Waterdrop Instant Hot Water Dispenser, Reverse Osmosis System, K6

Regular price €504,21
Sale price €504,21 Regular price
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  • Key Feature
    • [Innovative Purified & Hot Water] Waterdrop K6 is the 1st RO system with heating function, delivering both purified & hot water in one unit.
    • [High Capacity & Flow Rate] With 600 GPD capacity hot water flow rate, K6 exceeds traditional under-sink RO water purifiers, meeting your needs for water purification & hot water.
    • [Instant Hot Water On-Demand] Get instant hot water (104℉-203℉) with Waterdrop K6! Perfect for cooking soup, making coffee/tea/oatmeal, and more.
    • [Deep Filtration for Pure Water] 5-in-1 filter removes harmful substances such as TDS, fluoride, heavy metals and more, guaranteeing pure water every time.See WD-K6 RO system test results for more.
    • [Smart Display Faucet] The high-end faucet displays TDS level & filter condition, with temperature adjustment at your fingertips for a smart & convenient life experience.
    • [Safety First] K6 automatically monitors water purification & includes child lock & water dispensing temperature indication features to avoid scalding risks. Built-in flowmeter, NTC & heating overtime protection function prevent dry burning.
    • [Maintenance-Free Operation] K6 prevents limescale formation inside, reducing the hassle of liner cleaning for long-lasting operation.
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Shipping policy

Shipping rates and delivery estimates

Shipping Method

Estimated Delivery Time


Economy Shipping

4-10 Business Days


Standard Shipping

3-6 Business Days

$5.99(Free on order over $200)

Express Shipping

2-5 Business Days


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

* The Delivery Time is calculated based on the shipping date, not the order date. The actual shipping date can be delayed due to invalid shipping address, weekends/holidays, etc.

Handling Time:

We need 24h to 48h to prepare your order, most of the packages will be shipped out within 24 hours except weekends and holidays.

Track your order

Once your order is shipped, you will receive an email from us containing the tracking information. Tracking information is also available in your "Order Details" page.

Shipping areas

The products can be delivered to the most of states in United States except American Samoa, Micronesia, Guam, Marshall Islands, Northern Mariana Islands, Palau, Puerto Rico and U.S. Virgin Islands.

International shipping

We are sorry that the international shipping service is not supported for the time being.

Shipping Carriers

We work with 4 carriers to make sure your order will arrive on time: UPS, USPS, FedEx and Amazon Logistics US.

Delivery Time Exceeded

Shipping might experience delay due to covid-19. If your order is delayed, please contact us via email service@waterdropfilter.com, we will check the situation with the transportation company in time. Thanks for your understanding and support.

Note: We don't accept requests to specify a certain carrier to deliver the package.

Shipping origin

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

* If you have any questions, you can contact our customer via LiveChat or email to service@waterdropfilter.com, we will reply to you as soon as possible!

Sales Tax

The sales tax will be collected in accordance with U.S. tax laws. Customers whose delivery address within the following states will be charged a certain tax at checkout, and the tax rate is determined by the local government. (AZ, CA, CO, FL, GA, IL, IN, KY, MA, MD, MI, MN, NC, NJ, NV, NY, OH, PA, TX, UT, VA, WA, WI) All taxes collected will be reported and filed to the IRS on time.

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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Waterdrop Instant Hot Water Dispenser, Reverse Osmosis System, K6

Regular price €504,21
Sale price €504,21 Regular price

Model number
WD-K6-W(Also named as WD-KJ-600)
Product dimensions
18 x 17 x 7 inches
Item weight
33.06 pounds
Maximum daily capacity
600 GPD
Feed water pressure
14.5-87 psi/0.1-0.6MPa
Feed water temperature
Hot water temperature
Smart LED faucet
Feed Water Requirement
Municipal tap water
Faucet appearance
Brushed nickel
In the box
System*1, Feed water adapter 3/8”-1/2”*1 and Inlet water tubing*60”, Pure water tubing*60”, Hot water tubing*60”, Smart faucet*1, Drain water tubing*60”, Lock clip*6, Drain saddle*1, Teflon tape*1

Can the system be connected with an MNR remineralization filter for use?

Yes, it can be connected with an MNR remineralization filter for use, but the MNR filter can only be connected to a cold water pipe.

Can the system be connected with a UV water sterilizer?

Yes, it can be connected with a UV water sterilizer, but the UV water sterilizer can only be connected to a cold water pipe. And it requires an extra power plug (UV requires extra power).

Can the K6 system be connected to a refrigerator or an ice maker?

No, it cannot be connected to a refrigerator or an ice maker.

Does Waterdrop K6 instant hot Reverse osmosis system waste a lot of water?

No. The pure to drain ratio of this system is 2:1. For every two cups of pure water you get, only 1 cup of wastewater is produced.

How often should I change reverse osmosis instant hot water filters?

The lifespan of the composite filter is 12 months or 1,600 gallons. The color change on the system and faucet can indicate the lifespan status of the filter.

Is it convenient to replace the filter of Waterdrop K6 instant hot Reverse osmosis system?

Yes. The system adapts the twist-and-pull filter design. The filter can be replaced directly without shutting off the water source or power supply.

Can this system use my own faucet?

No,you cannot use your own faucet, the machine must be controlled with its own unique faucet.

What size hole would I need to drill to install the faucet in my sink?

It's recommended to drill a hole of 1". If there's a reserved hole for the soap dispenser on your countertop, you could use that to install the RO faucet directly. In addition, we have included a sticker in the package, which could be used as a reference while drilling the hole.Remember to wear safety glasses to protect your eyes while drilling the faucet hole.

Is Waterdrop K6 instant hot Reverse osmosis system noisy?

No. The system works very quietly, and you will hardly hear any noise.

Can I immediately get hot water after setting the temperature?

After you set the desired temperature and the light indicating a heating status goes out, you can take the hot water for drinking, and the faucet will display the temperature of dispensed water. It only takes about 15 min to heat water from room temperature to 203℉, and please wait patiently.
Please set desired temperature in advance. When the dispenser starts heating, you can get hot water directly without waiting. There can be external factors that will ultimately affect the temperature of water, including weather, temperature of cup.

How do I start the heating function to get hot water after installing the system?

To guarantee the safety, please manually turn on a heating switch on the system after flushing when the system is used for the first time, then, adjust the temperature by pressing a “△” key and a “▽”key on the faucet or system, and you can get hot water after the light indicating the heating status goes out.

Can I turn off the heating module when heating is not required?

Yes. All that is required is to turn off the heating switch on the system, and turn on it again when the heating function is required.

How many modes of heating temperatures can I set?

The heating temperature can be set as you wish in the range of 104-203 ℉. Press the “△” key to adjust the temperature at an interval of 1 ℉, and hold the “△” key to rapidly adjust the temperature.

Is Waterdrop K6 instant hot Reverse osmosis system safe?

Yes. The K6 product adopts comprehensive safe design and comes with child lock and water dispensing temperature indication. The system is also built with a flowmeter, NTC and a heating overtime protection function to prevent dry burning of water.
Hot steam of the tank is drained from the drain pipe, and the system is designed with anti-scalding cotton to avoid scalding.
NSF/ANSI 372 Certified
SGS & CSA Tested
Adcanced RO Filtration
Reduces PFAS

5-stage Filtration, Crisper Taste
The K6 RO system adopts a 5-in-1 integrated filter, which can effectively reduce multiple harmful substances.
No Limescale, Long-effect Operation
The system cannot form limescale inside, which reduces users’ trouble of liner cleaning.
Instant Hot Water at Any Temperature
One RO system can meet your demands for hot water at different temperatures without other heating water dispensers.
Please Note:
1. After the system is installed for the first time and is flushed, please manually turn on the heating module for temperature setting. In a flushing status, the heating indicator is not available.
2. The system can be connected with an MNR remineralization filter for use, but the MNR filter can only be connected to a cold water pipe.
3. The system cannot be connected to a refrigerator or an ice maker.

High-end Smart Touch Display Faucet
The smart faucet allows you to get the water temperature and TDS level at a glance,bringing smart and convenient life experience.
*The number 006 on the screen doesn't represent the final TDS level, which may vary based on the quality of your raw water
G3P600 RO Filtration System

G3P600 RO System

G3P800 RO Filtration System

G3P800 RO System


K6 Instant Hot RO System

G2P600 RO Filtration System

G2P600 RO Filtration System

K19 Countertop RO System

K19 Countertop RO System

Need Installation ×
Flow Rate 600 GPD 800 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.

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 /
Display Filter lifespan & TDS Filter lifespan & TDS Filter lifespan & TDS & Temperature adjustment Filter lifespan Filter lifespan & TDS
Self-clean ×
Holiday mode ×
Electricity Required
Filter Cartridges WD-G3-N1CF





Filter Lifespan CF-6 Mths
CB-12 Mths
RO-24 Mths
CF-6 Mths
CB-12 Mths
RO-24 Mths
12 Mths CF-12 Mths
P6MRO-24 Mths
WD-A1-CF: 6 Months
WD-A1-RO: 12 Months
Dimensions (inch) 18.11*5.67*17.73 18.06*5.65*17.75 6.7*17.5*16.6 17.32*5.91*13.9 13.8*7.9*16.3
WD-KJF Filter for Waterdrop K6 Reverse Osmosis Instant Hot Water Dispenser System
WD-KJF Filter for Waterdrop K6 Reverse Osmosis Instant Hot Water Dispenser System
  • Adaptive to Waterdrop K6-W&KJ-600 Instant Hot RO System provides up to 12 months or 1,600 gallons of healthy water for you and your family.
Total price: $119.00
Total price: $119.00
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.
Total price: $29.99
Total price: $29.99