Waterdrop Refurbished G3 RO System
Waterdrop
Regular price
£299.00
£499.00
Sale price
£499.00
Regular price
£200 OFF CODE:
REG3
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At Waterdrop, we know that access to clean and safe drinking water is
essential for everyone's health and well-being. That's why we are committed to providing you with
affordable and dependable options for your water filtration needs.
Why Opt for the Refurbished G3 RO System?
Cost-effective
Waterdrop refurbished G3 RO system is priced significantly lower than
new
ones. You can save up to 40% or more by purchasing a refurbished RO system from us.
High-quality Standards
We have taken great care in inspecting and sanitizing each machine to
ensure they meet our high-quality standards. You can rest assured that every machine has been repackaged
to look and perform like new.
Environmentally Friendly
By purchasing a refurbished RO system, you are contributing to a more
sustainable future by reducing waste and minimizing the impact on the environment.
Fully Functional
Our pre-owned RO systems are not only fully functional, but they also
have the same high-performance capabilities as a
new system. You can trust that you are purchasing a reliable product that has been inspected,
cleaned, and serviced to meet our rigorous standards. Additionally, all filter elements have been
replaced with new ones, giving you the peace of mind to use them with confidence.
1-year Warranty
We provide a 1-year warranty with each refurbished G3 RO system that
we sell, giving customers peace of mind and protection against any unforeseen issues.
Waterdrop is committed to providing our customers with exceptional
value for their money. Our refurbished RO systems are no exception, and we stand behind their quality
with our rigorous inspection and sanitation processes. You can trust that you are making a smart choice
for your wallet and the environment when you purchase a refurbished G3 RO system from us.

NSF 58 & 372 certified
- Waterdrop reverse osmosis water filter 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.
- See WD-G3-W RO system test results for more
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).


8-stage deep filtration
- Reduces chlorine, taste and odor, 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.
Smart display faucet
- The reverse osmosis water system is built with a smart display faucet.
- The TDS monitor tells you the quality of your filtered water. *The TDS reading results may vary
- The filter life tracker shows how soon you need to replace your filter.
- You can enjoy an improved water-using experience and a convenient lifestyle.


Tankless design
- Free up 70% of under-sink space, leaving your kitchen clean and organized.
Save 4X Water
- Waterdrop reverse osmosis system saves 4X water compared to conventional RO systems.


Easy to install & replace
- Waterdrop G3 RO system can be installed in 30 minutes, and the filter can be changed in just 2 seconds.
- There’s no need to move the system, nor is there a need for tools.
Pure Water without Waiting
- The highly efficient pure water flow of 400 GPD allows you to fill a cup of water in just 12 seconds
- Water flows faster than in ordinary RO systems.
- No more waiting for crisp water. Immediate filtration, water is always fresh!


Automatic Flushing
- To maintain and extend the life expectancy of the filters, the system will be automatically flushed for 20 seconds after working for two hours.
- When power is restored after a blackout, the system will be forced to flush automatically for 20 seconds.
- The system will ensure fresh water by flushing automatically every time you shut off the tap for 5 minutes.
Holiday Mode
- To ensure fresh and healthy filtered drinking water, the G3 Reverse Osmosis System is automatically flushed when no water is dispensed for 12 hours.
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, ice maker or salt-based softener.
- 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.


A sip of nature doesn’t cost much
- The remineralization filter can connect to all types of under sink water filter systems. By adding one filter, you can enjoy remineralization water with a refreshing taste. Please click here to purchase this add-on filter.
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![]() G3P800 RO Filtration System |
![]() K6 Instant Hot RO System |
![]() D6 RO Filtration System |
![]() G2P600 RO Filtration System |
![]() K19 Countertop RO System |
|
Need Installation | √ | √ | √ | √ | √ | × |
---|---|---|---|---|---|---|
Flow Rate | 600 GPD | 800 GPD | 600 GPD | 600 GPD | 600 GPD | 75 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.
|
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Faucet | Smart faucet | Smart faucet | Smart faucet | Smart faucet | Ordinary faucet | / |
Display | Filter lifespan & TDS | Filter lifespan & TDS | Filter lifespan & TDS & Temperature adjustment | Filter lifespan & TDS | Filter lifespan | Filter lifespan & TDS |
Self-clean | √ | √ | √ | √ | × | √ |
Holiday mode | √ | √ | √ | √ | × | √ |
Electricity Required | √ | √ | √ | √ | √ | √ |
Filter Cartridges |
WD-G3-N1CF WD-G3P600-RO WD-G3-N3CB |
WD-G3-N1CF WD-G3P800-N2RO WD-G3-N3CB |
WD-KJF |
WD-D6RF |
WD-G2CF WD-G2P6MRO |
WD-K19RF |
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 |
12 Mths |
Dimensions (inch) | 18.11*5.67*17.73 | 18.06*5.65*17.75 | 6.7*17.5*16.6 | 15.98*5.98*11.97 | 17.32*5.91*13.9 | 13.8*7.9*16.3 |

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 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-G3-N2RO Filter for Waterdrop G3 Reverse Osmosis System |
400GPD(not 600GPD)
- 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 91.9%.
89.99
Total price: .99
Total price: .99

Remineralization Filter for All Series Waterdrop Reverse
Osmosis Systems-Waterdrop MNR35
- An excellent add-on Remineralization filter adopts 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 for G3 RO System, 1-YEAR COMBO
- Waterdrop WD-G3-W Replacement Filters 1-Year Combo.
- Pack of 2 WD-G3-N1CF Filters and 1 WD-G3-N3CB Filter.
- It could help you save money by purchasing two CF filters and one CB filter in one kit together rather than individually.
89.97
Total price: 89.97
Total price: 89.97

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