These filters will not hit 0 PPM on the provided electronic tester that comes with the zero water pitcher.
349656
At the time that I bought this product it was on sale much cheaper than the Zero Water brand name filters. I had read the reviews and knew that they did not perform exactly the same, however it was surprising to find out just how poorly they did. Zero Water brand filters come pre rinsed or something, you can use them right out of the package. However these aquacrest filters need to be rinsed as they have this carbon dust that comes out of them almost like a Brita filter. And even after rinsing it several times running it through with over a gallon of water the PPM indicator that comes with the zero water pitcher still read at about 5 to 10 PPM at it's best. None of the four filters that I received ever hit 0, and one of them was faulty and did not filter anything better than 230 PPM and had a strange metallic taste to it which wasn't even present in the tap water by itself. I cannot in good faith recommend this product, but as with all non-standard parts such as these it's buyer beware.
1627388
Purchased items because GE indicated that GE FQK2J were the correct replacement filters for my under the counter unit that uses FQSLF filters.
Even though the larger filters fit into the housing no water flowed through the filters/they did not work - I had a Plumbing contractor attempt to replace my old filters when I had no luck and he couldn't get them to work either.  He told me to return them and said that the sensors in my older filter unit would not allow the new filters to work.  This must be GE's way of phasing out the old units and forcing consumers to buy newer model units so they can actually have filters that work!
995222
They don't let water through. The water stays atop my pitcher... How is this acceptable? Rip-off low quality product. A true shame.
279767
The meter doesnt lie and neither does the taste of the water. The pitcher/filter reads zero when my tap water was over 268 tds and tastes terrible. I even use the water in my soda stream and it has breathed new life into that appliance. Now the sparkling water tastes like sparkling water. Sometimes there is a lemony taste to the water that other reviewers have posted. For my local water, thats the time to replace my filter.
794230
very skeptical: the meter that came with the unit doesnt work
it takes for ever to fill this 10 cup pitcher--- I wasn't expecting that: it can take up to 20 mins to fill!

also, pretty upset that the meter doesnt work: t hat was kinda the whole point in getting it.

Filters are large and bulky-- if I have same issues as other reviewers in the next coming weeks/months of "smelly water"
I will go back to Brita-- I cannot believe how slow this takes to fill.  huge bummer

Update----
Called amazon customer service. They were not able to get me a new tester but they offered for me to send it back for a new one ( the whole pitcher system) which I didn't want to do. So they have me 50% off the order!
Iam very happy.  Up to four stars now

Five if it filled quicker
1020311
I have not complaints about the pitcher but the filtration is somewhat disappointing. The chemical taste of the tap water is still very apparent. I guess I'll try a ZeroWater next time.
2933321
They are filters, I do not own a water purity test kit, so I have to hope they are doing what the were designed to do.
1551083
I bought a 2 pack through my daughter.  They arrived, I installed a filter.  The filters I get from Walmart filter the water to zero right from the beginning, like they should.  The ones I ordered from Amazon register 64 from the git go.  Someone suggested my pitcher is contaminated.  I disagree.  I washed it before installing the filter.  I will NEVER order this from Amazon again.
2471130
ZERO Stars for Zerowater Pitcher & filtration system - NOTHING BUT A GIMMICK!

After dealing with Bogus/Fake PUR water filters (see updated Review link below), I started looking at other Sink & Pitcher-type of water filters.
1st, I have to mention that I live in Hawaii and our city water is atrocious and should never be used for Human or Pet Consumption, period! Not only is it full of solids, and unknown chemicals, but I have even noticed that the water will at times form some Foamy Scum, even AFTER being Double-Filtered! Taste is disgusting without any Filtration.
* Not Recommended - if you live in a 'HARD-Water" city/county municipality. If local Tap Water at over 250 PPM.
* BRITA is recommended for tap water with a rating of Below 200 PPM.
* PUR may be the best Consumer retail product, but with reports of vendors selling Fake filters (china) & being way too expensive, when having to replace every 2 to 3 weeks.
* Where to purchase - definitely recommend AMZ, and replacement service seems much Faster with a PRIME membership.
  Local stores -  Costco or Wally-World have very good RETURN Policies.

2nd, I did NOT purchase this Zerowater on AMZ, but at target store. After, ONLY 6 days on the New pitcher, I attempted to return it to
target, but they would NOT accept it, even though they are the ONLY ones that carry or have carried Zerowater, locally.
I still have the unit in the original packaging, including the hand H2O testing meter, in my garage, in case some other sucker, wants it; or as evidence in a class-action suit. I wish I had bought on AMZ ...

Bought this unit based on the following marketing Claims:
**** A Patented 5-stage dual-ion exchange filtration system - RESULTS: ZERO
**** Certified to remove lead, chromium and mercury - RESULTS: ZERO
*** Convenient 8-Cup space-saving design

Produced the Worst tasting H2O of any filter system that I have ever used, ie, Brita, Dupont,
Zerowater C/S - their only "solution" was to take it back to target, who then would NOT accept it.

About PUR - was the Best water filtration system I ever used, BUT, that was using Both a COMBINATION of a Sink Filter + a Pitcher, in order to get Acceptable results, with clean, good tasting water.
However, this became way to EXPENSIVE, in having to Replace BOTH filters every 2 to 3 Weeks, when they were suppose to last 3 Months! Again, the Pur C/S department does NOT exist.

https://www.amazon.com/review/R2G1H14SF8UR8E/ref=cm_cr_dp_title?ie=UTF8&ASIN=B0009HIQUA&channel=detail-glance&nodeID=228013&store=hi
4971283
The product is easy to install to use, though made of plastic it doesn't feel flimsy.
It comes with a good selection of adaptors and instructions that make it easy to install onto a regular faucet.

Unfortunately it does not work as advertised.
The water meter (gallon counter) keeps rolling upwards, even when no water is flowing.
Without this working, there's no way to tell if your filter needs changing or is operating properly.

I ordered this in Singapore via Amazon Prime Now.
Day 1 - Registered my product warranty after installation, and received a welcome message.
Day 2 - Noticed the fault and raised a ticket to DuPont customer support.
Day 7 - Followed up with Customer Support
Day 8 - Was told that no warranty would apply as I was outside of the US.

Very disappointed by the speed of response by DuPont and inability to provide warranty, even though they sell the product overseas.
Would not order again from DuPont.
1113796
Filter restricts water flow into brewing chamber; water in chamber does not reach full measurement even without filter.
4890826
While I actually love the zero water products I have had nothing but problems with the company about the filters, they are damaged in someway and they will not replace them. Customer Service is non existant. If you call the woman who answers will argue with you that you are not doing it right, asking to speak to her manager you get his voice mail but he never returns your calls. I am so diappointed with this product. The first filter that came with the package was great the replacements has bits of metal or something that float around in your water and they tell you "oh just take a tooth pick and pike it in the lining of the filter this will help"!!!! This is not what I paid for to poke holes in something then these black pieces of who knows what it is to float around in my water.
2027418
I am very disappointed in this product. This was the first replacement since my initial purchase of the Dupont faucet filter. I have double checked and this filter should work fine with the model I have, but from the get-go water streams through VERY slowly (and I do mean s-l-o-w). Also not sure if the filter is the problem or if I did something but now device this filter goes in doesn't light up when in use. In addition to painfull slow water filtration, the filter is noisier than the one that came with my initial purchase. Overall, I plan to go back to my previous pitcher filter approach, the Dupont filters are just not working quickly enough (they are really, really very slow - can't stress that enough).
2744420
Thank you.....these filters I need for my upright water (hot/cold spigots) dispenser are getting Very hard to find where I live....Lots of pitcher filters,but they don't work in my dispenser(I have had the dispenser since 2005). Does anyone else have this problem? The dispenser is Brita..... Thanks!!!!
1861077
Very disappointing purchase. After trying generic filters that either flooded my house or had no flow, I thought paying the extra money for the pricey Samsung model would do the trick. Not! This filter produced ZERO drinking water. After reading the reviews it appears that some of these may be knock-offs and not genuine manufacturer's parts. The packaging matched the photo on the Samsung website, but how do you know? The seller did not respond to emails.
656689
There is probably nothing wrong with these filters but, they are not filtering out the silt in our water. I just need to get a small particle filter.
72531
The chlorine test does not work. Testing highly chlorinated water has no effect. The nitrate reading is short by 50ppm when compared with api. Yes, 50ppm. This is a huge difference and could result in lack of necessary water changes. I am receiving a replacement from Amazon and will update my review after I try it.

UPDATE: The replacement is also defective. I tested 50% chlorine solution with no result and the nitrate test is same as before. It may be a defective batch but two in a row is too much.

It does not work for its intended purpose. That is why it received 1 star.