---
product_id: 188180028
title: "Waterdrop G2 Reverse Osmosis System, 7 Stage Tankless RO Water Filter System, Under Sink Water Filtration System, 400 GPD, 1:1 Pure to Drain, Reduces TDS, FCC Listed, USA Tech, WD-G2-W"
brand: "waterdrop"
price: "656741CFA"
currency: XOF
in_stock: true
reviews_count: 9
category: "Waterdrop"
url: https://www.desertcart.sn/products/188180028-waterdrop-g2-reverse-osmosis-system-7-stage-tankless-ro-water
store_origin: SN
region: Senegal
---

# 400 GPD ultra-fast flow Tankless design saves 70% under-sink space 7-stage NSF/ANSI 372 certified filtration Waterdrop G2 Reverse Osmosis System, 7 Stage Tankless RO Water Filter System, Under Sink Water Filtration System, 400 GPD, 1:1 Pure to Drain, Reduces TDS, FCC Listed, USA Tech, WD-G2-W

**Brand:** waterdrop
**Price:** 656741CFA
**Availability:** ✅ In Stock

## Summary

> 💧 Drink smart, live sharp — water filtration redefined.

## Quick Answers

- **What is this?** Waterdrop G2 Reverse Osmosis System, 7 Stage Tankless RO Water Filter System, Under Sink Water Filtration System, 400 GPD, 1:1 Pure to Drain, Reduces TDS, FCC Listed, USA Tech, WD-G2-W by waterdrop
- **How much does it cost?** 656741CFA with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/188180028-waterdrop-g2-reverse-osmosis-system-7-stage-tankless-ro-water)

## Best For

- waterdrop enthusiasts

## Why This Product

- Trusted waterdrop brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Quiet & Leak-Resistant:** Airtight housing minimizes noise and leakage, ensuring a seamless, worry-free filtration experience.
- • **Speed Meets Efficiency:** Delivers up to 400 gallons per day with a 1:1 pure-to-drain ratio, cutting water waste by 300%.
- • **Sleek Tankless Innovation:** Tankless design frees up over 70% of your under-sink space—compact, modern, and efficient.
- • **Pure Powerhouse Filtration:** 7-stage NSF/ANSI 372 certified system removes TDS, PFAS, lead & more for crystal-clear water.
- • **Effortless Installation & Maintenance:** Integrated design with twist-and-pull filters lets you install in under 30 minutes and replace filters in 3 seconds.

## Overview

The Waterdrop G2 is a cutting-edge 7-stage tankless reverse osmosis system delivering up to 400 gallons of purified water daily with a highly efficient 1:1 pure-to-drain ratio. NSF/ANSI 372 certified, it removes contaminants like lead, PFAS, and TDS while saving over 70% under-sink space. Its integrated, quiet design enables easy installation and ultra-fast filter changes, making it the perfect upgrade for health-conscious professionals seeking premium water quality without compromise.

## Description

Waterdrop G2 Reverse Osmosis System, 7 Stage Tankless RO Water Filter System, Under Sink Water Filtration System, 400 GPD, 1:1 Pure to Drain, Reduces TDS, FCC Listed, USA Tech, WD-G2-W - desertcart.com

Review: Works well, easy to install, and quality is confirmed with routine TDS measurements. - 6 month review: Water tastes similar to vending machines and water stores. I have consistently measured filtered water TDS at 8-12 ppm. The discarded water measures TDS anywhere between 300-600 and it tastes like armpit sweat, so it is definitely working on both instrument analysis as well as taste test. I collect discarded water for watering house/patio plants, but it's nice that discard volume is low (1:1). It's installed in the garage sink and use it mainly for filling 5 gallon jugs (with food grade silicone tubing attached to the faucet into jugs) that are also stored in the garage. It takes around 5-7 minutes to fill 5 gallons. I appreciate the clean design as the main unit is installed under a utility sink where it is easily visible.
Review: Quality Product that Performs - I don't normally take time to do product reviews. This product has inspired me. I have had it installed for a little more than a month, and so far, it performs as described. The water is clear, clean and great! I even split the output line and ran it to my refrigerator. The almost clear ice and cold water from my dispenser is a great blessing and it gets used a lot. The installation is easy as promised. I seldom have DIY projects that I don't have to run to the hardware store one or more times. Everything that you need comes in the package and the instructions are sufficient for a reasonably handy person. The one real difficulty is mounting the provided faucet. Making the hole in your counter or sink is installation dependent. I already had a hole from a previous RO product. I had difficulty tightening the nut to secure the faucet. My mounting hole is positioned between the wall and the back of the kitchen sink. I would recommend a basin wrench if you have on available. The price of the replacement cartridges is a little high...about $140 for a 2 year period of operation. But, if the unit continues to perform, I would say that it is very much worth it. I particularly like the 1:1 efficiency of the RO. My previous unit was a terrible waste of water and made an annoying noise when it was back flushing itself. I will probably follow this review up with another when it comes time to change the first cartridge in a year.

## Features

- 𝐍𝐒𝐅/𝐀𝐍𝐒𝐈 𝟑𝟕𝟐 𝐂𝐞𝐫𝐭𝐢𝐟𝐢𝐞𝐝 & 𝟕-𝐬𝐭𝐚𝐠𝐞 𝐟𝐢𝐥𝐭𝐫𝐚𝐭𝐢𝐨𝐧 & 𝟒𝟎𝟎 𝐆𝐏𝐃 & 𝟏:𝟏 𝐥𝐨𝐰 𝐝𝐫𝐚𝐢𝐧 𝐫𝐚𝐭𝐢𝐨 & 𝐓𝐚𝐧𝐤𝐥𝐞𝐬𝐬 𝐃𝐞𝐬𝐢𝐠𝐧 & 𝐄𝐚𝐬𝐲 𝐢𝐧𝐬𝐭𝐚𝐥𝐥𝐚𝐭𝐢𝐨𝐧; Two filters are included in the package. Search "WD-G2-W" for replacement filters.
- 𝟕 𝐒𝐭𝐚𝐠𝐞 𝐅𝐢𝐥𝐭𝐫𝐚𝐭𝐢𝐨𝐧 & 𝐞𝐟𝐟𝐞𝐜𝐭𝐢𝐯𝐞 𝐟𝐢𝐥𝐭𝐫𝐚𝐭𝐢𝐨𝐧:The G2 system is certified by 𝐍𝐒𝐅/𝐀𝐍𝐒𝐈 𝟑𝟕𝟐 for lead-free materials. The G2 RO System adopts a composite filter result in more effective filtration. Our RO system can reduce TDS, PFAS, PFOA, PFOS, vinyl chloride, monobutyl ether, according to reverse osmosis membrane technical manual.
- 𝟒𝟎𝟎 𝐆𝐏𝐃＆𝟏:𝟏 𝐩𝐮𝐫𝐞 𝐭𝐨 𝐝𝐫𝐚𝐢𝐧 𝐫𝐚𝐭𝐢𝐨: The Waterdrop G2 reverse osmosis system offers a fast water flow rate of up to 400 GPD. Get a cup of filtered water in about 12 seconds, satisfying your needs while saving time. Compared to the ordinary RO system, the Waterdrop RO system always has a stable water flow. This tankless RO has a low drain ratio of 1:1 and saves water waste by 300%.
- 𝐈𝐧𝐧𝐨𝐯𝐚𝐭𝐢𝐯𝐞 𝐭𝐚𝐧𝐤𝐥𝐞𝐬𝐬 𝐝𝐞𝐬𝐢𝐠𝐧: The tankless design ensures the safety of your family’s drinking water. It also saves over 70% more under-sink storage space than does the ordinary RO system. Note that this reverse osmosis system requires under-sink electricity.
- 𝐈𝐧𝐭𝐞𝐠𝐫𝐚𝐭𝐞𝐝 𝐩𝐫𝐨𝐝𝐮𝐜𝐭 𝐝𝐞𝐬𝐢𝐠𝐧: The advanced integrated design of the electrical and water circuits reduces leakage. The airtight housing reduces noise, while the process of installing and replacing the filter is faster and more convenient than with other filters. Due to the filters’ twist-and-pull design, you can replace them in 3 seconds. The installation of the RO System takes less than 30 minutes. NOTE: An electrical outlet and drilling holes is required to operate it.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B082CZ9XZ9 |
| Best Sellers Rank | #9,670 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #25 in Under-Sink & Countertop Filtration |
| Brand | Waterdrop |
| Date First Available | December 5, 2019 |
| Installation Type | Under Sink |
| Item Weight | 25 pounds |
| Item model number | WD-G2-W |
| Lower Temperature Rating | 41 Degrees Fahrenheit |
| Manufacturer | Waterdrop |
| Maximum Flow Rate | 0.28 Gallons Per Minute |
| Model Name | WD-G2-W |
| Package Information | Cartridge |
| Power Source | In-built Stored Cord |
| Product Dimensions | 17.33"L x 5.91"W x 13.98"H |
| Special Feature | Tankless |
| Supported Water TDS Level Maximum (PPM) | 300 |
| UPC | 840814169582 |
| Upper Temperature Rating | 100 Degrees Fahrenheit |

## Product Details

- **Brand:** Waterdrop
- **Capacity:** 400 Gallons
- **Included Components:** RO system, MRO、CF filter, Faucet, PE pipes *3, T-fitting, Drain Saddle
- **Installation Type:** Under Sink
- **Package Information:** Cartridge
- **Power Source:** In-built Stored Cord
- **Product Dimensions:** 17.33"L x 5.91"W x 13.98"H
- **Purification Method:** Reverse Osmosis
- **Special Feature:** Tankless

## Images

![Waterdrop G2 Reverse Osmosis System, 7 Stage Tankless RO Water Filter System, Under Sink Water Filtration System, 400 GPD, 1:1 Pure to Drain, Reduces TDS, FCC Listed, USA Tech, WD-G2-W - Image 1](https://m.media-amazon.com/images/I/61o5z6FqtPL.jpg)

## Available Options

This product comes in different **Color, Size** options.

## Questions & Answers

**Q: How is this different than the wd-g3-w?**
A: Dear Customer,

Thank you very much for reaching out to us.
Both G2 and G3 are smart under sink water filtration systems using reverse osmosis technology. Designed for easy installation, both of the models are tankless with the integrated waterway and composite filters. The water flow for G2 and G3 are both 400 GPD, 0.28GPM with the 1:1 drain water ratio.
The G2 model is an economical option compared with G3 in terms of water filtration performance. Here’s some major difference between the two models, which I will elaborate for you from several aspects.
●Filters: G2 has two composite filters with 5-stage filtration; G3 contains three composite filters with 7-stage filtration.
●Filter life:
○G2: one year CF filter, two years RO filter
○G3: six months CF filter, one year CB filter, two years RO filter
●RO faucet:
○G2: no need to plug in the faucet.
○G3: Cable smart faucet with filter life indicator, the faucet has a light loop to indicate filter life in different colors.
●Front panel:
○G2: Filter life indicating display panel.
○G3: Filter life indicating with a real-time TDS reading LED display panel.
●Certificates:
○G2: FCC Approved
○G3: FCC Approved, UL Listed, NSF 58 & NSF 372 Certified, Reddot Design Award
To enhance the user experience, compared with G2, G3 has added some additional features and designs:
●Automatic flushing: the system will be automatically flushing under the following circumstances
○Flush for accumulative working time over 2 hours
○Flush for No Working within 24 hours (Holiday Mode)
○Flush for power restore
●System self-protection
○E01: Water shortage
○E02: Inside water leakage
●Anti-vibration pad: The G3 unit adds rubber anti-vibration pads to increase stability and reduce noises.
In a word, both the G2 and G3 are great filtration systems that can achieve the same filtration performance to effectively removes more than 1,000 contaminants in water. Waterdrop dedicated to identify local and global trends and translate these into meaningful innovations to meet consumer demands. Your satisfaction has always been our top priority, and we here at Waterdrop will strive to bring you the best water purification experience. Please feel free to contact me if you have any other questions, I’m here to help.
Have a good day.

Best regards,
Mia Lauren

**Q: I plan to add an inline remineralizer between the unit and faucet dispenser. Is the tubing 1/4 or 3/8 inches?**
A: Hello,

Thanks for your interest in our Waterdrop WD-G2-B Reverse Osmosis System.
In theory, you can add an inline remineralize filter between the RO system and the faucet dispenser. But if you do that, there may be some risks that will have a negative impact on the RO system. 
Please note the following points when adding an inline remineralize filter:
1. The size of RO filtered water tubing is 1/4", please confirm whether the size of the inline remineralize filter's will match.
2. With the increase of the pH, the filter material will generate more gas which is easy to cause the pressure inside the tube rises, and the following situation arises.
a. if the housing material of the remineralize filter you use is not solid enough, it is easy to explode with the high pressure. 
b. if the gas can not discharge in time, the pressure inside the tube becomes higher, the pressure may reversely entry into the RO system, which causes serious damage to the RO system and affects the normal use of the system. 
c. when you open the faucet, it can not dispense water immediately. Because it has to bleed out the gas inside the tube first.
If you have any questions, please feel free to give us a call between the hours of 8:00 AM-5: 00 PM (PST), Monday through Friday at 1-888-352-3558. We will try our best to help you out. Thank you very much.

Best Regards,
Mia Lauren

**Q: Is this unit remove fluoride from the water?**
A: Hi Kuzma,

Thanks for your interest in our Waterdrop WD-G2-B Reverse Osmosis System.
Our RO system uses reverse osmosis filtration technology with 8 layers of MRO membranes with a pore size of 0.0001um, the system can remove most contaminants including up to 90% of fluoride in water.
If you have any questions, please feel free to give us a call between the hours of 8:00 AM-5: 00 PM (PST), Monday through Friday at 1-888-352-3558. We will try our best to help you out. Thank you very much.

Best Regards,
Mia Lauren

**Q: Would this system filter sodium out of my well water?**
A: Hi,
Thanks for your interest in our Waterdrop G2 RO System.
Yes, as a benefit of the RO membrane (filtration accuracy: 0.0001μm), this product is able to remove the sodium from the source water.

However, compared to municipal tap water, the well water is rich of large particles, which will clog the CF & RO filter easily, and shorten their lifetime significantly.

Therefore, it's recommended to add a pre-filteration system before the RO system, in order to prolong the filters' lifetime.

In addition, the well water may not be able to provide the feed water pressure that the RO system needs. Furthermore, the water pressure will be even lower after the pre-filtration systems.

So it's recommended to confirm that your feed water pressure meets the RO system's requirement, which is 14.5-87 psi.

The customer's satisfaction is always our top concern. If you have any questions, please feel free to give us a call at: 
1-888-352-3558 (8:00 AM - 5:00 PM PST, Mon - Fri).

Kind Regards 
Mia Lauren 
Customer Service Rep

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works well, easy to install, and quality is confirmed with routine TDS measurements.
*by B***O on February 1, 2026*

6 month review: Water tastes similar to vending machines and water stores. I have consistently measured filtered water TDS at 8-12 ppm. The discarded water measures TDS anywhere between 300-600 and it tastes like armpit sweat, so it is definitely working on both instrument analysis as well as taste test. I collect discarded water for watering house/patio plants, but it's nice that discard volume is low (1:1). It's installed in the garage sink and use it mainly for filling 5 gallon jugs (with food grade silicone tubing attached to the faucet into jugs) that are also stored in the garage. It takes around 5-7 minutes to fill 5 gallons. I appreciate the clean design as the main unit is installed under a utility sink where it is easily visible.

### ⭐⭐⭐⭐⭐ Quality Product that Performs
*by D***. on August 8, 2025*

I don't normally take time to do product reviews. This product has inspired me. I have had it installed for a little more than a month, and so far, it performs as described. The water is clear, clean and great! I even split the output line and ran it to my refrigerator. The almost clear ice and cold water from my dispenser is a great blessing and it gets used a lot. The installation is easy as promised. I seldom have DIY projects that I don't have to run to the hardware store one or more times. Everything that you need comes in the package and the instructions are sufficient for a reasonably handy person. The one real difficulty is mounting the provided faucet. Making the hole in your counter or sink is installation dependent. I already had a hole from a previous RO product. I had difficulty tightening the nut to secure the faucet. My mounting hole is positioned between the wall and the back of the kitchen sink. I would recommend a basin wrench if you have on available. The price of the replacement cartridges is a little high...about $140 for a 2 year period of operation. But, if the unit continues to perform, I would say that it is very much worth it. I particularly like the 1:1 efficiency of the RO. My previous unit was a terrible waste of water and made an annoying noise when it was back flushing itself. I will probably follow this review up with another when it comes time to change the first cartridge in a year.

### ⭐⭐⭐⭐⭐ H2O expert impressed
*by M***S on December 24, 2024*

I owned a successful marine aquarium service company for 15+ years and have been a reef tank hobbiest for more than 30 years. I know a lot about water quality, both for my reef tank water changes, and for my daily drinking water. I manufacture my aquarium water using RODI technology (reverse osmosis deionization), the only practical method for producing lab grade water with 0.0 TDS (Total Dissolved Solids). This takes constant digital testing of both my input city water and the output water after my filter. I am sure I have bored you to sleep but please WAKE Up. (In case you wonder why I don't simply drink the water from my RODI filter, one would need to add minerals back to it first before it would be safe to consume on any type of regular basis.) Now you know why I wanted a separate, dedicated Reverse Osmosis drinking water system for my family. After I Installed the Waterdrop Tankless Reverse Osmosis unit, (a very straight forward task that honestly should take the average person about 1/3rd the time of an old technology RO filter with pressurized water tank for drinking water), I was shocked to test the output water at the included metal faucet at a low TDS of just 3 PPM. My city water entering the Tankless system is currently at 140ppm. The fact that the Waterdrop system improves the water quality to only 3ppm without the use of dionization is AMAZING. Also, I turn on the filter and immediately test the water, thus there is no wait time required to let the water run before it is ready to drink. I have had my Tankless system running for months and it is rock solid at 3ppm. It is clean, delicious drinking water from an attractive, compact unit. I could not be more pleased. I also want to speak to the customer service I experienced. Unfortunately, after about 2 months of use, the 400GPD system would not turn on. I was really surprised when this occurred and emailed Waterdrop support without delay. Although I was well past the Amazon 30 day return period, the representative clearly cared about customer satisfaction and shipped me out a new, complete upgraded 600 GPD unit and a return postage paid shipping label for my original 400 GPD unit. He also sent me a free extra filter cartridge for the inconvenience I had experienced. I have had this replacement unit running for months without any issues. I would give Waterdrop 10 stars if it was allowed. Thanks for reading my lengthy, but honest review. Please buy a Waterdrop Tankless Reverse Osmosis filter, you will not be sorry you did!

## Frequently Bought Together

- Waterdrop G2 Reverse Osmosis System, 7 Stage Tankless RO Water Filter System, Under Sink Water Filtration System, 400 GPD, 1:1 Pure to Drain, Reduces TDS, FCC Listed, USA Tech, WD-G2-W
- Waterdrop Remineralization Under Sink Water Filtration, 1/4” Quick Connect Post Filter for RO Reverse Osmosis Filter System, Restore Essential Minerals

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*Product available on Desertcart Senegal*
*Store origin: SN*
*Last updated: 2026-02-27*