My Aquasana AQ 4000 Counter Top Water Filter System Review

This review is about the Aquasana AQ-4000 Counter Top Water Filter. Click here to buy or read more.. 

At a glance, it’s the best I have so far, this Aquasana Counter Top Water Filter. I bought it after years and years of hearing and reading reviews about it (since 2009), but never really thought about it until recently in 2016. I am exposed to water filters and the stories about water because my late father was a water filter buff: I have been drinking filtered water ever since I was 14+ years old.

The water filter attaches to the tap’s faucet, and it’s a very easy step to do without getting a plumber in (one of the few reasons why I chose this model), and after installing it, I can tell there is a distinctive and significant difference in the water’s quality (sorry and thanks dad, I like this model better).

The first time I changed the filters, I have personally seen the difference in how dirty the water that we were drinking straight from the tap (sorry wife and kids) before this filter came into our lives. It’s great in filtering and trapping all the unwanted stuff in our water.

Aquasana Promises Ultimate Purity

And your home or office water, when filtered will instantly transform from being ordinary tap water into clean, extraordinary water. Lab tests show that normal pitchers filter around 5 contaminants, but theirs reduces 66 contaminants, which is more than 11x when compared.

NSF Certified Claryum® filtration technology independently tested and proven to remove over 97% of chlorine and chloramines. Also reduces:

  • Heavy metals like lead and mercury
  • Chlorine resistant cysts like giardia and cryptosporidium
  • Organic chemicals like herbicides, pesticides and VOCs
  • Pharmaceuticals like estrone and ibuprofen

>> Click here to buy or read more about Aquasana AQ-4000 Counter Top Water Filter <<

Some of the best things about the Aquasana AQ-4000 Counter Top Water Filter

  • Great Customer Support: they are super quick and efficient to respond and accommodate their customers. Whenever something is amiss or is not working, all I have to do is go online to their online chat, and bring it up to them and they’ll solve it immediately for me.

  • Amazing Water Quality: The water quality – I thought I wouldn’t be able to tell the difference – is distinctively amazing. It tastes clean, fresh and tasty (if I can call water tasty). There isn’t the usual slightly metallic/chemical after-taste – it actually tastes nice. I am very happy to have bought this counter top water filter and installed it in my house.

  • Super easy to install: this was one of the key elements that is important to me. Yes, even though I’m a guy, I’m not really good of a handyman – I tend to just pay people to do it/install stuff for me because I’ve had a long history of making a mess of handywork (I’m better at cooking: more on cooking with good filtered water in another article). It’s easy to install, very much of a plug and play water filter system. Just take it out of the box, read the instruction, plug into the faucet and install the system. In less than 10 minutes and you will get the pure, filtered water coming out, ready to drink or use for cooking and beverages.

>> Click here to buy Aquasana AQ-4000 Counter Top Water Filter directly from the manufacturers <<

Best Features

  • Very Affordable: this is another key element why I bought this Aquasana countertop water filter: it’s pretty affordable, and more affordable than those pitcher filters out there.

  • Takes up very small space: not only you can easily attach this Aquasana filter to your existing faucet in minutes, it is very compact and will only take a very small space on your counter top. This also makes it…

  • Very portable: you can easily bring it to another country (make sure you have a new filter installed), and easily have clean, pure and fresh filtered water wherever you go.

  • The latest model of the Aquasana water system has a reinforced housing, easy-to-change cartridges, and a new diverter.

  • Dollar-for-dollar heavyweight, the Aquasana AQ-4000 water filter effectively and efficiently removes more water contaminants than the others of the same price.

>> Click here to buy or read more about Aquasana AQ-4000 Counter Top Water Filter <<


Some customers say their machine leaks or is slow, but leaking is usually because the tube has loosened and slow flow means that there is too much sediments already, need to change filter (depending on how contaminated or dirty your water is).

I’ve been using it since 2016 at home, and all I get from it is still clean, fresh and tasty water. From my experience with installing, buying, refilling and drinking/using its filtered water, I likely will not replace this water filter system with other brands.

This is by far the best experience with water filter that I have bought and used at home. In Singapore, I have to replace the filters every six to eight months but I am happy to replace them to keep the healthy and clean waters coming to me and my family. and I highly recommend it to all my family, friends, colleagues and readers here.

Final Verdict

For its filtered water quality, price, size, portability, ease of installation, ease of changing filters: it is a heavyweight.

I don’t to worry about myself or my family and children drinking water that has traces of chemicals, toxins, contaminants; and it’s convenient and fast.

>> Click here to buy or read more about Aquasana AQ-4000 Counter Top Water Filter <<

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