Ratings may include incentivized customer reviews.
What Customers Are Saying
The product reviews present mixed opinions. Some customers are satisfied with the water quality and taste, while others report issues such as filters not lasting as long as expected, developing unpleasant tastes, and potential quality control problems. Customers express frustration over the frequent need to replace the filters and concerns about potential planned obsolescence. Overall, the reviews indicate reliability and quality concerns that require attention.
Customer review summary generated by AI, including incentivized reviews.Great for bulk purchase of OEM filters
Quick sipping and brand new. I appreciate the bulk purchase option, as it can be a burden to buy too frequently. Will definitely buy again whenever needed.
From Culligan
The container! & looks.
I bought this about a week. Ago . Had better taste than the last 1.
From Culligan
Works great
Would RecommendI bought this last year at the advice of a friend, and I’m so glad I did. I have it in my bathroom for drinking and brushing my teeth. I can definitely taste the difference with this water filter. The filter has lasted me about 4 months. Great product.
From zerowater.com
Best option
I have used this product for over two years and have found it to be very good and saves me money and trips to the store for heavy plastic bottles
From Culligan
Zero total dissolved solids by measure
I have been using Culligan zero water for about 18 months. The water here locally has 120 to 135 total dissolve solids and zero consistently after filtration. Today it was five and gratefully new filters came. Thank you!
From Culligan
Filter problem
Would RecommendIva head one for about two years and I love the water, won’t use any other brand. But the only complaint I have is after a couple of fills the filter will just stop filtering and I have to bang it in the counter so the air bubbles come out or dump it out and replace the water, I don’t know how,why or what makes it happen. Just very annoying when it won’t let me fully refill my water
From zerowater.com
I have been truly happy with the zero water filter
I have been using the zero water filter for over a year and the water taste so much better than bottled waters
From Culligan
Inconsistent fit/never lasts as long as advertised
Would Not RecommendI live solo, so I am the only person using this pitcher. I track my water usage and it's pretty consistent day to day. I have had filters last a little over a week to about 25 days before the water starts tasting fishy or dirty and becomes undrinkable. What's extra frustrating is that my TDS meter never reads above 000, yet the filters still go bad well before the lifespan Zerowater claims they should have. Based on my usage and tap readings, they should last longer than they do. On top of...
From zerowater.com
We are sorry to hear of your dissatisfaction. Please call our Customer Service Team at 800-503-2939. We will be happy to assist.
If Your Filter Dies Fast,Your Water is the proble
This Isn't an Appliance; It's My Medical Equipment The Truth Other Reviews Miss: I see the complaints:"Filters only last two weeks!" "Too expensive!" I understand the frustration. But I need you to understand what that short lifespan actually means. My body is a chemical injury survivor. Childhood chemotherapy rewired my nervous system to detect toxins at levels "safe" for others. For me, tap water—and most bottled water—isn't just bad tasting; it's acutely poisonous, causing instant nueroinfl...
From Culligan
WORKS GREAT
We have used the ZERO water filter for about 10 years.
From Culligan
Defective Filters
I used to love my “Zero Water” pitcher/ filter system. However, I’ve been having problems for over a year with the filter only lasting only a month! It goes from (0 to 5-6 TDS) then continues to rise. Additionally, the water will often times not drain through the filter. I’ve contacted the company at least 3 times before & after Zero became Culligan. I was sent new filters (at my expense) but the new ones are doing the same thing. I believe they are what is called Legacy filters with the black l...
From Culligan
Very short life
It filtered well for about one month, perhaps 20 uses. I was really disappointed. It says it’s 35% longer life but longer than what? Does not seem cost effective if I need to purchase every month.
From Culligan
True zero water tested!
Very reliable compare to Brita this is true! I will recommend to my sisters and friends.
From Culligan
Not as expected
The new filter provides a reading of 007 instead 000 as expected. Anything above 006 ppm means time for replacement. Not what I expected
From Culligan
ZeroWater Filter – Starts Great, Ends Fishy
I’ve now gone through three separate ZeroWater filters, and each time, the pattern has been the same: fresh, clean-tasting water at first, followed by a noticeably fishy or metallic taste after just a couple of weeks of normal use. This isn't a subtle issue – the off-putting flavor makes the water undrinkable. I double-checked my tap water, storage conditions, and filter usage, and the result was consistent: something in the filter itself appears to degrade or leach after a short period. It’s...
From zerowater.com
Thank you for contacting ZeroWater. As the quality of tap water and consumption rates differ greatly for everyone, we use gallons to estimate filter l...
Now new filters. That was and isn’t needed.
Zero has always been good to our family, creating affordable filtration that works supremely well, producing great tasting water at affordable prices. But since the Culligan takeover, they’re not Zero anymore. Case in point we have the large glass countertop model that has worked perfectly for years. Now Culligan has changed the filters. Now you can still buy the old Zero filters but if you want to convert to the new filters, you have to buy an entire new container. All Culligan would have t...
From Culligan
Cleanest Water on the Market!
I have been using ZeroWater technology for over a decade now and have peace of mind knowing that I am drinking the cleanest and healthiest water I can get on the market. That is until the new Culligan/Zerowater systems came out. I recently upgraded to the new 33 cup Culligan filter system, and I am again impressed with the new filter specifications and operation of this new unit. TY Culligan and ZeroWater! Best there is, best there ever will be!
From Culligan
Major Filter Design Flaw
Of the 10 filters I've used with the 32 cup dispenser, only 2 have worked properly. Most will work for a week or two, and then stop filtering - or will filter only when the bottom of the filter is above the water line in the dispenser. So frustrating. I just purchased 4 more filters, and the first one won't filter at all. So frustrating. I want a refund so I can buy a product that actually works, but am not holding my breath.
From Culligan

Please call our Customer Service Team at 800-503-2939. We will be happy to assist.