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Waterdrop G3 Reverse Osmosis System, 8 Stage Tankless Reverse Osmosis Water Filter, NSF/ANSI 42 & 58 & 372 Certified, Under Sink RO System, 2:1 Pure to Drain, Smart LED Faucet

4.6 4.6 out of 5 stars 2,680 ratings

Sustainability features

This product has sustainability features recognized by trusted certifications.

Carbon impact

Carbon emissions from the lifecycle of this product were measured, reduced and offset.

As certified by
Climate neutral by ClimatePartner Climate neutral by ClimatePartner

The Climate neutral label by ClimatePartner certifies that the carbon footprint of a product was calculated and all associated emissions were offset. Additionally, ClimatePartner encourages companies to set ambitious reduction targets and reduce their products' carbon footprints. The certificate number can be entered on ClimatePartner’s website for additional information such as the supported carbon offset project(s). ClimatePartner is improving lives by helping companies tackle climate change with practical solutions.

Learn more about this certification

Certification Number

NCVNQI
Part of
Climate Pledge Friendly

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Purchase options and add-ons

Material
1.System cover: plastic 2.Faucet: metal 3.RO filter: reverse osmosis membrane & carbon block & pp cotton 4.CF filter: pp cotton & carbon block See more
Capacity
600 Gallons
Included Components
RO system, RO/CF/CB filter, Faucet, PE pipes, T-fitting See more
Purification Method
Reverse Osmosis, Carbon Block

About this item

  • 𝐓𝐫𝐮𝐬𝐭𝐞𝐝 𝐜𝐞𝐫𝐭𝐢𝐟𝐢𝐜𝐚𝐭𝐢𝐨𝐧𝐬: Waterdrop G3 reverse osmosis system is certified against NSF/ANSI 58 for TDS reduction and NSF/ANSI 372 certified for lead-free material. Also it has been tested and certified against NSF 42 to reduce chlorine, bad taste and odor. The tankless reverse osmosis system is also certified by the Federal Communications Commission. Besides, it meets the EU Standards and UKCA Standards for safety.
  • 𝟖-𝐬𝐭𝐚𝐠𝐞 𝐟𝐢𝐥𝐭𝐫𝐚𝐭𝐢𝐨𝐧: Tested by official third-party laboratory (SGS), the reverse osmosis system can effectively reduce TDS, chromium, PFAS, radium, fluoride, arsenic salt, iron, calcium, particles, chloride, chlorine and radioactive substances in your tap water. And our RO water filter system can reduce chemicals such as vinyl chloride, ethylhexyl acrylate, isobutylene, ethylene glycol, according to the reverse osmosis membrane technical manual.
  • 𝐒𝐦𝐚𝐫𝐭 𝐝𝐢𝐬𝐩𝐥𝐚𝐲 𝐟𝐚𝐮𝐜𝐞𝐭: The tankless reverse osmosis system is built with a smart display faucet. For instance, the TDS monitor tells you the quality of your filtered water, while the filter life tracker shows how soon you need to replace your filter.
  • 𝐇𝐢𝐠𝐡 𝐜𝐚𝐩𝐚𝐜𝐢𝐭𝐲, 𝟐:𝟏 𝐥𝐨𝐰 𝐝𝐫𝐚𝐢𝐧 𝐫𝐚𝐭𝐢𝐨: As an upgraded reverse osmosis system, this reverse osmosis water system produces 600 gallons of filtered water per day. By its low drain ratio, this system can produce only one cup of waste water for every two cups of pure water produced. Furthermore, with a fast and stable water flow rate, this RO system fills a 8 oz cup of water in 8 seconds, which is ideal for drinking and washing vegetables.
  • 𝐓𝐚𝐧𝐤𝐥𝐞𝐬𝐬 𝐝𝐞𝐬𝐢𝐠𝐧: Waterdrop G3 reverse osmosis system has a stylish look. This tankless design saves 70% under sink space. You can change a filter in 3 seconds without moving the system or using any tools. Note: This reverse osmosis system requires under-sink electricity.
See more product details

Customer ratings by feature

Flavor
4.6 4.6
Instruction quality
4.6 4.6
Easy to install
4.5 4.5
Value for money
4.3 4.3

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Waterdrop G3 Reverse Osmosis System, 8 Stage Tankless Reverse Osmosis Water Filter, NSF/ANSI 42 & 58 & 372 Certified, Under Sink RO System, 2:1 Pure to Drain, Smart LED Faucet
Waterdrop G3 Reverse Osmosis System, 8 Stage Tankless Reverse Osmosis Water Filter, NSF/ANSI 42 & 58 & 372 Certified, Under Sink RO System, 2:1 Pure to Drain, Smart LED Faucet
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Price$539.00$999.00-15% $186.99
Typical:$219.99
$31.99-22% $459.99
List:$589.99
$799.00
Delivery
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Get it as soon as Wednesday, Mar 27
Customer Ratings
Flavor
4.6
4.5
4.7
4.5
4.7
4.7
Easy to install
4.5
4.2
4.4
4.7
4.6
4.5
Value for money
4.3
4.6
4.4
4.5
4.5
Instruction quality
4.6
5.0
4.1
4.6
Tech Support
3.7
3.8
4.6
4.7
Sold By
WaterdropDirect
WaterdropDirect
R Water Filter
WaterdropDirect
Amazon.com
Fizzlife Solutions
purification method
Reverse Osmosis, Carbon Block
Reverse Osmosis
Reverse Osmosis
Reverse Osmosis
Reverse Osmosis
Reverse Osmosis, Alkaline
capacity
600 gallons
800 gallons
500 gallons
0.26 gallons
0.4 gallons
1000 gallons
power source
Corded Electric
Corded Electric
Corded Electric
model name
WD-G3
g3p800
RO System: RMS-WP-RO500 RO Filter Replacement: RMS-WP-RO500-RO PC Filter Replacement: RMS-WP-RO500-PC C FilterReplacement: RMS-WP-RO500-C
WD-PMT
RO500AK
PD1000-TAM4
material
1.System cover: plastic 2.Faucet: metal 3.RO filter: reverse osmosis membrane & carbon block & pp cotton 4.CF filter: pp cotton & carbon block
Reverse Osmosis Membrane & Carbon Block & PP Cotton
RMS-WP-RO500: 15 7"X 5.5"X 13", Faucet: 304 lead free stainless steel, RO filter: reverse osmosis membrane, PC filter: granular activated carbon & carbon block & pp cotton & scale resistant filter, C filter: post carbon
BPA-Free
Nickel
1. Pleated Carbon Compound filter 2. 1000G RO membrane, 3. Alkaline Remineralization filter 4. Stainless steel faucet with brushed nickel finish.
included components
RO system, RO/CF/CB filter, Faucet, PE pipes, T-fitting
RO system, RO filter, CF filter, CB filter, LED smart faucet, Other accessories
1 RO System, 3 Filters(RO/PPC/C), Faucet, 3 Tubings, 1 Drain Saddle, All Adaptor
Pressure mini water tank
Tubing,System, Feed water adapter, Drain saddle, Faucet, Power supply, Manual

From the brand


Product Description

RO System
Reverse Osmosis System Tankless RO Water Filter System Under Sink RO System

600 GPD High Capacity

Waterdrop G3P600 tankless reverse osmosis system gets one cup of purified water in 8 seconds without waiting.

Reverse Osmosis System Tankless RO Water Filter System Under Sink RO System

2:1 Pure to Drain Ratio

8x water saving by an advanced water purification technology.

Reverse Osmosis System Tankless RO Water Filter System Under Sink RO System

8-stage Filtration

This tankless reverse osmosis system can effectively reduce heavy metals in tap water and improve water quality through 8 stages of filtration.

Reverse Osmosis System Tankless RO Water Filter System Under Sink RO System

Simple Twist, Easy Replacement

1. Rotate the used filter counterclockwise, and take it out.

2. Insert a new one, and rotate it clockwise in place.

Reverse Osmosis System Tankless RO Water Filter System Under Sink RO System

Minimalist Look, Perfect for Kitchen

Tankless design frees up over 7o% of under sink storage space. Unique green solution ensures purity in every drop. Note: Drill 2 holes to install system. One for RO faucet (1"), the other is for drain pipe connection.

Reverse Osmosis System Tankless RO Water Filter System Under Sink RO System

Safeguard Cleanness and Health of Your Water

This RO system comes with an automatic flushing function, and you can always get clean drinking water when you get home. it is designed to ensure freshness in every sip.

G3P600

Waterdrop reverse osmosis system

Waterdrop G3P600 reverse osmosis system

WD-G3P600 RO System

RO SYSTEM

WD-X12 RO System

RO

WD-X16 RO System

Waterdrop C1S CoreRO System

WD-C1S Countertop RO

Waterdrop A1 countertop reverse osmosis system

WD-A1 Water Cooler

Waterdrop G3 400G

400 GPD Refurbished RO

G3P800

WD-G3P800-W RO System

Customer Reviews
4.6 out of 5 stars
2,680
4.8 out of 5 stars
37
4.8 out of 5 stars
37
4.6 out of 5 stars
235
4.4 out of 5 stars
204
4.5 out of 5 stars
352
Flow Rate
600 GPD 1200 GPD 1600 GPD 𝐂𝐨𝐮𝐧𝐭𝐞𝐫𝐭𝐨𝐩 RO 𝐂𝐨𝐮𝐧𝐭𝐞𝐫𝐭𝐨𝐩 RO 𝟒𝟎𝟎 𝐆𝐏𝐃 - 𝐔𝐬𝐞𝐝 800 GPD
Filtration Stages
8 11 11 5 6 8 9
Pure to Drain Rate
2:1 3:1 3:1 3:1 2:1 1:1 3:1
Faucet
Smart faucet Smart faucet Smart faucet - - Smart faucet Smart faucet
Display
Filter lifespan & TDS Filter lifespan & TDS Filter lifespan & TDS TDS & Water Volume TDS & Temperature & Lifespan Filter lifespan & TDS Filter lifespan & TDS
Self-clean
- -
Electricity Required
Filter Lifespan
CF-6Mths, CB-12Mths, RO-24Mths F1-12Mths, F2-6Mths, F3-24Mths F1-12Mths, F2-6Mths, F3-24Mths C1RF - 12 Mths CF-6Mths, RO-12Mths CF-6Mths, CB-12Mths, RO-24Mths CF-6Mths, CB-12Mths, RO-24Mths
Dimensions (inch)
𝟏𝟖.𝟏𝟐𝐱𝟓.𝟔𝟕𝐱𝟏𝟕.𝟕𝟐 18.20 x 6.25 x 16.72 18.20 x 6.25 x 16.72 11.7 x 8.3 x 13.7 18.3 x 7.8 x 17.1 18.12 x 5.67 x 17.72 18.12 x 5.67 x 17.72

Product guides and documents

Sustainability features

Sustainability features

This product has sustainability features recognized by trusted certifications.

Carbon impact

Carbon emissions from the lifecycle of this product were measured, reduced and offset.

As certified by
Climate neutral by ClimatePartner Climate neutral by ClimatePartner

The Climate neutral label by ClimatePartner certifies that the carbon footprint of a product was calculated and all associated emissions were offset. Additionally, ClimatePartner encourages companies to set ambitious reduction targets and reduce their products' carbon footprints. The certificate number can be entered on ClimatePartner’s website for additional information such as the supported carbon offset project(s). ClimatePartner is improving lives by helping companies tackle climate change with practical solutions.

Learn more about this certification

Certification Number

NCVNQI
Part of
Sustainability features
Climate Pledge Friendly

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Product Warranty: For warranty information about this product, please click here

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Waterdrop G3 Reverse Osmosis System, 8 Stage Tankless Reverse Osmosis Water Filter, NSF/ANSI 42 & 58 & 372 Certified, Under Sink RO System, 2:1 Pure to Drain, Smart LED Faucet


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Important information

Bulb Voltage

110 volts

Customer reviews

4.6 out of 5 stars
4.6 out of 5
2,680 global ratings

Customers say

Customers like the water quality, appearance, size and ease of installation of the water purification unit. For example, they mention that it makes well water drinkable, the sleek design is well designed and that it takes up very little space under the sink. They appreciate the clear instructions and the fact that it's pretty simple to install. Customers are also satisfied with performance, and quality. That said, opinions are mixed on the value.

AI-generated from the text of customer reviews

447 customers mention425 positive22 negative

Customers find the installation of the water purification unit pretty simple. They say the system is easy to use, understand, and service. Customers also mention that the instructions are clear and there is a 1-800 number in case they have any questions. They also say the connections are all pretty easy and can be easily DIYed as long as you have the right tools.

"...The connections are all pretty easy, although you should pay attention to the "Push the locking ring" instructions so you don't accidentally break..." Read more

"...Waterdrop RO by itself is extremely easy to install...." Read more

"...I purchased it on sale here at Amazon. It was a relatively easy installation--but I'm comfortable with minor DIY jobs like this...." Read more

"The Waterdrop G3 system was fairly easy to install with clear instructions...." Read more

327 customers mention272 positive55 negative

Customers like the quality of the water purification unit. They say it's a high quality product, with excellent output quality. They also say it looks modern, sleek, and high tech. Customers also mention that the instructions are clear and the design is foolproof.

"...Each part feels solid and well-made.INSTALLATION..." Read more

"Love it! Great Design. Excellent Quality. Prompt Service. I bought this Waterdrop RO system about two weeks ago and so far love it!!..." Read more

"...Even though it is one of the most efficient RO systems i've seen at 1:1 waste, that's still 1:1 wasted water...." Read more

"...has many benefits including, compactness, self-contained, serviceable filter elements, but it also has a couple important drawbacks...." Read more

303 customers mention282 positive21 negative

Customers are satisfied with the taste of the water after using the water purification unit. They mention that the water tastes great and the smell was totally gone.

"...Not only does the water taste better, our coffee and anything else we used water in also tastes better...." Read more

"...to pump water directly and ensures the water quality, the water tastes really GREAT! P.S. Remember to double check for the power outlet...." Read more

"...It reminds me of bottled water like Dasani or Arrowhead. The taste does not "bother" me, it is immediately "forgetful" because it is just "water"...." Read more

"...I have no way to know if the TDS display is accurate, but the water tastes great. The filters are super easy to remove and install...." Read more

172 customers mention132 positive40 negative

Customers like the performance of the water purification unit. They say it works well, has no issues, and is easy to install. Customers also appreciate the quality and functionality of the filter system. They mention that the ice maker works correctly, and the waterdrop works great. Overall, customers are happy with the unit and performance.

"...I have had it installed for 5 months now and it is working flawlessly--just doing its thing quickly and quietly under the counter...." Read more

"...over to the Waterdrop system and we are completely happy with the unit and performance...." Read more

"We bought this system for our kitchen remodeling. It worked great so far...." Read more

"...This takes me to the second reservation I have about RO in general…waste. This system backflushes the filters at about a one-to-one ratio...." Read more

158 customers mention141 positive17 negative

Customers like the size of the water purification unit. They mention that it takes up very little space under the sink because it is tankless. They also appreciate the vertical space and horizontal footprint of the unit. Overall, customers are happy with the compact size and the ability to fit under their sink.

"...Interface is intelligent and intuitive- Tankless design saves space and eliminates post-filter bacteria issues- Looks great-..." Read more

"...2. Great design. The design is compact with smart indicators of water quality and filter life on both the faucet and the system panel...." Read more

"...Pros: Water is clean, clear, and the flavor is excellent! The G3 unit is slim and tucks to the side of my cabinet underneath the kitchen sink,..." Read more

"...Mostly uses vertical space, the horizontal footprint is quite small for what it does...." Read more

138 customers mention128 positive10 negative

Customers are satisfied with the water quality of the water purification unit. They mention that it makes their well water drinkable, and that the design is compact with smart indicators of water quality and filter life. They appreciate the consistent and direct water, and the 1: 1 water ratio. The best feature is that you never run out of water because the tank is empty.

"...Produces clear, clean water- Interface is intelligent and intuitive-..." Read more

"...2. Great design. The design is compact with smart indicators of water quality and filter life on both the faucet and the system panel...." Read more

"...Pros: Water is clean, clear, and the flavor is excellent!..." Read more

"...We get consistent and direct water without having to wait for the filtered water to gather like most other system I have been used to...." Read more

122 customers mention120 positive2 negative

Customers are satisfied with the appearance of the water purification unit. They mention it has a sleek design, is well-designed, and has slick features. Customers also appreciate the blue LED light and the ease of filter changes. Overall, most are happy with the product's appearance.

"...the brushed nickel finish matches our faucet and looks great (Image 1)- the 12 second time-to-fill an 8 oz glass is good..." Read more

"Love it! Great Design. Excellent Quality. Prompt Service. I bought this Waterdrop RO system about two weeks ago and so far love it!!..." Read more

"...I verified this with my own TDS meter.5- Elegant appearance...." Read more

"...Overall, we are very impressed with the thoughtfulness of the design and function of the system and would highly recommend it...." Read more

128 customers mention87 positive41 negative

Customers are mixed about the value of the water purification unit. Some mention it's worth the money, reasonable priced, and provides a long-term cost benefit. However, others say that it'd be too expensive to replace every 4 years and the filter is too expensive.

"...compared to the usual sprawl of a RO system, this design was worth the extra expense to me...." Read more

"...The water pressure from the included spigot is fine, quite tolerable. And is the same coming out of the fridge as well...." Read more

"...The final gripe is the cost of filter media...." Read more

"...With that said, this Waterdrop RO system is worth every penny that I spent on it. I hope you'll find it enjoyable as I do. Good luck." Read more

Well Designed, East to Install, Great Tasting Water
5 Stars
Well Designed, East to Install, Great Tasting Water
We live by the sea in an old community in an area with very high particulates in the water system. The water also smells like chlorine. We have always bought bottled water, but with the Pandemic, our grocery load started to become unmanageable as we cut down on the number of trips we made to the store. We started to drink the tap water and almost immediately decided it was time to try out a water filter.RESEARCHI did a lot of investigation, and by a long shot, the WaterDrop products represent the best designs on the market:- the forward-facing filters are as easy to replace as a refrigerator filter.- the tankless design means you don't lose much undersink space (Image1)- the tankless design also means there's no opportunity for bacteria to grow in the holding tank- the smart faucet (the led ring around the base) conveys the state of the filters - blue is good, yellow means you're due for a change and red means you should change a filter immediately- the WD-G3 display not only tells you the state of the water in Total Dissolved Solids (TDS), but also shows you the state of each of the filters (blue/yellow/red) so you know which one to order.- the brushed nickel finish matches our faucet and looks great (Image 1)- the 12 second time-to-fill an 8 oz glass is goodEverything about this unit screams "quality". The instructions are simple and easy to follow. The 800 number is listed on the cover of the installation guide. Each part feels solid and well-made.INSTALLATIONThere is one challenge that most homeowners will probably face to using this unit -- it requires power under the sink. I had a socket under my sink that the garbage disposal was plugged into. I assumed (you can see where this is going!) that as is traditional, the upper socket was wired to the disposal switch and the lower was always hot. Unfortunately, living in an older home, this was not the case, so I had to replace the socket with a split/switched/always hot one. Our garbage disposal unit is huge, and our sink is in the corner of the kitches with one small door, so it needed to be removed to facilitate the install. Between the disposal deinstall/reinstall and and the rewiring job, installation took me all day. HOWEVER - The actual installation of the Waterdrop unit was approximately 40 minutes of this, so plan accordingly. I had one minor issue with the waste pipe connection, which is designed for 1.5" pipe (we have 2" pipes, but the pipe coming out of the garbage disposal was 1.5" with just enough space to connect the waste line).All of the lines are thoughtfully unique - there are two white lines, but of different sizes (one goes from the water source, one goes to the spigot) and the waste water is red, so you can't get confused. The connections are all pretty easy, although you should pay attention to the "Push the locking ring" instructions so you don't accidentally break one of the shipping plugs when removing them. The locking ring collars are a bit fussy and require a needle nose pliers to install.Other than my own personal challenges of a small under-sink space and the electrical issue, the installation was a breeze.WATER QUALITYSo, the big question -- does it work? The answer is YES! See the second the image. I used an independent water meter to measure the TDS. On a sample from a bathroom spigot I got 99. This is pretty typical, we run around 90 to 120. Measuring the water from the filtering system shows 12. The reading on the front of the unit showed in the mid 70's during startup, but now shows 5. Given the somewhat wonky nature of water testing, I'm good with these numbers even though they differ slightly.The WD-G3 reduced the TDS in our water by an order of magnitude. This is exactly what you would expect from an RO system that should filter out about 90% of all TDS. This translates to a better tasting, safer glass of water, which it produces in about 12 seconds (8 oz).Not only does the water taste better, our coffee and anything else we used water in also tastes better. While the difference is not as evident at room temperature, you can really tell the difference in a side-to-side test of chilled water. We tested tap vs filtered vs Poland Spring bottled. At room temperature, they are all pretty much the same, with Poland Spring being slightly saltier. We tested the TDS on Poland Spring and it was at 41, confirming that there's some mineralization going on there. In chilled form, the filtered tasted the best, with Poland spring second and the unfiltered third. (And yes, to answer your question, my wife is now laughing at me because of my obsession with metrics and blind taste tests)FILTER REPLACEMENT/CUSTOMER SERVICEAs some other reviewers have notes, the "CF" filter seems to be in very short supply and cannot even be purchased on the Waterdrop site. I contacted Waterdrop customer service who responded (on a weekend!) that the filters will be back in stock at the end of this month.SUMMARYPros:- Does what it says, reduces TDS by a factor of 9-10- Produces clear, clean water- Interface is intelligent and intuitive- Tankless design saves space and eliminates post-filter bacteria issues- Looks great- Responsive customer serviceCons:- Requires un-switched power under the sink- The CF Filter replacement is currently unavailable.Recommendation: The CF shortage is worrying, hopefully Waterdrop will be able to solve this issue. It's a Pandemic so I'm willing to give them some leeway in supply chain challenges. I decided to take the plunge anyway and given the alternatives, this is still the best unit on the market.
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Top reviews from the United States

Reviewed in the United States on August 16, 2020
Customer image
5.0 out of 5 stars Well Designed, East to Install, Great Tasting Water
Reviewed in the United States on August 16, 2020
We live by the sea in an old community in an area with very high particulates in the water system. The water also smells like chlorine. We have always bought bottled water, but with the Pandemic, our grocery load started to become unmanageable as we cut down on the number of trips we made to the store. We started to drink the tap water and almost immediately decided it was time to try out a water filter.

RESEARCH
I did a lot of investigation, and by a long shot, the WaterDrop products represent the best designs on the market:

- the forward-facing filters are as easy to replace as a refrigerator filter.
- the tankless design means you don't lose much undersink space (Image1)
- the tankless design also means there's no opportunity for bacteria to grow in the holding tank
- the smart faucet (the led ring around the base) conveys the state of the filters - blue is good, yellow means you're due for a change and red means you should change a filter immediately
- the WD-G3 display not only tells you the state of the water in Total Dissolved Solids (TDS), but also shows you the state of each of the filters (blue/yellow/red) so you know which one to order.
- the brushed nickel finish matches our faucet and looks great (Image 1)
- the 12 second time-to-fill an 8 oz glass is good

Everything about this unit screams "quality". The instructions are simple and easy to follow. The 800 number is listed on the cover of the installation guide. Each part feels solid and well-made.

INSTALLATION
There is one challenge that most homeowners will probably face to using this unit -- it requires power under the sink. I had a socket under my sink that the garbage disposal was plugged into. I assumed (you can see where this is going!) that as is traditional, the upper socket was wired to the disposal switch and the lower was always hot. Unfortunately, living in an older home, this was not the case, so I had to replace the socket with a split/switched/always hot one. Our garbage disposal unit is huge, and our sink is in the corner of the kitches with one small door, so it needed to be removed to facilitate the install. Between the disposal deinstall/reinstall and and the rewiring job, installation took me all day. HOWEVER - The actual installation of the Waterdrop unit was approximately 40 minutes of this, so plan accordingly. I had one minor issue with the waste pipe connection, which is designed for 1.5" pipe (we have 2" pipes, but the pipe coming out of the garbage disposal was 1.5" with just enough space to connect the waste line).

All of the lines are thoughtfully unique - there are two white lines, but of different sizes (one goes from the water source, one goes to the spigot) and the waste water is red, so you can't get confused. The connections are all pretty easy, although you should pay attention to the "Push the locking ring" instructions so you don't accidentally break one of the shipping plugs when removing them. The locking ring collars are a bit fussy and require a needle nose pliers to install.

Other than my own personal challenges of a small under-sink space and the electrical issue, the installation was a breeze.

WATER QUALITY
So, the big question -- does it work? The answer is YES! See the second the image. I used an independent water meter to measure the TDS. On a sample from a bathroom spigot I got 99. This is pretty typical, we run around 90 to 120. Measuring the water from the filtering system shows 12. The reading on the front of the unit showed in the mid 70's during startup, but now shows 5. Given the somewhat wonky nature of water testing, I'm good with these numbers even though they differ slightly.

The WD-G3 reduced the TDS in our water by an order of magnitude. This is exactly what you would expect from an RO system that should filter out about 90% of all TDS. This translates to a better tasting, safer glass of water, which it produces in about 12 seconds (8 oz).

Not only does the water taste better, our coffee and anything else we used water in also tastes better. While the difference is not as evident at room temperature, you can really tell the difference in a side-to-side test of chilled water. We tested tap vs filtered vs Poland Spring bottled. At room temperature, they are all pretty much the same, with Poland Spring being slightly saltier. We tested the TDS on Poland Spring and it was at 41, confirming that there's some mineralization going on there. In chilled form, the filtered tasted the best, with Poland spring second and the unfiltered third. (And yes, to answer your question, my wife is now laughing at me because of my obsession with metrics and blind taste tests)

FILTER REPLACEMENT/CUSTOMER SERVICE
As some other reviewers have notes, the "CF" filter seems to be in very short supply and cannot even be purchased on the Waterdrop site. I contacted Waterdrop customer service who responded (on a weekend!) that the filters will be back in stock at the end of this month.

SUMMARY
Pros:
- Does what it says, reduces TDS by a factor of 9-10
- Produces clear, clean water
- Interface is intelligent and intuitive
- Tankless design saves space and eliminates post-filter bacteria issues
- Looks great
- Responsive customer service

Cons:
- Requires un-switched power under the sink
- The CF Filter replacement is currently unavailable.

Recommendation: The CF shortage is worrying, hopefully Waterdrop will be able to solve this issue. It's a Pandemic so I'm willing to give them some leeway in supply chain challenges. I decided to take the plunge anyway and given the alternatives, this is still the best unit on the market.
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85 people found this helpful
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Reviewed in the United States on December 10, 2019
130 people found this helpful
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roco
3.0 out of 5 stars Easy to install, but false advertising
Reviewed in the United Kingdom on September 30, 2021
One person found this helpful
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Javier Garcia
5.0 out of 5 stars El sabor del agua es excelente
Reviewed in Mexico on July 11, 2020
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PERRIN
4.0 out of 5 stars facile d'installation
Reviewed in France on March 30, 2021
Luis Mora
1.0 out of 5 stars No hay reemplazo de filtros en México.
Reviewed in Mexico on January 25, 2021
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Me
5.0 out of 5 stars Excellent water filter
Reviewed in Canada on May 6, 2022
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