Zero water filter reviews

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BEST OVERALL
Sale 18%
ZeroWater ZD-018 Water Filter Pitcher

The ZeroWater ZD-018 is our best overall choice because of its effectiveness at removing a wide variety of impurities and the fact that it offers large storage capacity for the filtered water.

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ZeroWater was launched in 2003 and since then they’ve produced a wide range of filtration units. They’re best known for their inexpensive and portable water filter pitchers which seem more effective at filtering water than other brands as they remove the most contaminants. 

This review evaluates several of these ZeroWater filter pitchers and we will outline the good and the bad about them to keep you well informed before making a buying decision. 

1. ZeroWater ZD-018 Water Filter Pitcher

BEST Zero water Filter
Sale 18%
ZeroWater ZD-018 ZD018, 23 Cup Water Filter Pitcher with Water Quality Meter
  • Included Components: Zerowater Zd-018 23-Cup Water Dispenser And Filtration System;Electronic Tds Water Testing Meter;1- Zerowater Filter Cartridge That Removes Contaminants That Cause Water To Have An Unpleasant Taste

Disclosure: we may receive commissions from purchases made via our links at no additional costs to you.

Pros

  • Removes more than 99% of dissolved solids
  • Also removes a wide range of other contaminants
  • Large capacity pitcher suitable for big families or an office
  • Easy to set up and to use
  • Comes with a TDS meter

Cons

  • Water may taste slightly sour
  • Some healthy minerals are removed during the process
  • Not quite durable – spout and lid can break easily
  • Tends to leak around the spout and the button
  • Slower filtration speed and the filters have a short lifespan

Design

The ZD-018 features a nicely styled jug with a blue finish that would look fine in any kitchen. It’s slightly larger (measures 14.96 x 5.51 x 10.63 inches) than the other two models – it doesn’t take up much countertop space, but it’s wide hence it may not fit inside most refrigerators. 

Although it’s lightweight (3.96 pounds), moving it around is a bit challenging especially when filled with water because it doesn’t have carry handles. The pitcher and the filter are made using sturdy plastic material but the other parts seem flimsy and not durable.

A few users reported that the spout breaks quickly or starts leaking within a short time, making the pitcher unusable and you can’t fix it. You have to replace the entire unit.

The dispense button is also weak. It has a narrow white plastic stem that holds against a heavy spring  – it tends to snap off and some even mentioned that it leaks water from the bottom section. The lid is another part that’s a bit flimsy. It sits loosely and breaks easily. 

Filtration Performance

The ZD-018 is an NSF 42 and 53 certified 5-stage filtration system that utilizes different media to effectively remove contaminants. It’s able to remove a very wide range of contaminants and it’s very efficient because it reduces several major ones to almost zero.

The first stage is a coarse filter screen that captures fine particles and sediments. The second stage is a distributor which helps disperse the water evenly across the whole width of the filter to maximize contact time and facilitate a more effective filtration. 

The third stage is a combination of activated carbon and oxidation reduction alloy, together which remove 99% of chlorine, chloramine and heavy metals like mercury and lead. Hydrogen sulphide and chromium are equally filtered out at this stage, which very few pitcher filters on the market are certified to reduce.  

Stage four features an ion exchange resin which is what makes ZeroWater’s filters stand out from the rest as the resin completely removes all the dissolved solids present in the water. It’s very effective such that even TDS levels as high as 500 ppm were able to be reduced to zero. 

The final stage includes an ultrafine screen and non-woven membrane which help trap the remaining fine particles suspended in the water.

The downside of this 5-stage filtration system is that it leaves the filtered water slightly acidic because it strips out all the dissolved solids including essential minerals. Thereby, the water sometimes has a sour taste which several people didn’t like but the large majority seemed okay with it.

Capacity

The pitcher of the ZD-018 can hold up to 23 cups of filtered water. That’s enough capacity to cater for a large family or even a small office. Dispensing the water is easy and quick – you just press the push-button on the front, hold it in place and then the water flows out of the spout. 

Unfortunately, the spout is positioned with its opening facing backwards, so it sprays backwards making it a bit challenging to position a glass or cup without getting water everywhere. 

Another downside is that the filtration process is slower than other comparable systems (like Brita or Pur). It can take 30 to 60 minutes to fill up the pitcher because it relies on gravity hence water moves through the 5 filtration media so slowly. 

Besides that, the filling chamber is smaller than the collection pitcher hence you have to refill it a couple of times in order to filter enough water to fill up the bottom pitcher. It’s a bit inconvenient since it takes about 20 minutes to filter the water after every refill.

Setup and Maintenance

This unit comes with everything you need to get started. It’s simple to set up and the instructions are clear. Cleaning it is equally not that hard.  However, you will be changing the filter more often because it appears to have a shorter lifespan than what they say.

Depending on the level of TDS in your water, you may have to replace it on a monthly basis. ZeroWater guide says between 3 to 5 months but many users reported that it only lasts 2 to 3 weeks after which the water begins to taste weird.  

The other issue is that there’s no way of knowing when to change the filter. You have to test your water regularly using the TDS meter to gauge when it’s best to change the filter. ZeroWater provides the TDS meter in all their water filter pitchers and recommends to replace the filter when it reads 006 ppm. 

Should you buy the ZeroWater ZD-018 water filter pitcher? 

If your water has high TDS levels, then this would be an ideal water filter to consider. It’s an option you can check out too if you have a large family and need a filter that can get rid of a wide range of contaminants. The major problem you will have with it is durability.  

2. ZeroWater ZP-010 Water Filter Pitcher

ZeroWater ZP-010, 10 Cup Water Filter Pitcher with Water Quality Meter
  • 10 CUP WATER FILTERING PITCHER: You'll always have cleaner, pure tasting water on hand with our BPA-Free, water filter pitcher in your fridge. The included, free water quality meter lets you test your water, so you never have to wonder about its quality.
  • FIVE STAGE WATER FILTRATION: Unlike many water filters & pitchers, ZeroWater filters use 5 stages of filtration, to bring you cleaner, better tasting water. Instead of carbon filtering only, our filters use Ion Exchange Technology to reduce contaminants.
  • NOT AN ORDINARY WATER FILTER: ZeroWater filters filter water in 5 stages, are NSF certified to reduce lead and other heavy metals. Zerowater removes 99.6% of total dissolved solids, 2X more than the leading brand (tested by independent lab).

Disclosure: we may receive commissions from purchases made via our links at no additional costs to you.

We picked the ZeroWater ZP-010 as the best option for small families because it’s pitcher has a decent capacity and it’s compact too. Its filtration performance is at par with the ZD-018 but the design is different – there are some little tweaks meant to make it more convenient to use. 

Pros

  • Great filtration performance like the rest
  • Decent capacity suitable for small families
  • Compact and lightweight design
  • Easy to set up and to replace the filter

Cons 

  • The pitcher and push-button can break easily
  • Pouring water can be messy 
  • Filter doesn’t last long
  • Slow at filtering water and needs frequent refilling

Design 

The design of this ZP-010 model is simple but appealing.  The unit is relatively compact (measures 11 x 5.93 x 11.63 inches) hence ideal for small countertops. It can fit inside the fridge but not on the top shelf as it’s 11.63 inches tall. 

Carrying and moving it is easy. It’s not heavy when filled with water (weighs about 8 pounds) and it has a sturdy handle fitted with a rubber grip that feels comfortable and doesn’t slip out of the hand when pouring water.

The overall build quality is not good though.  The pitcher is a thin BPA-free plastic that can break if it’s knocked over when empty. The push-button for the spigot on the bottom of the pitcher is also weak plastic that breaks easily leading to leaks. 

One upside though, the filter screw into the top section of the pitcher and a rubber O-ring has been included to ensure a tight seal, so there’s no leaking of unfiltered water from the top reservoir into the pitcher. 

Filtration Performance

The ZP-010 utilizes ZeroWater’s 5-stage filtration system so its performance is the same as the ZD-018 model. It will effectively get rid of all the TDS and a wide variety of other contaminants. 

Capacity

The pitcher holds up to 10 cups of filtered water at a time which is a decent capacity for small families of 2 to 4 people. One convenient thing is that you can pour the filtered water while there’s some unfiltered water in the top chamber still getting filtered – the pitcher has a ready-pour design that ensures the filter is completely sealed to the top.  

However, the design of the pour spout appears to be terrible. The lip on the lid that covers it doesn’t budge hence causes the spout to pour a wide stream that often splashes outside the glass ending up onto the counter or the floor. Moreover, the lid doesn’t stay on –  you have to hold it in place when pouring, otherwise, it falls off along with the water. 

The rear spigot below the handle is a thoughtful little extra feature that’s meant to allow you dispense water without lifting or removing the pitcher from the fridge. Unfortunately, it appears not to be useful because it takes longer to fill a  glass as the water only trickles out of it.  

The filtration process is equally very slow like in the ZD-018 model and the upper reservoir is tiny requiring 3 to 4 rounds of refilling and 30 to 45 minutes to fill the pitcher when it’s empty. You have to remove the entire lid as well every time you fill the reservoir which is time-consuming, plus there were complaints that it’s challenging to get it off and put it back on. 

Setup and Maintenance

Setting up the unit is quick and easy – you just need to screw the filter into place. Cleaning the unit and replacing the filter is simple too. However, this model also requires frequent changing of the filter because it has a lifespan of 25 to 40 gallons under normal levels of TDS. 

Should you buy the ZeroWater ZP-010 water filter pitcher?

This is a good option to consider if you have a small family and don’t mind the frequent refilling and design flaws of the pitcher’s pouring spout. The TDS meter is as well included in the package. 

3. ZeroWater ZP-006-4 Water Filter Pitcher

Sale 23%
ZeroWater ZP-006-4, 6 Cup Water Filter Pitcher with Water Quality Meter,White and Blue
  • 6 CUP WATER FILTERING PITCHER: You'll always have cleaner, pure tasting water on hand with our BPA-Free, water filter pitcher in your fridge. The included, free water quality meter lets you test your water, so you never have to wonder about its quality.
  • FIVE STAGE WATER FILTRATION: Unlike many water filters & pitchers, ZeroWater filters use 5 stages of filtration, to bring you cleaner, better tasting water. Instead of carbon filtering only, our filters use Ion Exchange Technology to reduce contaminants.
  • NOT AN ORDINARY WATER FILTER: ZeroWater filters filter water in 5 stages, are NSF certified to reduce lead and other heavy metals. Zerowater removes 99.6% of total dissolved solids, 2X more than the leading brand (tested by independent lab).

Disclosure: we may receive commissions from purchases made via our links at no additional costs to you.

The ZP-006-4 pitcher has a smaller capacity than the other models which makes it the best option if you are single or need a small water filter pitcher. Apart from this and the slight difference in design to the ZP-010 model above, the filtration system and performance is still the same. 

Pros 

  • It’s able to remove more than 99% of TDS and other contaminants
  • Has small capacity ideal for one or two people
  • Filters the water fairly fast
  • A compact design ideal for small spaces
  • Sturdy overall construction 

Cons 

  • A smaller top reservoir that requires frequent refilling
  • The top reservoir tends to slip when pouring water
  • Challenging to set up the filter
  • It’s difficult to remove the lid to add water

Design 

The ZP-006-4 is a more compact unit than the rest, measuring only 10.50 x 4.87 x 9.50 inches. It’s slim enough to fit in any fridge’s door pocket. It’s a little heavy though but the build quality seems okay as the pitcher, the lid and handle are made of fairly thick plastic. 

Capacity

With only a 6 cup capacity, this model is a great fit for a house of 1 or 2 people. Moreover, pouring water doesn’t create a lot of mess like the rest – the spout is well curved and has a small opening that prevents water from splashing out from everywhere. 

The downside is that the filling reservoir tends to slip forward when pouring full pitchers with one hand due to the weight of the filter. You have to hold it down for better control or it can pop out. It’s also very small (holds about 2 cups). You have to refill it 3 times to fill the pitcher.

The upside though is that the filter does filter the water through fairly fast than the other two models. It takes about 5 to 10 minutes after each refill. 

Setup and Maintenance

Despite its small size, several users found the ZP-006-4 challenging to set up – getting the filter twisted in place until it sits tightly in the gasket is hard if you don’t have sufficient strength. Replacing it is a pain too but unlike the rest, you won’t have to do it pretty often since it does last a bit longer (2 to 3 months). 

Another biggest issue is removing the lid of the top reservoir to add water. It’s fitted so tightly that it’s difficult to lift it off the top – you have to stick your finger in the pour spot to pry it off.

Should you buy the ZeroWater ZP-006-4 water filter pitcher?

If you live alone or want a water filter pitcher for small spaces like mini-fridges, then you can consider it. Its filtration performance is similar to the other two models and also comes with a TDS meter. 

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