ZeroWater Official Replacement Filter - 5-Stage 0 TDS Filter Replacement - System IAPMO Certified to Reduce Lead, Chromium, and PFOA/PFOS, 6-Pack

ZeroWater Official Replacement Filter - 5-Stage 0 TDS Filter...

ASIN: B00OZIOLB2COMMar 1, 2026
47
Trust Score
Poor
FAIL

Good for: Research only — consider alternatives first

Watch out for: suspicious-timing

Last analyzed: March 2026

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Total Reviews

94,843

On Amazon

Verified

100%

Good

a

Amazon Rating

4.4

Original rating

S

Savinoo Rating

2.2

Adjusted rating

Our Recommendation

NOT RECOMMENDED

BE CAUTIOUS - Read individual reviews carefully, especially 1-star and 3-star reviews, before purchasing.

Analysis Summary

  • MEDIUM RISK (Score: 47/100) ZeroWater Official Replacement Filter - 5-Stage 0 TDS Filter... has some concerning review patterns. Major Issues Found: 84% of reviews are either 5-star or 1-star, with only 16% in between.
  • Real products usually have more balanced ratings. Additional Concerns: Review dates show suspicious clustering patterns, which may indicate coordinated fake reviews. Low author diversity detected - some reviewers may have written multiple reviews. Positive Indicators: 100% of reviews are from verified purchases, which is good. 50% of reviews are detailed (over 100 words), which suggests genuine feedback..

Customer Reviews from Amazon

Most Helpful Review

Verified

"Like others I live in an area that had it's town water contaminated. Even now after they said it is clear and clean I still feel like I have to double and triple check. Zero water is definitely an improvement on the taste of my water. I prefer this type of filtration system because I feel like it actually works. The difference between this and Brita filter for me is not even close. I know Zero water has different models but I kinda prefer using this, especially since it has a better method for getting the random particles or whatever out of it. We did multiple tests comparing this to boiling water, and against just cold tap water and each time Zero water tastes better. I'm using this especially on my coffee machine water. I personally think I taste the difference. More so if you get a cheaper brand coffee like a store brand from a grocery store instead of beans from a better source.UPDATE - March 2025I decided to measure my pH, TDS, EC, Salinity, and Temperature of my tap water (straight from the sink). I also decided to measure this by the water filtration method we are using (Zero Water - pitcher)I did a couple of scenarios as in my baseline tap water cup. The second one was a current cup filled from a previous filter change. This means it had multiple refills of the water and our current pitcher being used. So probably like 3-7 pitchers already drank.The other test was from a new separate zero water pitcher that has had only one single drain using all 64ozs. I've labeled it as SINK, PITCHER A & PITCHER B each of the pitchers filters had just been changed and I wanted to have a separate comparison for each. I do want to see this tested again after the filter is ready to be renewed (as Zero water suggests it at 006ppm)I really am surprised that the basic tester Zero water gives you is actually good enough just to show you how much bad or good it is working. I did notice that the tested I used which had the ability to test multiple ways was by far a better method and way more reliable andrs accurate in my opinion. Below is the list of tests I have found for my own personal experience and test. I suggest you check it out yourself. Especially when you talk about the difference between the SINK water and the water from the SHOWER/Bathroom Sink. It'll open up your eyes as to why the bathroom was irritating the SKIN for some of the people in my household. I would recommend getting the AquSoft tester & the Zero water filter for drinking. Aside from reverse osmosis filters, this is hands down the best option for those on a budget and are very interested in their own health.-=-=-=-=-=-=-=-=-=-=-=-=CUP-1 = SINK (TAP WATER)Zero Water Tester probe325567ppm75.2°549ppm74.1°567ppm73.7°1156us/cm73.4°1155us/cm73.2°1151us/cm73.2°0.05% Salinity73.0°0.05% Salinity73.0°0.05% Salinity73.0°7.91ph73.0°7.79ph73.0°7.74ph73.0°-=-=-=-=-=-=-=-=-=-=-=-=CUP-2 = ZERO Pitcher AZero Water Tester probe000001ppm74.3004ppm74.8°002ppm75.0°006us/cm75.2°007us/cm75.3°01175.3°000% Salinty75.5°000% Salinity75.5°000% Salinity76.5°6.01ph75.5°5.86ph75.5°5.78ph75.5°-=-=-=-=-=-=-=-=-=-=-=-=CUP-3 = ZERO Pitcher BZero Water Tester probe000000ppm75.0°000ppm75.0°000ppm74.8°000us/cm74.8°000us/cm74.8°000us/cm74.8°000% Salinty74.8°000% Salinity74.8°000% Salinity74.6°6.30ph74.6°6.13p74.6°6.07ph74.6°"

zrnie
31 found helpful
Verified

Anonymous

These are great filters and fit my Zero Water pitcher perfecty. They do a great…

These are great filters and fit my Zero Water pitcher perfecty. They do a great job filtering out impurities, improving the taste of the water, and they last a long time.
2 people found this helpful
Verified

md

Same slow filtering problem as the other recent reviews. These filters typically get slower to…

Same slow filtering problem as the other recent reviews. These filters typically get slower to allow water thru as they get older but these filters don't work from the start. Second brand new filter from an 8-pack box.***UPDATE*** After reading on the website, it said to hold the filters on their side and shake it. Apparently air can get trapped in the filter and cause it to slow down the process. Worked great!!!
7 people found this helpful
Verified

steve

I had purchased a dozen brands of water filters, Zero is still on top. Do…

I had purchased a dozen brands of water filters, Zero is still on top. Do dispose the filter when the TDS meter tells you to because the water can quickly taste so bad that you don't even want to rinse your mouth with it.
Verified

zrnie

Like others I live in an area that had it's town water contaminated. Even now…

Like others I live in an area that had it's town water contaminated. Even now after they said it is clear and clean I still feel like I have to double and triple check. Zero water is definitely an improvement on the taste of my water. I prefer this type of filtration system because I feel like it actually works. The difference between this and Brita filter for me is not even close. I know Zero water has different models but I kinda prefer using this, especially since it has a better method for getting the random particles or whatever out of it. We did multiple tests comparing this to boiling water, and against just cold tap water and each time Zero water tastes better. I'm using this especially on my coffee machine water. I personally think I taste the difference. More so if you get a cheaper brand coffee like a store brand from a grocery store instead of beans from a better source.UPDATE - March 2025I decided to measure my pH, TDS, EC, Salinity, and Temperature of my tap water (straight from the sink). I also decided to measure this by the water filtration method we are using (Zero Water - pitcher)I did a couple of scenarios as in my baseline tap water cup. The second one was a current cup filled from a previous filter change. This means it had multiple refills of the water and our current pitcher being used. So probably like 3-7 pitchers already drank.The other test was from a new separate zero water pitcher that has had only one single drain using all 64ozs. I've labeled it as SINK, PITCHER A & PITCHER B each of the pitchers filters had just been changed and I wanted to have a separate comparison for each. I do want to see this tested again after the filter is ready to be renewed (as Zero water suggests it at 006ppm)I really am surprised that the basic tester Zero water gives you is actually good enough just to show you how much bad or good it is working. I did notice that the tested I used which had the ability to test multiple ways was by far a better method and way more reliable andrs accurate in my opinion. Below is the list of tests I have found for my own personal experience and test. I suggest you check it out yourself. Especially when you talk about the difference between the SINK water and the water from the SHOWER/Bathroom Sink. It'll open up your eyes as to why the bathroom was irritating the SKIN for some of the people in my household. I would recommend getting the AquSoft tester & the Zero water filter for drinking. Aside from reverse osmosis filters, this is hands down the best option for those on a budget and are very interested in their own health.-=-=-=-=-=-=-=-=-=-=-=-=CUP-1 = SINK (TAP WATER)Zero Water Tester probe325567ppm75.2°549ppm74.1°567ppm73.7°1156us/cm73.4°1155us/cm73.2°1151us/cm73.2°0.05% Salinity73.0°0.05% Salinity73.0°0.05% Salinity73.0°7.91ph73.0°7.79ph73.0°7.74ph73.0°-=-=-=-=-=-=-=-=-=-=-=-=CUP-2 = ZERO Pitcher AZero Water Tester probe000001ppm74.3004ppm74.8°002ppm75.0°006us/cm75.2°007us/cm75.3°01175.3°000% Salinty75.5°000% Salinity75.5°000% Salinity76.5°6.01ph75.5°5.86ph75.5°5.78ph75.5°-=-=-=-=-=-=-=-=-=-=-=-=CUP-3 = ZERO Pitcher BZero Water Tester probe000000ppm75.0°000ppm75.0°000ppm74.8°000us/cm74.8°000us/cm74.8°000us/cm74.8°000% Salinty74.8°000% Salinity74.8°000% Salinity74.6°6.30ph74.6°6.13p74.6°6.07ph74.6°
31 people found this helpful
Verified

jbird

➡️ Summary:These ZeroWater replacement filters now come with a screw-top instead of the peel-top, which…

➡️ Summary:These ZeroWater replacement filters now come with a screw-top instead of the peel-top, which is much easier to use. Filtration is effective, but in my area the filters clog faster than they used to and require regular maintenance to keep water flowing properly.➡️ Full Review:I purchased this 6-pack of ZeroWater replacement filters for my ZeroWater pitcher and immediately noticed a change from what I had used before. These arrived with a screw-top design instead of the peel-off seal, which is significantly more user-friendly. Installation is cleaner, faster, and doesn’t involve wrestling with stubborn seals.For reference, I use these filters with the ZeroWater 23-cup ready-pour dispenser, which I keep stored in my refrigerator to keep the water cold and reduce bacterial growth.When I first bought my ZeroWater pitcher, a single filter would last me about two to three months before needing replacement. Recently, that has changed. I’m now replacing filters roughly every month to month and a half. I don’t believe this is a product defect so much as a change in my city’s water quality, because the difference has been very noticeable.⚠️ To keep the filter working properly, I’ve had to tap it on the counter about 30 times every few days to dislodge whatever is blocking the filtration system. After doing this, the water flow improves again. When the filter isn’t blocked, water flows quickly through the filtration system without any issues. Based on my experience, this seems related to changes in my local city water rather than a defect with the filter itself.⚠️ One important tip: if you just replaced the filter and are still getting a reading above zero, run some water through the pitcher first and then re-measure. I’ve found that this often resolves initial readings that seem off right after installation.⭐️ Overall, these filters still do their job well, and I appreciate the improved screw-top design. Just be aware that filter lifespan can vary widely depending on what’s in your local water, and some maintenance may be needed to keep them performing at their best. I would buy them again, but I now plan replacements more frequently than I used to.
8 people found this helpful
Verified

ladybug

These are pricey but work well.

What Customers Talk About

Commonly Praised

waterfilterzerozero waterfilterspitchersalinityzerowater

Commonly Complained

zero waterwaterzerowater filtersfilterswater pitcherwalmartdirectly

Review Quality Analysis

Review quality helps identify authentic customer feedback. Longer, detailed reviews (50+ words) typically indicate genuine experiences, while high percentages of short reviews (under 20 words) may suggest incentivized or fake feedback.

Average Words

295

✓ Detailed reviews

Long Reviews

50%

✓ Good engagement

Short Reviews

13%

✓ Low brief reviews

Review Length Distribution

Authentic vs Brief Reviews

Average Word Count Gauge

Benchmark: 30 words = moderate, 50+ words = detailed & authentic

295

avg. words per review

Detailed (50+)
Moderate (30–49)
Brief (<30) — Suspicious

Interpretation: Strong indicators of authentic, detailed customer feedback.

Review Velocity

Review velocity tracks how quickly reviews are posted. Steady, gradual accumulation is natural, while sudden spikes or bursts (20+ reviews in a single day) may indicate incentivized campaigns or coordinated activity.

Average Per Day

0.01

Natural pace

Max in One Day

10

Normal range

Variable Velocity Pattern

Review posting rate varies over time. This may be linked to promotions, product launches, or seasonal events.

Rating Breakdown

This chart shows how customers rated ZeroWater Official Replacement Filter - 5-Stage 0 TDS Filter.... Products with authentic reviews typically show a bell curve with most ratings in the 3–4 star range. A heavily polarized distribution — many 5★ and 1★ with few middle ratings — can be worth investigating further.

5
76%
72,081
4
9,484
3
3,794
2
1,897
1
7,587

Key Findings

84% of reviews are either 5-star or 1-star, with only 16% in between. Real products usually have more balanced ratings.

Review dates show suspicious clustering patterns, which may indicate coordinated fake reviews.

Low author diversity detected - some reviewers may have written multiple reviews.

Warning Flags

2 flags

suspicious-timing

low-author-diversity

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