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Culligan with ZeroWater Technology Reviews 

3,547
•
TrustScore 4 out of 5

4.1

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Review summary

Created with AI, based on recent reviews

Evaluating 389 reviews, reviewers had a great experience with this company. Customers frequently praise the fast delivery service, noting that orders arrive promptly and well-packaged to their homes. People are also deeply impressed by the exceptional quality of the water filtration systems, which effectively remove impurities and make tap water taste clean and refreshing. However, some people mentioned that the replacement filters had a surprisingly short lifespan and sometimes developed an unpleasant smell after just a couple of weeks of daily use. Consumers also noted that securing future replacement parts became rather complicated since the business decided to close its direct distribution operations in the region.

What people talk about most

Product

Reviewers highlight positive aspects of product, expressing satisfaction with the clean, great-tasting water... See more

Quality

People report positive experiences with quality, highlighting the exceptional water clarity and great taste... See more

Delivery service

Consumers find delivery service to be efficient, with reviewers frequently highlighting rapid, next-day... See more

Service

Users describe positive interactions with service, highlighting fast and efficient delivery as well as... See more

Price

Customers consistently note ambiguous experiences with price, with many reviewers reporting that the filters... See more

Reviews shaping this summary

Rated 4 out of 5 stars

On the whole I do think the new Culligan water filter is an improvement on the older Zero version. The TDS meter is easier to read, the jug doesn't spill like the older version and it is easier to cl... See more

Rated 4 out of 5 stars

This is better than the old Zero version which was always difficult to clean and checking the filtration level was a pain. This new design is studier and the filtration indicator is better but the ju... See more

Company replied

Rated 5 out of 5 stars

Ive been using zerowater for about 4 years now. Amazing company with a fantastic product. My water reading is around 187 from the tap, Absolute joke! Once its filtered reading is 000. Each filter last... See more

Company replied

Rated 5 out of 5 stars

Thank you for responding so fast to my order for filters. Regretfully DPD did not deliver my filters to my home but decided I was not at home, without the bother of ringing my doorbell. I’m seriousl... See more



Company details

  1. Water Filter Supplier
  2. Water Purification Company

About Culligan with ZeroWater Technology

Written by the company

Culligan with ZeroWater Technology is the new standard for kitchen-top filtration, engineered to filter 99.9% of dissolved solids and harmful contaminants including lead, total PFAS (forever chemicals), pharmaceuticals, pesticides, and more.

Our range of premium jugs & dispensers are perfect for all households - so whether you're looking for a small jug for solo sipping, or a larger dispenser for your busy kitchen, we've got you covered.

We don't hide behind averages or talk in generalisations, which is why all our performance data & testing is available for everyone to see. After all, we're proud of our products, and want you to be safe in the knowledge that we do exactly what we say.

Why Culligan ZeroWater?

Written by the company

Cleaner Water starts at Zero
Our advanced 5-stage filters are engineered to filter 99.9% of dissolved solids and harmful contaminants including lead, total PFAS (forever chemicals), pharmaceuticals, pesticides, and more.
Backed by science, for all to see
We don't hide behind averages or talk in generalisations, which is why all our performance data & testing is available for everyone to see. After all, we're proud of our products, and want you to be safe in the knowledge that we do exactly what we say.

30-day guarantee

We reduce your water to Zero, or your money back

We reduce your water to Zero, or your money back
All our jugs & dispensers come with removable TDS water meters, allowing you to see for yourself exactly what's in your tap water.

Our 5-stage filters are guaranteed to remove virtually all total dissolved solids, but if we can't get your water down to 000, then you're free to send your product back for a full refund


Contact info

10% off your first order

Use the code CLEAN10 for 10% off your first order of our water filters

4.1

Great

TrustScore 4 out of 5

4K reviews

5-star
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1-star

Asks customers to review

This company invites their customers to review, whether positive or negative

Replied to 40% of negative reviews

Typically replies within 24 hours

How this company uses Trustpilot

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4.1

All reviews

(3,547)

377 reviews in the last 12 months

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Rated 2 out of 5 stars

Misled

I’m not really happy with this company. I bought a whole water filtration system which wasn’t cheap and then the company said that they were packing up and leaving the UK thankfully I bought a few filters when I bought the jug. I really feel that I was misled as I’d have to buy any future filters from the USA. God knows how much that will cost.

February 17, 2026
Rated 1 out of 5 stars

⭐ 1 star

⭐ 1 star

My experience with Culligan Water has been absolutely dreadful.

The returns and refund process has been abysmal from start to finish. My return was delivered on 29 August, and it is now 11 September and I still have not received my refund. To make matters worse, I am now being told they cannot even track or locate the returned package, despite it having been delivered.

Customer service has been incredibly poor throughout. The person handling my case has been unhelpful, and trying to get a straightforward answer or resolution has been unbelievably frustrating.

For a company of this size, the whole process has been completely unacceptable. Returning an item and receiving a refund should not be this difficult.

Based on my experience, I would strongly recommend avoiding this company. I certainly would not buy from them again.

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

The filters only last a few weeks since…

The filters only last a few weeks since the company has changed hands who make the filters. They used to last 2 months easy not no more so I won't be buying any more I've changed companies and have got a far better deal that lasts my filters for 3 months at a time

January 22, 2026
Rated 2 out of 5 stars

Brand Dodging, Short Filter Life, and a Pre-Filter Workaround

Company Rebranding & Review Evasion
ZeroWater has repeatedly shut down and rebranded its web presence in the UK. After initial purchases, the site migrated to Culligan ZeroWater, rendering older pitchers obsolete and forcing customers to buy new equipment. Months later, they allegedly pulled out of the UK market and closed the site again, only for a new domain to pop up selling filters with the exact same site layout and saved user login credentials. Constantly shifting domains appears to be a tactic to abandon poor Trustpilot ratings driven by complaints over failing filters.

Performance & Lifespan Issues
* Short Lifespan: In a moderate tap water area (110–150 TDS), a single filter lasts only about two weeks before degrading.
* Capacity: ZeroWater filters are rated for just 75 liters, compared to standard Brita filters rated for 150 liters.
* Taste Profile: While the 0-TDS filtration is thorough, the resulting water chemistry can react with dental fillings, leaving an unpleasant metallic taste in the mouth.

Extending Filter Life
To stretch the lifespan of the costly ZeroWater filters, pre-filter your tap water using a Brita hard water filter first. This drops the baseline reading down to roughly 90 TDS before it hits the ZeroWater pitcher, effectively extending the ZeroWater filter's lifespan from two weeks to 3–4 weeks.

February 17, 2026
Rated 1 out of 5 stars

Quality has gone down recently!

I had a similar experience as others in this thread who gave 1 star where the filters are not lasting as long so I asked for a refund both through Amazon & Zero Water & they both blew me off!

July 22, 2026
Unprompted review
Rated 1 out of 5 stars

CONNED BY CULLIGAN

I bought their new zero water filters that they advertised as lasting 30% longer than the older version. NOT TRUE! They lasted 50% less than the original and I bought at least over 20 filters. I called customer service and they either hung up or said that I needed to send an email. Nothing, they just fobbed me off. Interestingly THEY STOPPED MAKING THE FILTERS AND SELLING THEM. They seemed genuine in the beginning but definitely conned people to get rid of the filters. HIGHLY DISAPPOINTED. WOULD NEVER TRUST THEM AGAIN. THEY SHOULD BE SERIOUSLY FINED. Some people did get their money back but I guess I was one of the last fools they ignored. DON'T TRUST...LOOK ELSEWHERE. Also Culligan only respond if you are considering a rebate. Don't bother if you are just white washing the situation. I'm writing this now because they sent me a request to review.

February 17, 2026
Rated 3 out of 5 stars

Filters

Love the actual product however we were getting through 1 filter every 2 weeks as our water is so bad , making it more expensive than bottled water

December 29, 2025
Rated 1 out of 5 stars

Bunch of corporate idiots

Bunch of corporate idiots,

As per usual the ensh*tification of a once good product takes over.

Their jug designs are absolute crap, I wrote about this before they are such a poor design.
I got a reply about how delighted they were to have designed a new range, they sold some of these Jugs through their UK online site then 2 weeks later they changed their name from zero water to culligan and pulled out of the UK market completly.

I'm getting absolutely sick of these greedy corporate company idiots, making tactical moves like trying to make a quick buck knowing full well they are days/weeks away from making plans like exiting the UK market.
Now I have nowhere to buy bulk filters and have to buy 1 or 2 and pay £20 for 1 filter or £32 for 2 filters all the while, some other corporate door knob middle man creams of the top.

SHAME ON YOU Zero Water/Culligan SHAME ON YOU!!!

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

DO NOT trust

Several of the filters were defective straight out of the box — not used or expired, brand new. Instead of reducing dissolved solids, they made the water worse: I could taste something off, and my TDS meter confirmed it, with readings higher after filtering than the tap water going in. After drinking it, I got sick. A water filter that contaminates the very water it's supposed to clean is a serious problem, and it's not something a buyer can detect without testing every new filter themselves. I would not trust these with my family's drinking water.

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

No more, quality dropped significantly

We've been using zerowater filters for years. Recently, after the name culligan appeared on the filters, the quality dropped to unacceptable levels. Lifespan dropped from 5-6 weeks average, down to 2 weeks!
Filters actually feel lighter than before. Sorry, but we've ordered our last batch of filters.

May 12, 2026
Unprompted review
Rated 5 out of 5 stars

The best domestic water filters…

The best domestic water filters available in my opinion - when purity is essential, in my case carnivorous plants and aquarium fish. Also having the ability to have a constant read of PPM rather than the usual time based reminders. Pity that they are closing in the UK but hope to restock with Amazon when necessary

February 17, 2026

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