Waterdrop G3 under sink RO system water filter kit, 2-year Combo
Waterdrop G3 under sink RO system water filter kit, 2-year Combo
Waterdrop G3 under sink RO system water filter kit, 2-year Combo
Waterdrop G3 under sink RO system water filter kit, 2-year Combo
Waterdrop G3 under sink RO system water filter kit, 2-year Combo
Waterdrop G3 under sink RO system water filter kit, 2-year Combo
Waterdrop G3 under sink RO system water filter kit, 2-year Combo
Waterdrop G3 under sink RO system water filter kit, 2-year Combo
Waterdrop G3 under sink RO system water filter kit, 2-year Combo
Waterdrop G3 under sink RO system water filter kit, 2-year Combo
Waterdrop G3 under sink RO system water filter kit, 2-year Combo
Waterdrop G3 under sink RO system water filter kit, 2-year Combo
Waterdrop G3 under sink RO system water filter kit, 2-year Combo
Waterdrop G3 under sink RO system water filter kit, 2-year Combo
Waterdrop G3 under sink RO system water filter kit, 2-year Combo
Waterdrop G3 under sink RO system water filter kit, 2-year Combo
Waterdrop G3 under sink RO system water filter kit, 2-year Combo
Waterdrop G3 under sink RO system water filter kit, 2-year Combo
Waterdrop G3 under sink RO system water filter kit, 2-year Combo
Waterdrop G3 under sink RO system water filter kit, 2-year Combo

Waterdrop G3 under sink RO system water filter kit, 2-year Combo

Model: Waterdrop G3 & WD-G3-N1CF & WD-G3-N3CB
$548.97
$548.97
WD-G3-W & Extra plus 1-Year Combo Replacement Filter
WD-G3-W
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  • Key Feature
    • [1: 1 low drain ratio] Compared to traditional RO systems, Waterdrop Under sink RO System saves water waste by 300%. Save money on your water bills while running the RO system.
    • [No waiting for clean water] Waterdrop G3 RO system offers faster water flow (400 gallons per day), can filter a cup of water in about 12 seconds meeting the needs of your whole family.
    • [NSF 58 & 372 certified] The Waterdrop reverse osmosis system is tested and certified by NSF International against NSF/ANSI standards.
    • [Waterdrop G3 RO systems water filter kit] The water filter kit comes with 6 Filters (3 CF filters, 2 CB filters, and 1 RO filter),which include filters inside the system already. The RO system kit could help you save money and time by purchasing a replacement Filter 2-Year Combo in one kit together rather than individually.
  • Related Blog
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Shipping policy

Shipping rates and delivery estimates


Shipping Method

Estimated Delivery Time

Costs

Economy Shipping

4-8 Business Days

Free

Standard Shipping

3-6 Business Days

$5.99 (Free on orders over $200)

Express Shipping

2-3 Business Days

$10.99 (Package Weight: Under 9 lb)
$26.99 (Package Weight: 9 - 22 lb)
$42.99 (Package Weight: Over 22 lb)

* Shipping charges for your order will be calculated and displayed at checkout.

* Delivery time is based on the shipping date, not the order date. Please note that actual shipping dates may be delayed due to factors such as invalid shipping addresses, weekends, or holidays.


Handling Time:

We need 24 to 48 hours to prepare your order. Most packages will be shipped within 24 hours, excluding weekends and holidays.


Track your order

Once your order has shipped, you'll receive an email with tracking information. You can also find tracking details on your "Order Details" page.


Shipping origin

The package will be shipped from one of our US warehouses closest to your location.

* If you have any questions, feel free to contact our customer service via LiveChat or email us at service@waterdropfilter.com. We will respond as soon as possible!


Shipping areas

We deliver to most U.S. states. Some products can be shipped to Alaska and Hawaii for an additional shipping fee. However, We currently do not deliver to American Samoa, Micronesia, Guam, Marshall Islands, Northern Mariana Islands, Palau, Puerto Rico, and the U.S. Virgin Islands.


International shipping

Unfortunately, we do not support international shipping at this time.


Shipping Carriers

We partner with four carriers—UPS, USPS, FedEx, and Amazon Logistics US—to ensure timely delivery

Note: We cannot accommodate specific carrier requests.


Delivery Time Exceeded

Shipping delays may occur due to weather, natural disasters, carrier issues, or high-risk orders. If your order is delayed, please contact us at service@waterdropfilter.com, and we will check the situation with the transportation company promptly. Thank you for your understanding and support.


Sales Tax

Sales tax will be collected as required by U.S. law for deliveries to the following states: AZ, CA, CO, FL, GA, IL, IN, KY, MA, MD, MI, MN, NC, NJ, NV, NY, OH, PA, TX, UT, VA, WA, WI. Rates are determined by local governments, and all collected taxes will be promptly reported to the IRS.

30-Day Return ×
No Worries Guarantee

Thank you for shopping at Waterdrop. We appreciate your decision to purchase our products and aim to ensure a rewarding experience throughout your exploration, evaluation, and purchase process.


Order Cancellations:


If you wish to cancel an order, please contact our customer service team.


1. If you contact us within 24 hours of purchase:


Since most orders ship the same day, kindly email us at contact service@waterdropfilter.com or call us at (888)-352-3558 within 24 hours of placing the order. There will be no cancellation fees for standard items canceled before shipment. If the package has already been shipped, we will provide a prepaid label for return, and once we receive the package from you, we will issue a refund.


2. If you contact us after 24 hours of purchase:


  • In such cases, you will need to bear the shipping fee if the package is already shipped (subject to our system status, not the order status).
  • The product must be damage-free, packed in the original packaging we sent to you, and returned with the original receipt of purchase.
  • We will process your refund after receiving the package.

30-day Risk-free Return Policy:


  • You are eligible to return any item* within 30 days of receipt.
  • All returned items must be disassembled and repackaged as they were originally received.
  • The 30-day risk-free return policy applies to all item*.
  • No restocking fee will be charged, but customers are responsible for the return shipping cost. We will cover the return postage expenses in the case of any return requests related to a quality issue.
  • Please note that the 30-day risk-free return policy is only valid for orders* within the continental United States.


Return after 30 Days of Receipt:


  • You may still return any item after 30 days of receipt.
  • In this case, customers are responsible for the return shipping cost. The total cost of shipping will be deducted from your refund.
  • All returned items must be disassembled and repackaged as they were originally received.
  • A 10% restocking fee will be applied to all returned products. However, in the event of any return requests related to a quality issue, we offer free returns or replacement with a new product.


1-year Warranty:


Enjoy peace of mind and confidence in your purchase with our 1-year warranty, backed by lifetime technical support.


If you receive a damaged item and wish to file a claim, please email service@waterdropfilter.com with your order information and a picture of the damaged or incorrect product. We are eager to assist you.


For products that become defective during the warranty period due to a quality issue, rather than your own breakage or misuse, we can accept a free return, provide free repair service, or issue a new replacement.


Exchange Policy:


1. Defective Products:


If you receive a product with quality issues or damages, please contact our customer service team within 30 days of receipt. We will provide you with a free exchange service. Please provide order information and photos of the damaged product when contacting our customer service team for better assistance.


2. Non-Quality Issues:


If you wish to exchange a product for non-quality-related reasons, please note the following:


  • The product must be within 30 days of purchase and unused.
  • The product must be returned in its original packaging, along with the original purchase receipt.
  • You will be responsible for the re-shipping costs.
  • Please note that the exchange policy is only applicable to orders made on the official waterdropfilter.com.

How to Return a Product?


If you would like to return a product, please follow these guidelines:


Step 1: Contact our customer service team before returning a product. We will respond with return instructions within 24 hours.


How to contact us:

Email: service@waterdropfilter.com

Toll-free Tel: (888)-352-3558


Step 2: Prepare the package after receiving confirmation from the customer service team, and please note the following requirements:


  • Include the order number in the package. You can print out the order detail page or leave a note inside the package.
  • Ensure the package contains the original receipt of purchase.
  • Return the product in the original packaging we provided.
  • The product must be damage-free (this does not apply to defective products, as damage will void the refund).

Step 3: Contact our customer service and provide your return tracking number. We will track the package and process your refund within 5 working days after receiving and inspecting the package.


General Information for All Returns:


1. Defective Products:

If you receive a product with quality issues or damages, please contact our customer service team. we provide free returns, replacement with a new product, and comprehensive technical support.


2. Non-Quality Issues:


  • You are responsible for shipping the products to the return address provided.
  • Returned items will undergo inspection before issuing a refund.
  • Refunds will be processed within 5 working days after the item has been inspected, and it may take 4-7 days to be reflected in your credit card statement.
  • We highly recommend using a traceable and insurable shipping method for your return. We are not responsible for returns lost or damaged in transit, and you will need to file a shipping claim.
  • Please note that orders made via 3rd-party sellers, including Amazon, are not eligible for our return policy.
  • All returned items must be disassembled and repackaged as they were originally received. Items returned in a condition other than "like new" will be subject to a 10% restocking fee to cover repairs or part replacement. The restocking fee will be deducted from your refund.

Return Address:


Ecolife Technologies, Inc.

1951 S Lynx Pl,

Ontario, CA 91761

United States

Tel: 888-352-3558


Price Match Policy:


At Waterdrop, we highly value our customers' shopping experience. That's why we offer a 30-day price match guarantee. If you happen to notice a price reduction on the item you purchased at waterdropfilter.com within 30 days of your purchase, you are eligible to claim a price-match refund. To request a refund, please contact us at service@waterdropfilter.com. We are here to assist you promptly.


Note: This Waterdrop price-change refund policy only applies to items shipped and sold by waterdropfilter.com. If you're buying from a different vendor, you'll need to contact that seller if the price drops.

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Hear it Straight From Our Pros and Users 
Model number
Waterdrop G3
Certification
NSF 58 & 372
Materials
System cover: BPA-free plastic

                    Faucet: metal + LED indicator light

                    RO filter: reverse osmosis membrane

                    CB filter: carbon block

                    CF filter: PP cotton & carbon block

                    
Power cord length
90 inches
Product dimensions
18.11 x 5.67 x 17.73 inches
Item weight
15.44 pounds
Faucet
Brushed nickel faucet
Included components
System cover, brushed nickel faucet/chrome faucet, RO filter, CF filter, CB filter, PE pipes *3 ( 60" ), T-fitting, drain saddle, lock clips, power adapter (Main power cable 90", faucet's power cable 59")
Flow rate
0.28 gallon per minute (GPM), 400 gallons per day (GPD)

What is reverse osmosis water systems?

Reverse osmosis (RO) is a water purification process that uses a partially permeable membrane to filter out impurities from drinking water. In reverse osmosis, an applied pressure is used to overcome osmotic pressure, a colligative property that is driven by chemical potential differences of the solvent, a thermodynamic parameter. The result is that the solute is retained on the pressurized side of the membrane and the pure water is allowed to pass to the other side. To be "selective", this membrane should not allow large molecules or ions through the pores, but should allow filtered clean water to pass freely.

How does a reverse osmosis system work?

A reverse osmosis system reduces sediment and chlorine from water with a prefilter before it forces water through a semipermeable membrane to reduce dissolved solids. After water exits the RO membrane, it passes through a postfilter to filter the drinking water before it enters a faucet.

How long do reverse osmosis filters last?

The life of the filter element of our machine depends on the two indexes of service time and pure water after filtration. As long as one of them reaches the upper limit, it needs to be replaced. The first stage front compound filter element is recommended to last for 6 months or to filter 550 gallons of pure water. The second stage RO element is recommended to last 24 months or to filter 2200 gallons of pure water. The third stage rear carbon rod filter is recommended to last 12 months or to filter 1,100 gallons of pure water. Due to the different water quality and water consumption of each house, the actual replacement time of the filter element is not consistent. The actual use situation shall prevail. When the filter element needs to be replaced, the prompt light on the machine and the lamp ring of the faucet will prompt through the color change. You can replace it according to the prompt, which is very convenient.

Is this under sink reverse osmosis system unit suitable for well water?

We do not recommend using well water as source for our RO systems.
The reasons are as follows:
1. Large particles.
Compared to municipal tap water, the well water is rich of large particles, which will clog the filters easily, and shorten their lifetime significantly.Please note that the filters will still need to be replaced more frequently, even if you have added a pre-filtration system.
2. Composition
The well water has very complicated compostion, and some of them (apart from the large particles) can cause the filter or internal valve to be clogged and prevent the RO system from normal performance.
3. Water pressure
The well water may not provide the feed water pressure that the RO system requires (14.5 psi min.). Furthermore, the water pressure will be even lower after passing through pre-filtration systems.

What is the minimum water pressure to operate this unit?

The rated water inlet pressure of the machine is 14.5-87psi. It can work properly within this range.

Is the water line hose 1/4" or 3/8"?

Inlet tubing: 3/8", Outlet tubing (connect with RO faucet): 1/4", Feed water adapter: compatible with 3/8" and 1/2" water line.

What does Pure to Drain Rate mean?

The undersink reverse osmosis water filter relies on a semi-permeable membrane to filter out impurities from drinking water. When the tap water is compressed through the RO membrane, it produced pure water and waste water. The ratio of pure water to waste water is called wastewater ratio. 1:1 wastewater ratio means 1 gallon water is wasted per 1 gallon purified, and 2:1 wastewater ratio means 1 gallon water is wasted per 2 gallon purified. The higher the wastewater ratio is, the less waster water produced during the filtration process. During the use of RO water filter, the actual ratio might be lower than the labeled, depending on many factors such as water quality, pH, pressure and temperature.
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NSF 58 & 372 certified
Waterdrop reverse osmosis system is tested and certified against NSF/ANSI standard 58, the TDS reduction rate is up to 91.9%.
Tested and certified against NSF/ANSI standard 372, Waterdrop RO system employs lead-free materials, giving you a safe product.
G3 RO system passed 400+ chemical lab tests, which proves that this system does not contain most chemical substances.
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).
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7-stage deep filtration
Reduces chlorine, taste and odor, chloramine, scale, turbidity, cysts, and many heavy metals, such as hexavalent chromium.
Improves the taste of water. Carbon block is made from supreme coconut shell, ensuring that you enjoy ultra-fresh, healthy, great-tasting drinking water.
Filtered Water Increased By 300%
1:1 drain ratio, compared with the traditional RO machines, it can filter up to 300% more purified water, make efficient use of water resources, and save your water bills.
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400GPD fast water flow
Get 1 cup of water in 12s.
Water flows faster than in ordinary RO systems.
No more waiting for crisp water. Immediate filtration, water is always fresh!
Smart designer faucet
Displays water quality in real time, understands every drop of water.
Smart TDS monitoring panel
Water quality is clear at a glance.
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Tankless design
Prevents bacteria from forming, thereby ensuring the freshness of your water.
Saves 50% in under-sink space, leaving your kitchen clean and organized.
Easy to install & replace
Waterdrop G3 RO system can be installed in 30 minutes, and the filter can be changed in just 3 seconds.
There’s no need to move the system, nor is there a need for tools.
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Kind notice:
Please refer to this diagram and be informed that you need to drill a hole on your countertop to place the smart faucet (No need for this step if your countertop already has a hole). Besides, an adapter will be installed on your household water tubing to connect to RO system’s wastewater tubing and input water tubing.
Electricity is required to run the RO system.
We do not recommend using well water as source for our RO systems. We do not recommend connecting tankless RO to a refrigerator or ice maker.
It's highly recommended to install our RO system with components provided by Waterdrop. Installing the system with any parts or accessories that are not provided by Waterdrop may cause the system to malfunction or shorten the lifetime of the system/filters.
Protects each baby's health
Newborns are very delicate. Compared to tap water, RO water is purer, cleaner and more suitable for babies. Milk powder made by RO water is easier to be absorbed.
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G3 RO Filtration System

G3 RO Filtration System

 G3P800 RO Filtration System

G3P800 RO Filtration System

 D6 RO Filtration System

D6 RO Filtration System

 WD-D4-W

D4 RO Filtration System

 G2P600 RO Filtration System

G2P600 RO Filtration System

 G2MNR RO Filtration System

G2MNR RO Filtration System
Need Installation √ √ √ √ √ √
Beneficial Minerals × × × × × √
Flow Rate 400 GPD 800 GPD 600 GPD 400 GPD 600 GPD 400 GPD
Pure to Drain Rate
wd-pure-to-drain-rate-icon
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

WD-G3-N2RO

WD-G3-N3CB
 WD-G3-N1CF

WD-G3P800-N2RO

WD-G3-N3CB
 WD-D6RF
 WD-D4RF
 WD-G2CF

WD-G2P6MRO
 WD-MNR35

WD-G2CF

WD-G2MRO
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

WD-G3-N1CF

WD-G3-N2RO

WD-G3-N3CB
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
CF filter
CF Filter for Waterdrop G3P800 & G3 Reverse Osmosis System
  • Pre-sediment and carbon block. Superior 3-in-1 composite filter.
  • Provides up to 6 months or 550 gallons of clean water.
  • Simple replacement: Takes only 3 seconds and just a twist to change the filter.
29.99
Total price: $29.99
Total price: $29.99
WD-G3-N3CB Filter
WD-G3-N3CB Filter for waterdrop G3P800 & G3 Reverse Osmosis System
  • Superior coconut shell activated carbon block with a smaller pore size.
  • Provides up to 12 months or 1,100 gallons of clean water.
  • 3-second replacement: Takes only a twist to change the filter.
29.99
Total price: $29.99
Total price: $29.99
WD-G3P800-N2RO Filter
WD-G3-N2RO Filter for Waterdrop G3 Reverse Osmosis System | 400GPD
  • 3-second replacement: Takes only a twist to change the filter.
  • Provides up to 24 months or 2,200 gallons of clean water.
  • Tested and certified by NSF International against NSF/ANSI standard 58. The TDS reduce rate is certified to exceed 90%.
89.99
Total price: $89.99
Total price: $89.99
Remineralization Filter
Remineralization Filter for All Series Waterdrop Reverse Osmosis Systems-Waterdrop MNR35
  • An excellent add-on Remineralization filter adopts 18 natural materials to restore minerals.
  • Saves 8300 single-used bottles and $12600 spent on bottled mineral water.
  • Compatible with RO water system, undersink filtration systems and refrigerator.
29.99
Total price: $29.99
Total price: $29.99
CF & CB Filters and Remineralization Filter
CF & CB Filters and Remineralization Filter for G3P800 RO System, 1-YEAR COMBO
  • The water filter kit provides up to 1-year of clean water for your family.
  • Pack of 2 CF Filters, 1 CB Filter, and 1 Remineralization Filter.
  • It could help you save money by purchasing 1-Year Combo Replacement Filters in one kit together rather than individually.
119.96
Total price: $119.96
Total price: $119.96
CF & CB Filters and Remineralization Filter
Waterdrop G3P800 RO System Replacement Filters, 2-YEAR COMBO
  • The water filter kit provides up to 2-year of clean water for your family.
  • Pack of 4 CF filters, 2 CB filters, and 1 RO filter.
  • It could help you save money by purchasing 2-Year Combo Replacement Filters in one kit together rather than individually.
269.93
Total price: $269.93
Total price: $269.93
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