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Waterdrop Reverse Osmosis Water Filtration System
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Waterdrop Reverse Osmosis Water Filtration System, TDS Reduction, 400 GPD Fast Flow, Tankless, Smart Faucet, 1:1 Drain Ratio, WD-G3-W (3 Cartridges and 1 Faucet Included)


NSFNSF 58, 372 Certified*

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  • [Superior Performance] Removes TDS and 1000+ Contaminants in tap water.
  • [Smart easy-to-install design] Waterdrop RO water filtration system is an innovative all-in-one intelligent water purification system. In just a few minutes, the Waterdrop RO system can be installed completely.
  • [No-tank design] Its no-tank design prevents secondary pollution. 5.7’’ slim body takes up less storage space.
  • [No Waiting for Clean Water] RO system offers faster water flow (400 GPD) and produces pure water more quickly that can satisfy the water demands of the whole family and even small business.
  • [1: 1 Low Water-waste Rate] Waterdrop Reverse Osmosis Water Filtration System saves water waste by 300%.
  • [Meets Various Water Demands] Besides installing it under the sink, it can also be connected to a refrigerator to produce pure water and ice from the fridge.
Waterdrop reverse osmosis water filtration system is innovative and intelligent. It is free from secondary pollution because of its tankless design. With a width of 5.7’’, it takes up very little space. With faster water flow (400GPD), enjoy clean water without waiting.

Using RO filtration technology with filtration accuracy of 0.0001μm, the system can remove most of the contaminants in tap water. Embedded with a variety of sensors, it reminds water quality, filter life, and TDS value in real-time.

The system can be used with the refrigerator. Get an accessory kit for free to get purified ice water directly from your refrigerator. If you do not want to connect with your refrigerator, you can get a free gift pitcher. Fill up the pitcher with filtered water from the system. Clean water is always available.

Click here for gift after purchasing the RO system.
New technology, new experience.
NSF 58 & 372 certified Reverse Osmosis Water Filtration System
Waterdrop RO system is tested and certified by NSF International against NSF/ANSI standard 58, the TDS reduction rate is up to 94%, and it is NSF/ANSI 372 certified for lead-free material.
Waterdrop RO system has passed 400+ chemical lab tests proving that this system does not contain 400+ chemical substances, such as bisphenol A, formaldehyde, benzene, lead, cadmium, and so on.
The RO system with composite filters
  • It is the system to use composite filters to filter water faster and make performance better.
  • There are multi-stage filtration layers in three filters. The system uses high-quality filtration media for a premium effect. The 400 GPD water flow and tankless design also help ensure freshness.
*If you use well water as the source, please ensure that the feed water is pre-filtered.
*An electrical outlet is required to operate the RO system.
Reasons for choosing us:
  • We work to meet your needs.
  • We take feedback from our customers seriously.
  • We make every attempt to resolve any issues you have.
  • Waterdrop has gradually evolved into a professional brand of whole house water purification products. We care about what our consumers want, so we are constantly improving and adding water purification products to our system to bring it more in line with the needs of modern day life.
Innovative composite filter
More centralized filtration performance
Adopts advanced composite filter technology and combined multiple filter materials to make one filter contain multi-stage filtration layers. So that you can reduce the frequency of replacement.
Effectively filters out more than 1,000 harmful contaminants
Uses the characteristics of various filter materials skillfully and combines them to achieve better filtration. The composite filter can intercept more than 1,000 harmful contaminants.
Better water purification
Different from the traditional RO system that filters water slowly and stores water in the tank, this system adopts better composite filter elements. So it can filter water faster, and every drop of water is fresh enough.
NSF/ANSI 58 and NSF/ANSI 372 Certified Reverse Osmosis Filtration System
NSF 58 certified
Tested and certified by NSF International against NSF/ANSI standard 58. The TDS removal rate is certified to be up to 94%.
NSF 372 certified
It is also NSF/ANSI 372 certified for lead-free material. We promise you a trustworthy product to provide you with safer and healthier water.
Basic contaminants removal
Removes chlorine, taste and odor, chloramine, scale, turbidity, cysts, and many heavy metals.
Chemical contaminants removal
Removes inorganic contaminants, such as arsenic and inorganic arsenic compounds, and fluoride. Removes organic contaminants, such as asbestos, benzene, formaldehyde, lindane, phenytoin, nitrate/nitrite, bisphenol A, trichloromethane, chlordane, pfoa & pfos, etc.
Customer Reviews
*Some reviews are from for the same product.
Great product.

Works as expected. Love the 1 to 1 ration on the water waste instead of the 3 to 1 most others have. Some of the filters are hard to find. Order ahead of time.
Exceeded my expectations

I switched to a carbon filter a few months ago, but the taste was terrible (I later in learned that carbon does not reduce the Total Dissolved Solids, which contributes to taste.)<br><br>I then got this unit, and it has surpassed my expectations. TDS is under 16, and it tastes better than the filtered 5 gallon water jugs I used to buy. The water flow is pretty good. The only drawback is that it needs power to operate, but it hasn't been an issue.

This was easy to install and a space saver under our sink from the other systems we had looked at. It has worked out great. No more plastic water bottles!
Very progressive R. O.

I love that it doesn’t have a tank. Very good taste.
Everything I hoped it would be.

Install would have taken 30 minutes but the soap dispenser I replaced with the faucet fought me on the way out, also the valve coming out of the wall broke (very old/brittle). If your plumbing is in good shape install is very easy/straightforward.<br><br>The first few weeks being used by two people the reading was 22-24, after that it's dropped down to 12-14. Love it.
Waterdrop Reverse Osmosis Water Filtration System