Ratings may include incentivized customer reviews.
What Customers Are Saying
The ZeroWater filter system receives mixed reviews. Many users praise its ability to effectively filter water and produce clean, great-tasting results. However, a significant number report issues with the filters not lasting as long as advertised, often only 1-2 weeks before the water starts tasting off or the TDS reading rises sharply. Some users also experience a recurring fishy or metallic taste, making the water undrinkable. Overall, the product can be highly effective when working properly, but there are quality control and consistency issues with the filters that undermine the product's reliability.
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
Water as it was meant to be - pure and drinkable
Would RecommendWe have used the 12 cup Legacy series for several years. We avoid unfiltered tap water and bottled water at all costs. Our tap water generally registers between 250 and 400 particles, so our filters last between 4 weeks and 6 weeks. Many people complain that sometimes the filters don't drain properly. That is more than likely because they have a bubble of air trapped inside the filter. In that case, just remove the filter and turn it sideways and shake it as hard as you can for about 7 - 8 ...
From zerowater.com
Filters don’t last long
Would Not RecommendI have used zero water pitcher for years but ever since Culligan bought it the filters don’t last as long, they have gotten worse. I ordered filters from Zero. I am one person using the picture and it’s at .006 after. 2 1/2 weeks! Filters Use to last 2+ months.
From zerowater.com
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
Please call our Customer Service Team at 800-503-2939. We will be happy to assist.
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
I'm done too
Would Not RecommendThese filters only last a couple weeks before water starts to taste fishy. Also lots of carbon particles floating in reservoirs. I am the only one in home. For the price of these filters they should last alot longer!
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.
I’m done
Would Not RecommendBeen buying these for years and the combo of the ridiculous price and the honest fact that these don’t last nearly as long as they used to—I’m done. Not sure what happened over the years but you’ve lost my business.
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.
WORKS GREAT
We have used the ZERO water filter for about 10 years.
From Culligan
Adding to what everyone has said
Would Not RecommendPurchased new pitcher and filters on Oct. 2. Water tasted fine and had no issues. It's Oct. 17 and the water tasted sour. I wished I read the reviews, but it was a sign that I needed to change the filter and the water tester did read 006. There's only two individuals using the pitcher and we are not home for the majority of the day. We used the water primarily for morning coffee/tea and pets water bowl. This is not a sustainable product. I will be searching for a better product after I use up my...
From zerowater.com
Thank you for taking the time to post a review. We are sorry to hear of your dissatisfaction. Please call out Customer Service Team at 800-503-2939, w...
Quality notably declining
Would Not RecommendI've used these filters for 6-8 years, they used to be so good. But for the past year or so, every time I get them, they last for shorter and shorter time. They discontinued the twist off cap for a soft plastic, which started out ok but they have also gotten worse. The latest batch that I purchased leaves glue and plastic residue all over the top. Just very frustrating, it's pushed me to make the leap to a under-sink filter instead of using these.
From zerowater.com
Thank you for taking the time to post a review. We are sorry to hear of your dissatisfaction. Please call out Customer Service Team at 800-503-2939, w...
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
Moisture
Would Not RecommendLike to know why filters I've been buying have moisture inside. They should not have any type of water inside. This deteriorate the filters while in atirage.
From zerowater.com
Thank you for taking the time to post a review. We are sorry to hear of your dissatisfaction. Filters are rinsed with purified water before they are p...
Filters dont last as long as old zero water filter
Ever since the new company took over Zero water, the filters do not last as long before needing to be changed. It used to last 2 months before getting to a "6". The newly designed filter shot up to over 100 reading at a month and a half! The built in meter also is faulty. It is constantly wrong and says a brand new filter is bad, while my old zero water meter says its at zero. The meter is easily damaged by water. It has brown residue all inside the battery compartment. Please bring back the...
From zerowater.com
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

We are sorry to hear of your dissatisfaction Please call our Customer Service Team at 800-503-2939. We would like to learn more about your experience....