Deliver to Ashburn
Deliver to Ashburn

Waterdrop RO Reverse Osmosis Water Filtration System, NSF Certified, TDS Reduction, 400 GPD Fast Flow, Tankless, Compact, Smart Faucet, UL Listed Power, USA Tech, Brushed Nickel Based Faucet

SALE 52%

Waterdrop RO Reverse Osmosis Water Filtration System, NSF Certified, TDS Reduction, 400 GPD Fast Flow, Tankless, Compact, Smart Faucet, UL Listed Power, USA Tech, Brushed Nickel Based Faucet



Brushed Nickel Based Faucet
Power Source
Corded Electric
400 Gallons
Model Name

Product description

Reverse osmosis system
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.

*For NSF 58&372: Certificate C0145653, by NSF International, 2020.

*Data is based on Waterdrop’s internal laboratory testing.

The first RO system with composite filters

It is the first system to use composite filters to filter water faster and make performance better.

There are multi-stage filtration layers in the three filters. The system uses high-quality filtration media for a premium effect. The 400GPD water flow, contaminants removal, and tankless design also help ensure freshness.

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.

  • Electrical outlet is required to operate RO system. Main power cable 90″, faucet’s power cable 59″.
  • We do not recommend connecting tankless RO to a refrigerator or ice maker.
  • We do not recommend using well water as source due to its complicated composition.
  • Placing this RO after a salt-based water softener may affect the taste (reduction rate 90%).
  • Drill 2 holes to install the system. One for RO faucet (1″), the other for drain pipe connection
  • Your experiences value most for us. We work to meet your needs.
  • We make every attempt to resolve any issues you have.

Innovative composite filter

RO system

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 and quantity of replacement.


RO system

Effectively filters over 1000 harmful contaminant

Uses the characteristics of various filter materials skillfully and combines them to achieve better filtration. The composite filter can intercept over 1000 harmful contaminant.


RO system

Better water purification

This revolutionary RO system adopts better composite filter element, getting rid of slow water flow and water storage problem. 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

RO 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%.

RO system

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 water.

RO system

Basic contaminants removal

Reduces chlorine, taste and odor, chloramine, scale, turbidity, cysts, and many heavy metals.

RO system

Chemical contaminants removal

Reduces inorganic pollutants, such as arsenic and inorganic arsenic compounds, and fluoride. Reduces organic contaminants, such as asbestos, benzene, lindane, phenytoin, nitrate/nitrite, trichloromethane, chlordane, pfoa&pfos, etc.

RO system

Flush for Accumulative Working Time over 2 Hours

If the machine keeps working over 2 hours, the surface of RO membrane will be flushed automatically for 20 seconds.

Flush for No Working within 24 Hours (Holiday Mode)

If the machine stops dispensing water for 24 hours, the system will be automatically flushed for 1 minute.

This function helps inhibit breeding effectively and ensure safe water.

RO system

Leakage protection function is originally built-in the system. If water leaks, malfunction will indicate E02 and buzzer will keep beeping. Just pull out the water container, clean the container and re-install it back, then the malfunction will be fixed automatically.

RO system

To extend the pump’s life as long as possible and reduce safety risks caused by forgetting to close the faucet, machine will alert and malfunction indicates E03 and buzzer beeps for three minutes if it keeps dispensing water over 30 minutes. If over 33 minutes, it will automatically stop dispensing water. You can re-power it on for normal use.

RO system

There will be a corresponding protection if a machine is frequently started and stopped by improper operation. When malfunction indicates E04 and buzzer beeps for five times., it will alert and automatically stop dispensing water. You can re-power the machine on to recover it.

Features & details

  • Three filters are included in the package. Search “Waterdrop WD-G3-W Filter” for replacement filters
  • [NSF Certified performance]: The system is certified against NSF 58 for TDS reduction. Using reverse osmosis filtration technology with a filtration accuracy of 0. 0001μm, the system can effectively remove most contaminants including fluoride, TDS, limescale, and heavy metals in your tap water. System is also NSF 372 certified for lead free material
  • [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, Waterdrop RO system can be installed completely, and in just three seconds, the filter can be changed with one single turn. Installation is that easy
  • [The first composite filter element]: It is the first smart RO system with composite filters and tankless design in the U. S. market. The three filters provide seven stages of filtration. The pre-sediment and carbon block filter is a 3-in-1 filter that functions as that of three filters combined. The Reverse Osmosis membrane filter adopts an innovative design, and the efficiency of the filter equals more than three stages of filtration. Additionally, the activated carbon block filter uses high-precision activated carbon granules made from natural coconut shell, which will also improve the water taste
  • [No-tank design]: Use new composite filter element technology to more efficiently filter out harmful substances. The tankless design helps you avoid secondary pollution and enjoy more storage space in your kitchen
  • [No waiting for clean water]: Thanks to its internal pump, the RO system offers faster water flow (400 gallons per day). The system can filter a cup of water in about 12 seconds. It can produce pure water quickly, thereby meeting the needs of your whole family and even small companies
  • [1: 1 low drain ratio]: Compared to traditional RO systems, Waterdrop Reverse Osmosis Water Filtration System saves water waste by 300%. Save money on your water bills while running the RO system
  • [Special notice]: You must fully turn on the faucet and flush the RO system for 30 minutes after installation. The light on the faucet will flash blue during flushing, but once completed, the blue light will stop flashing. The total water capacity will be about 8. 5 gallons and the water will be undrinkable during flushing. To save water, be creative and collect the water for other purposes, such as watering plants