The five-in-one composite filters in the Waterdrop D6 Water Filtration
System combines multiple filtration technologies into one.
The first PP cotton layer filters out
sediment, rust, and other large particles.
The activated carbon block layer reduces organic matter
and chlorine.
The second PP cotton layer further reduces suspended matter and other
impurities.
The reverse osmosis membrane layer has a filtration accuracy of 0.0001μm, which
intercepts TDS, salt, nitrates, PFAS, lead, sodium, chromium, benzene, etc.
The post-activated carbon
block layer reduces taste and odor to improve the taste of water.
Refurbished Reverse Osmosis System - Waterdrop D6
Model：WD-D6-B
Regular price
$359.00
Sale price
$359.00
Regular price
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Related Blog
- 6 Best Waterdrop Tankless RO Water Filters
- Tankless Reverse Osmosis systems provide unique benefits and features that make it a compelling option for residential use. Compared to other water filtration systems, a tankless RO unit is a great choice for individuals who require high quality drinking water, but are short on space. Here, for your consideration, we have provided an in-depth comparison of Waterdrop's tankless Reverse Osmosis water filter.
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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) |
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30-Day Return
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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
WD-D6-B
Filter capacity
1000 gallons
Materials
System cover: BPA-free plastic
Faucet: metal
Filter: WD-D6RF
Filter materials: reverse osmosis membrane & sediment PP membrane & activated carbon block
Power cord length
73 inches
Product dimensions
15.98 x 5.98 x 11.97 inches
Color
Black
Flow rate
600GPD
Components Included
System cover, brushed nickel faucet, feed water adapter、PE tubing*3 ( 79" ), drain saddle, lock clip,power adapter (Main power cable 73", faucet's power cable 59")
What is new about the Waterdrop D6 RO water filter system?
What impurities can D6 RO water system remove?
The FIST composite filter, specially adopting DOW RO membrane can
conveniently reduce most of pollutants including TDS, lead, chlorine, salt, nitrates, PFAS, lead,
sodium, chromium, benzene, etc. The filtration process also eliminates bad taste and odor, leaving you
with clean and great-tasting drinking water.
How to read the TDS? And why are there two numbers?
The faucet offers a real-time TDS display of your water quality at any
point in time. The in-built LED and TDS sensors become active when the faucet is on. D6 reverse osmosis
filter system has two TDS detectors, detecting TDS level before and after filtration respectively. It
shows TDS level before filtration at first and then indicates TDS level after filtration two seconds
later.
Does this home reverse osmosis system fit in my under sink?
It’s of 15.98 x 5.98 x 11.97 inches size and is the smallest 600GPD RO
system in the market. The D6 adopts a simple tankless design. It requires little space in your kitchen
and can conveniently sit under your sink without obstructing your perfect kitchen interior.
How do I install Waterdrop RO water filter system?
Along with a well-organized instruction manual, you can find a
step-by-step RO water filter system installation video on the Waterdrop YouTube channel.
How often do I need to change the filter?
Filter use: 12 months or 1,000 gallons, whichever comes first.
What is RO water filter system?
Reverse osmosis (RO) is a water purification process that uses a partially
permeable membrane to reduce ions, unwanted molecules and larger particles from drinking water. The
result is that the solute is retained on the pressurized side of the membrane and the pure solvent is
allowed to pass to the other side.
Does this reverse osmosis water system reduce chromium?
All of our reverse osmosis water filtration system are designed to reduce
94-99% of Chromium-6 in your water.
How well does this RO water filter system reduce nitrates?
All of our reverse osmosis water filter systems are designed to reduce
85-90% of Nitrates in your water.
Does this RO water system remove chemicals used to soften water?
This system will reduce chemicals in the water as well as sodium from a
salt-based water softener.
Can this filter be used as a reverse osmosis water system for home?
No. This RO water system is just a point-of-use water treatment system.
Will this reverse osmosis filter system completely reduce fluoride?
All of our reverse osmosis water filtration systems are designed to reduce
94-99% of fluoride in your water.
Is this reverse osmosis water filter 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.
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.
Does this home reverse osmosis system require an under-sink electrical outlet?
Since the system has the booster pump it will require an electrical outlet
for the system to work.
Does this RO water filter system remove salt from my water softener?
a. Please note that the water softener is NOT designed to provide
drinkable water. Its main function is to soften the water for washing clothes, taking a bath, flushing
toilets, etc.
b. If a salt-based water softener is installed BEFORE the RO unit:
-The filtered water could be salty since our unit can only remove 90% salt added by the softener.
-The RO filter's lifetime could be shortened due to the unusual amount of sodium in the source water, which is NOT covered by the warranty.
-We have already put a clear warning on the product page regarding this aspect.
c. If your water softener is NOT salt-based, then our RO unit should work properly with it.
b. If a salt-based water softener is installed BEFORE the RO unit:
-The filtered water could be salty since our unit can only remove 90% salt added by the softener.
-The RO filter's lifetime could be shortened due to the unusual amount of sodium in the source water, which is NOT covered by the warranty.
-We have already put a clear warning on the product page regarding this aspect.
c. If your water softener is NOT salt-based, then our RO unit should work properly with it.
Does this reverse osmosis water filter system lower the pH of the water?
Yes, this reverse osmosis filter system should or could reduce pH but it
depends on the source water and the mineral content of the source water.
What does Pure to Drain Rate mean?
The 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.
D6 RO Filtration System |
D4 RO Filtration System |
G3P800 RO Filtration System |
G3 RO Filtration System |
G2P600 RO Filtration System |
G2MNR RO Filtration System |
|
| Need Installation | √ | √ | √ | √ | √ | √ |
|---|---|---|---|---|---|---|
| Beneficial Minerals | × | × | × | × | × | √ |
| Flow Rate | 600 GPD | 400 GPD | 800 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.
|
 |
 |
 |
|
|
|
| Faucet | Smart faucet | Ordinary faucet | Smart faucet | Smart faucet | Ordinary faucet | Ordinary faucet |
| Display | Filter lifespan & TDS | Filter lifespan | Filter lifespan & TDS | Filter lifespan & TDS | Filter lifespan | Filter lifespan |
| Self-clean | √ | √ | √ | √ | × | × |
| Holiday mode | √ | × | √ | √ | × | × |
| Electricity Required | √ | √ | √ | √ | √ | √ |
| Filter Cartridges | WD-D6RF |
WD-D4RF |
WD-G3-N1CF WD-G3P800-N2RO WD-G3-N3CB |
WD-G3-N1CF WD-G3-N2RO WD-G3-N3CB |
WD-G2CF WD-G2P6MRO |
WD-MNR35 WD-G2CF WD-G2MRO |
| Noise(≤) | 55dB | 55dB | 65dB | 65dB | 55dB | 55dB |
| Filter Lifespan | 12 months | 12 months | CF-6 months CB-12 months RO-24 months |
CF-6 months CB-12 months RO-24 months |
CF-12 months P6MRO-24 months |
MNR-12 months CF-12 months MRO-24 months |
| Dimensions (inch) | 15.98*5.98*11.97 | 16.02*6.22*12.44 | 18.11*5.67*17.72 | 18.11*5.67*17.72 | 17.32*5.91*13.9 | 17.32*5.91*13.9 |
[1] Information is based on Radionuclides in Drinking Water by
EPA.
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 D6 RO System?
Cost-effective
Waterdrop refurbished D6 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 D6 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 D6 RO system from us.
Upgraded 6-Stage Filtration, Care From The Beginning
The Waterdrop D6 under sink reverse osmosis system is upgraded to
6-stage filtration with a filtration accuracy of 0.0001μm. It can reduce 1,000+ kinds of harmful
substances in water to ensure the purity and safety of your water.
600 GPD Fast Flow
600GPD large capacity ensures a faster flow, which is also more
stable and durable. It only takes 8-sec to fill a glass of water with this fabulous tankless reverse
osmosis, no need to wait whether drinking or cooking.
Save Water Bills, More Sustainable
With 2:1 drain ratio, this tankless reverse osmosis system can
filter twice the purified water and only one cup of waste water, make efficient use of water
resources and reduce your pressure on water bills.
Quick Replacement With A Pull-And-Push
The horizontal pull-out filter in the under sink reverse osmosis
filter can be easily replaced in just 2-sec. It only needs to be replaced once a year and can be
easily operated at home.
*We do not recommend using well water as source for our RO systems. We do not
recommend directly connecting tankless RO to a refrigerator or ice maker. You can connect the RO
system to the refrigerator or ice maker with Waterdrop PMT small water pressure tank >.
Save More Space Without Secondary Contamination
Intimate tank-less design of this reverse osmosis filter system
saves more storage space under sink, no secondary contamination and safer.
No Leaking Risk
Advanced integral water way with no leaking points. The Waterdrop
under sink RO system keeps you away from safety risks and protect your family always
Smarter, Cleaner
Automatic flushing of filter and water lines. Even if you go out
for a short period of 24 hours, you can drink fresh and purified water at home, bringing you pure
enjoyment at any time.
WD-D6RF Filter for Waterdrop D6 Reverse Osmosis System
- Provides you with 12 months or 1,000 gallons of clean filtered water.
- You can replace the water filter in 3 seconds with a single twist. No tools required.
- Reduce most contaminants and improves the taste of water.
101.5
Total price: 101.5
Total price: 101.5
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
