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Waterdrop Filter Reviews: Don’t Buy Before Reading (2024)

Waterdrop Filter Reviews 5 Premium Purification Choices-2022

With a ton of brands to choose from, we have made your task easier with this waterdrop filter reviews definitive guide.

You’ll ask me why only Waterdrop.

It’s because they are delivering quality filtration solutions across categories with efficient after-sales service.

Don’t believe me? Check out our top-picked products and find out by yourself!

5 Most Demanded Waterdrop Filter Reviews: A Quick Preview

<strong>Waterdrop 15 UA Undersink Water Filter</strong>#1

Waterdrop 15 UA Undersink Water Filter

  • Compact size
  • Certified by WQA(third-party labs) based on NSF/ANSI standards.
  • Multi-stage filtration process
  • Lead-free material
Check PriceRead Full Review
<strong>Waterdrop G3 Undersink RO Water Filter</strong>#2

Waterdrop G3 Undersink RO Water Filter

  • 7-stage filtration system
  • Reduces TDS
  • Anti-leak function
  • Smart, brushed-nickel faucet      
Check Price
[Code: MD120]
Read Full Review
<strong>Waterdrop TSU-B 0.01 Micron Ultra Filtration Water Filter</strong>#3

Waterdrop TSU-B 0.01 Micron Ultra Filtration Water Filter

  • 3-stage filtration system
  • Does not require an electricity cable under the sink
  • Takes up little space
  • Does not make any noise
Check Price [Code: MD15] Read Full Review
<strong>Waterdrop G2 Undersink RO Water Filter</strong>#4

Waterdrop G2 Undersink RO Water Filter

  • 5-stage filtration system
  • Easily adjustable size with a tankless design
  • 2 filters—carbon filter and RO membrane filter
  • 1:1 water-to-waste ratio
Get Discount [Code: Aqua Professor] Read Full Review
<strong>Waterdrop D6 Reverse Osmosis Water Filter</strong>#5

Waterdrop D6 Reverse Osmosis Water Filter

  • 6-stage filtration system
  • Reduces TDS
  • 2:1 pure-to-waste ratio
  • Smart faucet
Check Price [Code: Aqua Professor] Read Full Review
Here's How We Test Products At Aquaprofessor

⚖ Which Waterdrop Filter Is Best?

FeaturesWD 15UA UndersinkWD G3 Undersink ROWD TSU 0.01µ UltrafiltrationWD G2 Undersink ROWD D6 RO
Easy to install9/109/109/109/109/10
Easy to maintain10/1010/1010/1010/109/10
Water filtration capacity8/109/107/109/1010/10
Water flow rate10/108/109/108/109/10
Water taste8/1010/108/1010/109/10
Also Read: 5 Best Faucet Finishes

Is Waterdrop A Good Brand?

About Waterdrop Is It a Reliable Brand

Since 2015, Waterdrop has been a well-known water filter brand with a wide variety of items to choose from.

You will not regret going through their extensive list of products—faucet water filters, refrigerator water filters, under sink filters, reverse osmosis filters, and water filter pitchers.

This company has over 200 products for water filtration and purification. The products listed by the company are tested and certified by NSF, CSA, WARS, UL, and many more.

  • Waterdrop stands out amongst its competitors because of its design, size, and after-sales service.
  • It has a very compact and sleek design, which catches the attention at first glance and acquires little space.

Since I have personally experienced its after-sales support, I can assure you that the staff is easily accessible and genuinely cooperating.
Moreover, their products are directly linked to the Water Project, which aims to provide clean drinking water for African communities.

So, buying a Waterdrop filter provides safe water to our family and the families living in the water-scarce area of Africa. 

Also Read: Iron Pro Water Softener Review

5 Best Waterdrop Water Filters

1️⃣ Waterdrop 15 UA Undersink Water Filter Review

The Waterdrop 15 UA Undersink water filter is a small and compact filter with a lead-free material used in its manufacturing.

The lead-free material prevents further contamination of filtered water inside the filtration system.


  • Removes unpleasant smell and taste.
  • Lead-free material used.
  • Retains good minerals.


  • Not certified to remove lead, arsenic, asbestos, or any other heavy metal. 
  • Difficult to figure out when to replace filters.

This filter only costs 0.05 dollars per day, and therefore, it is pocket-friendly. This filter is your perfect choice if you’re looking for something that only removes the smell and taste of chlorine and other suspended particles from water.


The installation of this water filter requires no external plumbing services; all that it requires is the provided instruction manual, drilling, and a few household tools.

Unlike the tedious installation process of traditional water filters, this one takes only 3 minutes.  


Once installed, it does not require any special maintenance for at least 1 year. After this period of 12 months, it is recommended to change the filter to continue enjoying the pure water experience. 

Filtration Capacity: 

The maximum capacity of this under-sink filter is 16,000 gallons, which means that the daily capacity is around 43 gallons. 

Water flow rate:

Water flow rate

The water flow rate is by far the best amongst all its competitors. The water flows at 0.75 gallons per minute (at 60psi), which is adequate for your household chores and drinking water needs.

Water taste:

In case you are looking for a filter that removes the chemical contaminants (foul odor and taste), you are at the right place; it does this job pretty well and removes the chlorine taste.

I can tell this from my personal experience that it does provide you with tasty water, which is clean and safe.

2️⃣ Waterdrop G3 Undersink RO Water Filter Review

This one is an award-winning faucet water filter, as it was awarded the 2019 Red Dot Design prize for its space-saving design and aesthetic looks.

This high-tech product has a 7-stage filtration system with advanced composite filters, which provides excellent water quality.


  • Certified for TDS reduction and lead-free material. 
  • Removes harmful contaminants larger than 0.0001 microns. 
  • The tankless design prevents the risk of further pollution inside the tank.
  • Has indicator lights to display the lifespan of filters.
  • Features like Automatic Flushing


  • It is quite expensive for many people.
  • It does not have the feature of remineralization of water.

No particles larger than 0.0001 microns can move through the filters. G3 is NSF 58 certified for TDS removal. It does not make any noise once the cabinet is closed or cause any leakage problems. 

Also Read: Waterdrop G3 vs D6 (New) 

Firstly, the cotton layer removes the large particles of sand and other sediments; then, the activated carbon layer removes the aesthetic harmful impurities, lead, chlorine, and fluoride.
The water goes through the second PP cotton layer, RO membrane, and post-activated carbon block filter for ultrafiltration in the further steps.


The installation of this 7-stage filter is also handy and can be done in less than 30 minutes with minimal equipment and expertise.

Due to its innovative design, it requires only a few minutes to install the replacement filter. 



Post-purchase, the first replacement cost is after around six months; we need to replace the carbon block filter once this time is over.

After that, the RO element and the activated carbon filter need replacement after 24 months and 12 months, respectively.  

FilterReplacement Period
Carbon Filter6 months
Carbon Block12 months
Reverse Osmosis 24 months

Filtration capacity:

The flow rate is 400GPD, which is enough for most average households.

Water flow rate:

The water flow rate is 0.28 gallons per minute, which is a good flow rate. It is way better than the rate provided by traditional water filters. 

Water taste:

This filtered water tasted the best of all time. The carbon granules in the carbon filter are made from coconut shells, making the water so tasty.

3️⃣ Waterdrop TSU-B 0.01 Micron Ultra Filtration Water Filter Review


  • It does not require any cable connection under the sink. 
  • It uses an ultra-fine membrane, which does not allow the range of contaminants larger than 0.01 microns, to go through. 
  • It saves a lot of space, owing to its compact size. It can be easily adjusted in a corner, under the sink.


  • This product has no NSF certification to prove its claims. 

It does not make any disturbing noise once the sink cabinet is closed. Moreover, its mechanism follows an integrated waterway system, preventing water leakage. 

This faucet water filter involves three stages of filtration:

  • In the first stage, the impure municipal water passes through the PP layer to leave rust and other physical impurities behind.
  • Water passes through the UF coating to remove bacteria larger than 0.01 microns in the second layer.
  • The final layer of the CT filter reduces chlorine and other heavy metals.

Easy to install:

Just like other filters of this brand, this too requires minimal tools and can be fixed by oneself only, in 30 minutes maximum.

Due to its twist-and-pull design, anyone can replace the water filter in just a few seconds. 

Easy to maintain:

Since these filters have excellent performance, the maintenance cost is low. For instance, the ultrafiltration membrane must be changed only once every 24 months.

Additionally, the PP and CT filters need a replacement after 6 and 12 months, respectively. 

Water filtration capacity:

One thing that I do not like about this filter is the lack of information available in its description. It is not mentioned anywhere about the capacity of the filtration system. 

Water flow rate:

The flow of water is relatively good at 0.5 gallons per minute. This means you can fill a glass with water in just a few seconds. Therefore, no long waiting time for a glass of filtered water. 

Water taste:

After filtration, there was a change in the water taste, but I couldn’t appreciate the taste that much. However, the water looked clearer to me, with no suspended particles or visible impurities.

4️⃣ Waterdrop G2 Undersink RO Water Filter Review


  • Quick water filtration process. 
  • The water-to-waste ratio is 1:1. 
  • Perfect filter size for small spaces.


  • Although it is cheaper than Waterdrop G3, some still consider it heavy on the pocket.

It has a 1:1 water-to-waste ratio, which means that one cup of impure water is wasted if one cup of pure water is given. Having a 5.7-inch width, it is effortless to fit this filter in the kitchen cabinet. 

  • This filter purifies water through 5 stages of filtration.
  • This system involves water passing through two types of filters (CF and MRO filters) and five layers to reach the optimum quality.
  • This filter has a tankless design, saving a lot of space and giving a sleek look.


This filter comes with all the water lines in an installation kit. We need to follow the instructions mentioned in the explanatory manual. Voila! It is done in less than 30 minutes. 


Both of its filters have long due dates for replacement, reducing future maintenance costs. One requires a change after one year and the other after two years, which is quite pocket friendly. 

Water filtration capacity:

It has the potential to filter 400 gallons of water per day. The capacity of this filter is the same as that of the Waterdrop G3 under-sink RO filter. 

Water flow rate:

The flow rate is 0.28 gallons per minute. Just like the water filtration capacity, the water flow rate is also the same as the Waterdrop G3 filter. 

Water taste:

I found the taste of water much better than that of bottled water. It looks very pure and clear and tastes just amazing.

5️⃣ Waterdrop D6 Reverse Osmosis Water Filter Review


  • The smart faucet shows TDS and life monitoring on display.
  • Fast flow rate. 
  • Very low water-to-waste ratio. 


  • Very expensive replacement filter.

The pure and impure water ratio is 2:1, which is the best among all its competitors. Therefore, buying this filter can help the environment. It also has a smart display faucet, which shows the filters’ lifespan and the TDS value. 

The Waterdrop D6 RO filter involves 5-in-1 composite filters to remove harmful contaminants from water.

The water passes through 6 layers, where large visible particles, organic matter, salt, lead, chromium, chlorine odor and benzene levels are reduced, and taste is improved. This also reduces the TDS level in the water.

Easy to install:

With all the wires, attachments, and guide-giving manual available, this filter is also super-simple to fix. It does not require any plumbing service; you can manage everything single-handedly. 

Easy to maintain:

Easy to maintain

This 6-level filtration system does not require any special maintenance. If you follow the obvious dos and don’ts, it will not require a replacement for at least a year. 

Water filtration capacity:

It can filter water at a flow rate of 600 gallons per day. This is, by far, the best capacity amongst its competitors. 

Water flow rate:

The flow rate is 0.42 GPM (gallons per minute). With this flow rate, a glass of water gets filled in just a few seconds.

Water taste:

I was able to figure out the difference between filtered water and unfiltered water. The filtered water tasted much better than the other. It also seemed to be clearer and contaminant-free.

Waterdrop Reverse Osmosis FAQs

Do Waterdrop filters remove lead?

There are over 200 Waterdrop products. Many of their products are designed to remove lead from water.

The products are tested and certified by NSF, which you can easily verify on their official website.

What do customers say about Waterdrop filters?

Every Waterdrop product receives overall high star ratings; these have very few 1-star ratings. The company is top-rated for its product quality and customer service.

As mentioned in customer reviews, they simply love the fact that the under-sink filters are too easy to install and have a low maintenance cost.

The products have a sophisticated design, modern, smart features, and compact size. All these things are what modern-day customers look for.

Being their customer, I loved how the customer care executive helped me fix an issue (it was my carelessness).

When should you replace your Waterdrop filter?

You should replace your pre-sediment filter within 6 months and your carbon block filter within 12 months, but these durations can vary depending on your water quality.

If you notice a weird smell from your filtered water or a significant drop in water flow rate from your Waterdrop Undersink, it’s time to change your filter.

How long do Waterdrop filters last?

Waterdrop filters have a long lifeline. Different components have varied replacement intervals.

Some need a replacement within months, while others need to be changed after two years.

Their filters are equipped with smart technology that shows the filters’ lifespan and expected replacement time, but they can vary in different product models.

How does a Waterdrop filter work?

Waterdrop has a wide range of products, and different items work differently. Usually, all Waterdrop filters have a multi-stage filtration process to purify water.

The impure water passes through the different layers, which remove sediments, odor, bad taste, harmful substances like lead and arsenic, and organic compounds.

Some advanced filters have a display that shows the level of TDS removed and the lifespan of filters. 

6 thoughts on “Waterdrop Filter Reviews: Don’t Buy Before Reading (2024)”

  1. Goedemiddag Waterdrop medewerker,
    Ontkalkt het filtertwaterdrupel 15 UA undersink waterfilter ook ?

    Met vriendelijke groet,
    R. Duijn

  2. I am on well water with traces of sediment. Which water drop under sink filter is the most effective for sediment?
    Thank you

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