- [6-stage filtration] The filtration accuracy of the reverse osmosis membrane is 0.0001μm. The 6-stage filter reduces pollutants from water, including TDS, lead, chlorine, salt, nitrates, PFAS, lead, sodium, chromium, benzene, etc. Our RO system can reduce toxic chemicals such as vinyl chloride, ethylhexyl acrylate, isobutylene, ethylene glycol, monobutyl ether, according to the reverse osmosis membrane technical manual. *The activated carbon block is made from natural coconut shells. Please confirm whether you are allergic to it.
- [600 GPD & 2:1 low drain ration] Waterdrop reverses osmosis water system is upgraded to have a flow rate of 600 GPD. With an innovative internal pump and a larger filter surface, you can fill a cup of water in 8 seconds. A low drain ratio of 2:1 means that dispensing 2 cups of pure water produces only 1 cup of wastewater.
- [Smart designer faucet] The tankless reverse osmosis system comes with a smart designer faucet that has a high-end screen. The screen shows the real-time TDS level and the remaining life of the filter. It is waterproof, so you do not have to worry about electrical leakage. Together with the filter life indicator on the control panel, D6 reverse osmosis filter system saves you time and effort by monitoring these for you.
- [Tankless & easy installation] D6 RO water filter system employs a tankless design and a composite RO filter. The Compact D6 RO system saves 70% of your under-sink space and prevents recontamination than traditional systems. DIY installation can be completed within 30 minutes. The push-in replacement design allows you to replace the filter in 2 seconds, without moving the system or using any tools.
600GPD Under Sink Reverse Osmosis System - Waterdrop D6
Remove 99% of lead - cleaner, safer, better
Regular price
$329.00
$399.00
Sale price
$399.00
Regular price
$70 OFF CODE:
D6
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Related Blog
- Best Reverse Osmosis Water Filtration System of 2025
- A reverse osmosis (RO) system is widely recommended for guaranteeing the purity of your drinking water. These systems provide clean, refreshing water straight from the tap by efficiently eliminating impurities such as chlorine, bacteria, heavy metals, and other contaminants. In 2025, there will be many different RO systems available, making it difficult to choose the best one for your requirements. This blog post will analyze the best reverse osmosis system of 2025 and discuss their merits as investments.
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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) |
* 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
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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")
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.
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
