Zerowaterfilter Reviews 

5,233
TrustScore 4.5 out of 5

4.3

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Rated 5 out of 5 stars

Heard about ZeroWater via Square Mile Coffee Roasters, unfortunately they can’t stock ZeroWater products any more and so. I had to use their EU website instead. However zerwater were very efficient... See more

Rated 3 out of 5 stars

The product itself is fine. The delivery however isn’t. There was a slight delay, which is ok. However, after that the delivery company sent email notifications twice saying the recipient wasn’t home... See more

Rated 5 out of 5 stars

I had an issue with an older ZeroWater pitcher, and although it took some back and forth, the support team went beyond what they were obliged to do and resolved the problem very generously. I really a... See more

Rated 4 out of 5 stars

As a whole experience, it was good. But while ordering, it wasnt smooth. I have to go through some errors. Hopefully you will rectify this moving forward. The filters and the discount option is very g... See more


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4.3

Excellent

TrustScore 4.5 out of 5

5K reviews

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4.3

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(5,233)

722 reviews in the last 12 months

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Rated 1 out of 5 stars

Big disappointment

I am very disappointed with my purchase. I ordered a water pitcher with three filters. The first filter was fine because it had a plastic cover. The other two filters, however, only had a black plastic film that cannot be removed cleanly and completely. As a result, the filters cannot be screwed on properly, so unfiltered water flows into the pitcher.
I also bought the product for sustainability reasons. I was promised that I could send the old filters back to be recycled. When I contacted customer service yesterday, I found out that they no longer send out return envelopes. This means the old filters simply have to be thrown away with the regular trash—which is not sustainable at all.
I am truly disappointed.

June 13, 2026
Unprompted review
Zerowaterfilter logo

Reply from Zerowaterfilter

Good afternoon,

Thank you for your message. We are very sorry to hear that you are disappointed with your purchase.

Regarding the filters: this is, of course, not the experience we want you to have. We would like to look into this further and help you find a suitable solution. Could you please contact us directly by email and include your order details, as well as a few photos of the filters and the issue you are experiencing? This will allow us to assist you as quickly and accurately as possible.

Regarding recycling: our filter recycling programme is still available. However, we no longer provide return envelopes. You can still send used filters back to us for recycling, but you will need to use your own bag or box for the return shipment.

Please email us directly so we can review your case and assist you further

Rated 5 out of 5 stars

Amazing product totally unmatched by…

Amazing product totally unmatched by competitors for what it does so simply. The uk branch has closed down but European branch is just as good as the UK one was.
I mistakenly got an order that was 2 cartridges short, I contacted them and they promptly posted the remainder without problems. Very smooth and professional. I hope they stick around forever because I really appreciate their product and service 🙏🏼

June 8, 2026
Rated 1 out of 5 stars

Poor Customer Service and No Response for Defective Product

I contacted customer service regarding a defective filter, but I never received a response. Based on my experience, it appears that customer support is either unresponsive or nonexistent. This lack of after-sales service is very disappointing and makes it difficult to recommend this company.

June 15, 2026
Unprompted review
Zerowaterfilter logo

Reply from Zerowaterfilter

Good afternoon,

Thank you for your message. We are very sorry to hear that you have not received a response from our customer service team.

We always do our best to answer all emails carefully and in a timely manner, so it is very unfortunate to hear that this has been your experience. We understand that this is disappointing, especially when you are contacting us about a defective filter.

Could we kindly ask you to contact us directly by email once more, including your order details and a short description of the issue? We will be happy to look into this and assist you further.

Kind regards,

Rated 1 out of 5 stars

Terrible customer service

Terrible customer service. Not helpful at all at returning the filters.

March 12, 2026
Zerowaterfilter logo

Reply from Zerowaterfilter

Ofcourse we really like you to help. Please contact us directly so we can help you further. And we thought we resolved your issue .

Rated 5 out of 5 stars

Delighted with my filter

My order was shipped and delivered to Ireland so fast. I knew it was a good product as we have one at work. Absolutely brilliant having it at home, finally stop having a sea of bottles to recycle every week, many thanks and highly, highly recommend

May 29, 2026
Rated 2 out of 5 stars

Sour filter and smaller volume than advertised

Sadly the product didn't live up to my expectations at all due to the following:
- Brand new filter included with the pitcher produced sour tasting water, even after multiple refills. Tester measured 000 from our 242 tap water.
- Pitcher is not in fact 10 cups when including the filter. One fill is about 800mls, meaning we need more than 2 fills to fill out sodastream bottles. Not as advertised, and was not disclosed anywhere.

Due to the sour filter and the pitcher volume I will be requesting a refund.
Only 2* because the delivery was quick and easy.

May 26, 2026
Zerowaterfilter logo

Reply from Zerowaterfilter

I'm sorry to hear and ofcourse we really like to help you. Please send us an email directly? service@zerowaterfilter.com

Rated 3 out of 5 stars

Good intention, improvable details

I really like the product and the overall idea but there are several points of improvement:

1- For places where the tap water comes with a pretty bad quality, the filter lasts only 1 week. That's too high filter consumption and discard.

2- Why are the filters made of plastic and packed in plastic?? Non eco friendly that's a pity

3- What do you do with used filters? At the end it's a lot of plastic to the trash, because I've tracked the return bag in your website and it's always out of stock since months ago

May 27, 2026
Rated 5 out of 5 stars

everything almost perfect

everything was perfect! (delivery, the product itself and so on)
there's only one little thing: before using zerowater i did not know that the water is so clean after filtering that it appears to taste bitter. so i did a little research and found out: letting the water "breath" and adding a bit good salt will help. you should give customers a little hint on that 😊 and if you did and i was too blind too read it i'm sorry!😅

May 11, 2026
Rated 2 out of 5 stars

Misleading jug sizes

The filters work really great, but the measurements of the jugs are misleading. The 2.4 liter jug doesn’t even hold 2 liters of water because the filter takes up so much space. It would be better to label them with their actual usable size.

May 22, 2026
Rated 2 out of 5 stars

Corporate / scam vibes. Costly recycling, certification, taste degradation.

I have been using ZeroWater for a couple of years now.
Good design. Easy to use.
I jumped onboard partly because of their filtering claims and partly because of their recycling initiative. Send 10 used filters back, receive a discount on the next order.
Sending 10 back costs 9 euros. Discount is only 5 euros. Unless you can bring the used filters to the designated recycling location yourself, you are going to lose money.
NL has environment parks everywhere. We should be able to deposit them there and receive the discount. If ZeroWater is really serious that is.
Having the taste degrade after X liters may be legit, or a sign of the times. Inferior product that needs frequent replacement. Having only one company create filters for the jugs locks consumers into their ecosystem.
Quality claims are based on US 3rd party (NSF + IAPPO) verification, which may be fine. Regulatory bodies in the US, like the EPA, are pressured by industry lobbyist and have been gutted recently. They do not have CE EN 17093 certification.
These 3 factors make me seriously doubt ZeroWater.

I will be shopping around for a more trustworthy company with multiple, more credible 3rd party certifications.

May 29, 2026
Unprompted review
Rated 1 out of 5 stars

Zero customerCare …

I ordered a big pack of zero water refill filters 4 of them were damaged and emailed the company to tell them as I don’t want to use them if they have been tampered with or damaged. I did not hear back,
Poor poor Customer care sadly. They are not cheap and feel fleeced!

May 15, 2026
Zerowaterfilter logo

Reply from Zerowaterfilter

Good afternoon,

May I ask which email address you sent your message to? We have not received an email from you.

It is possible that your message was sent to another company, and that the filters were also purchased there. I understand that this can be confusing.

If you have any questions or if you would like us to assist you further, could you please email us directly at [service@zerowaterfilter.com](mailto:service@zerowaterfilter.com)?

Thank you in advance.

Kind regards,

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