G3 RO Filtration System & Ultrafiltration Water Filter | Double Pure Water

  • Brushed Nickel Faucet, RO and ultrafiltration membrane, giving you double pure and safe water.


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Key Feature

  • [Authority certification] G3 tankless reverse osmosis system is certified against NSF 58 for effective TDS reduction and NSF 372 for lead-free materials. The single-stage under sink water filter system is certified against NSF 372 standard for lead-free materials and NSF 42 standard for chlorine reduction. Additionally, the product is BPA-free.
  • [Easy installation] With complete components pack, the G3 under sink reverse osmosis system can be installed in only 30 minutes, and the single-stage filter installation only takes 3 minutes.
  • [Fast water flow and low drain ratio] The G3 RO under sink system features 400 GPD large capacity, delivering fast and stable water flow. The system saves more water and water bills with 1:1 low drain ratio.
  • [Multiple water filtration systems] Waterdrop reverse osmosis system adopts 7-stage filtration and filtration accuracy of single-stage water filter is 0.5-micron. You will enjoy pure water with protection by multi-layer purification.
  • [More convenient life with more intelligent features] The under sink RO system comes with multiple smart functions, including self-flushing, overwork protection, holiday mode and more. Make your life more convenient and wonderful with the company of Waterdrop G3.

G3 RO Filtration System & Ultrafiltration Water Filter | Double Pure Water

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G3 RO Filtration System & Ultrafiltration Water Filter | Double Pure Water

Model number:
RO system size:
18.06*5.68*17.76 inches
Feed water pressure:
14.5-87 psi/0.1-0.6 MPa
Feed water temperature:
Feed water requirement:
Municipal tap water
Max daily production rate:
400 GPD
Power specification:
Input 110-240V AC, 2.5A
Rated frequency:
50/60 Hz
Model number:
Operating temperature:
Flow rate:
0.75 gpm/2.83 lpm
Working pressure:
10-100 psi/0.7-6.8 bar
Filter capacity:
up to 11,000 gallons
Feed water requirement:
Municipal tap water
If water quality is something you are very demanding about, you should look into the Waterdrop G3 tankless reverse osmosis system and single-stage filter. They are the best choice and are very powerful for you and your family. The G3 RO 7-stage deep filtration system and a single-stage filter will give you fresh, pure water every time.

About The Waterdrop G3

Waterdrop g3 reverse osmosis system comes with a 7-stage filtration with a filter membrane with different materials to capture and block impurities and remove chlorine, foul tastes, and odors. This system also captures rust, solids, and other impurities. Your family deserves water that is safe and clean to keep them healthy. Waterdrop G3 RO reduces scales, heavy metals, chloramines, bacteria, viruses, TDS, and other harmful pollutants. The filter is a carbon block made of high-quality coconut shell to greatly improve the taste of your water. The MNR35 single-stage filter will filter out harmful elements but keep beneficial elements including potassium, calcium, sodium, and magnesium. These are elements that are great for the human body and ensure you will enjoy fresh, healthy drinking water every single day.
Not only will this unit ensure your vegetables, as well as your dishes, are free of contaminants. You and your family will be protected in many excellent ways.

The Waterdrop Single-Stage Water Filter

This unit is constructed of lead-free materials. Lead is a toxic chemical that comes from pipes in your home. Drinking water that is contaminated with lead is very bad for your overall health. Once absorbed into your body, the lead will be released into other areas of your body. It will enter your bones and teeth and cause softening of your bones and possible tooth loss.
Guaranteed, their products are made of 100% lead-free materials to protect yourself, your family, and friends.


The G3 tankless reverse osmosis system and single-stage filter can be installed in a matter of minutes. The G3 RO machine can be installed in 30 minutes and it only takes three seconds to change the core. The single-stage filter connects to the cold water supply system. The filter can be locked firmly by twisting the operation.

How to install the under sink water filter system combination of waterdrop G3 and 10UA?

The G3 RO under sink system can be installed in 30 minutes and the single-stage filter installation takes only 3 minutes. You will have a user manual with very clear instructions for installation and you can watch a video on installation to guide you through the process.

What is a reverse osmosis system and how does it work?

The RO or reverse osmosis is a water treatment procedure that will remove contaminants from water by applying pressure to force water molecules through the semipermeable membrane. Contaminants are pushed out and flushed away, leaving only clean, tasty drinking water.
This is why any home should have an under sink RO water filter. The water is safer for hydrating, cooking, and preparing beverages. The RO procedure will reduce potential contaminants and the water is better than water found in most single plastic water bottles.
Waterdrop tankless reverse osmosis system is perfect for removing numerous contaminants from your water. It might be the perfect solution when you experience high levels of certain contaminants that will be economically removed. It has been suggested a complete house reverse osmosis is the best solution for any contaminants.

Do you need reverse osmosis with well water?

Yes, the Waterdrop reverse osmosis system is excellent for treating well water. If you install this system, you will enjoy pure, clean water free of viruses, bacteria, iron, nitrates, chloride, and idle microorganisms. It's achieved using the core of the RO purification procedure. The membrane only passes the particles that are no larger than water molecules and only blocks damaging particles giving you the very purest water. Treat your well water with a pre-filter before using reverse osmosis because particles in well water can block and damage the RO system.

How do I change my under sink RO water filter?

It's actually very easy. Just pull and remove the expired water filter and then insert a new filter.

How often do you change under sink RO water filter?

The CB filter will last for 12 months. The CF filter lasts 6 months, and the RO filter lasts for 24 months. The filter should be changed according to the recommended lifespan.

How often to change an under sink water filter?

The under sink water filter will give you 8,000 gallons of water, protecting you for 12 months. It will depend on local water quality.

Are under sink water filters easy to install?

The installation will not take more than 3 minutes with its twist-and-pull design.

What does a Waterdrop G3 reverse osmosis system remove?

The Waterdrop G3 reverse osmosis system will remove chemical contaminants including metal ions, aqueous salt including sodium, chloride, copper, chromium, and lead. It can also reduce arsenic, fluoride, radium, sulfate, calcium, potassium, nitrate, magnesium, and phosphorous.

Does reverse osmosis remove bacteria?

Yes, because the bacteria are larger than the pores in the reverse osmosis membrane, they will be removed via reverse osmosis (i.e., they will not be able to pass through).
Tap water contains various bacteria, impurities and heavy metals which are invisible.
Can you really use it at ease?
Pure Water In All Aspects Of Life
We'll provide you with water purification solution for both drinking or other use.
You'll get purified water from two faucets. Water from one faucet passing double-stage filtration is completely pure, and water from another faucet passing single-stage filter retains premium minerals. All your needs will be satisfied for daily drinking or cooking.
Meet Dual Needs For Drinking & Daily Use
Drinking water is purified by tankless reverse osmosis system and single-stage water filter. Enjoy purity in your first sip. Water for washing vegetables, fruits or cooking is purified by single-stage water filter. Ensure water safety from source.
Multiple Certifications Assure Top Quality
Waterdrop tankless reverse osmosis system is tested and certified against NSF/ANSI standard 58 for 91.9% TDS reduction and NSF/ANSI standard 372 for lead-free materials.
Single-stage under sink water filter system adopts premium lead-free materials, which are fully certified by the WQA against NSF 372 standard. BPA-free materials are also ensured. Effective chlorine reduction is certified against NSF 42 standard by the WQA.
System is tested and certified by NSF International against NSF/ANSI Standard 58 for the reduction of TDS, and against NSF/ANSI 372 (≤0.25% lead).
Deliver Healthy Water With Highly-Precise Filtration
Single-stage under sink water filter system reduces rust, sediments and other impurities in water while retaining trace elements like potassium, calcium, sodium and magnesium. We give the best care for your health.
7-stage filtration delivered by Waterdrop reverse osmosis eliminates chlorine, TDS, water scale, heavy metals and other contaminants, restoring truly pure water drops.
Smart Design
Monitor water quality all day long. Smart screen displays real-time water quality.
Unique faucet indicates filter lifespan, reminding you of replacing filter timely. Enjoy pure water always.
Quick Replacement Experience
The RO water system under sink and single-stage water filter feature twist to replace design. The convenient and easy replacement takes only 3 seconds all by yourself!
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Need Installation
Beneficial Minerals × × × × ×
Flow Rate 400 GPD 800 GPD 600 GPD 400 GPD 600 GPD 400 GPD
Pure to Drain Rate
Drain ratio stands for the ratio of wastewater and purified water dispensed by a RO system. For example, the 3:1 drain ratio means it uses up a gallon of wastewater for every 3 gallons of pure water you get.
Pure to Drain Rate Pure to Drain Rate Pure to Drain Rate Pure to Drain Rate Pure to Drain Rate Pure to Drain Rate
Faucet Smart faucet Smart faucet Smart faucet Ordinary faucet Ordinary faucet Ordinary faucet
Display Filter lifespan & TDS Filter lifespan & TDS Filter lifespan & TDS Filter lifespan Filter lifespan Filter lifespan
Self-clean × ×
Holiday mode × × ×
Electricity Required
Filter Cartridges WD-G3-N1CF







Noise(≤) 65dB 65dB 55dB 55dB 55dB 55dB
Filter Lifespan CF-6 Mths
CB-12 Mths
RO-24 Mths
CF-6 Mths
CB-12 Mths
RO-24 Mths
12 Mths 12 Mths CF-12 Mths
P6MRO-24 Mths
MNR-12 Mths
CF-12 Mths
MRO-24 Mths
Dimensions (inch) 18.11*5.67*17.72 18.11*5.67*17.72 15.98*5.98*11.97 16.02*6.22*12.44 17.32*5.91*13.9 17.32*5.91*13.9




Filtration Media PP Cotton and Cotton Block Reverse Osmosis Membrane Activated Carbon Block
Filter Lifespan 6 months or 550 gallons 24 months or 2,200 gallons 12 months or 1,100 gallons
Size (Diameter * Height) 3.3"*12.1" 4.3"*15" 2.6"*12.1"
Compatible Model WD-G3-W WD-G3-W WD-G3-W
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