto.

Mexico on May 19, 2020