About Us Contact Us Easy Returns Privacy Shipping Terms of Service
FREE SHIPPING on all orders!
FREE SHIPPING on all orders!
Skip to content
Waterdrop K6 RO System with smart tap

Waterdrop K6 RO Dispenser with Smart LED Faucet

by Waterdrop Filter
£499.99
Click to Call Our Friendly Team

Notify me when back in stock

Fast, Free Shipping
friendly-expert support
ongoing customer care
manufacturer's warranty

Why Choose the Waterdrop K6 RO System?

Experience the pinnacle of water purification with the Waterdrop K6 Under-Sink Reverse Osmosis Filter System, complete with a sleek, modern Smart Touch LED Faucet. Designed to go beyond the traditional under-sink RO systems, the K6 brings together advanced water filtration, intuitive technology, and minimalist design. It combines powerful 5-stage reverse osmosis filtration with instant hot water functionality, all housed in a compact, tankless unit. Whether you're upgrading your kitchen or seeking a cleaner, more efficient way to enjoy purified water, the Waterdrop K6 offers a seamless blend of performance, convenience, and style.

Instant Hot Water On Demand

The tankless RO water filtration system provides a quick and stable water flow of 600 GPD/2,271 L and a high hot water flow rate of 0.4 gal/min, making it possible to fill a cup within seconds. With a drain ratio of 2:1, the RO water filter system efficiently saves water without compromising performance.

A under sink reverse osmosis system underneath a sink with features listed and a faucet pouring water into a cup

Powerful 5-Stage Filtration for Pure, Safe Water

With a comprehensive 5-stage deep filtration setup, the K6 effectively reduces TDS, chromium, PFAS, fluoride, arsenic, salt, heavy metals, nitrate, particles, chloride, and other detrimental elements.

A 5 stage water filtration graphic with details of what contaminants are removed
A vector of a globe of the earth

Trusted Globally

Used Across Europe and the US

a vector of a bottle of water with a line through it

No More Bottled Water

Clean Water, Cleaner Planet

a vector of a droplet going through filters

Reverse Osmosis

Pure Water at Your Fingertips

A vector of a tick in a shield

Manufacturers Warranty

Purchase with Confidence

Instant Hot Water On Demand

Ideal for preparing tea, baby formula, coffee, or cooking, the K6 RO water filter system allows temperature adjustment from 40-95℃.

*Please keep in mind that external factors, such as weather and cup temperature, can affect the water temperature.

A smart faucet pouring boiling water with details about what temperatures are dispensed

Smart LED Faucet with Touch Display

The K6 smart faucet is skilfully manufactured with a stainless-steel bright nickel plating process, ensuring resistance to colour alteration, oxidation, and low allergy. Designed for durability, the enhanced Teflon tube is heat-resistant up to 500℉/260°C, offering many advantages including corrosion resistance, pressure resistance, wear resistance, aging resistance, and low permeability.

A hand getting ready to press a button on a smart faucet with features listed

Efficient & Eco-Friendly Performance

With a 600 GPD (2,271 L) capacity and a hot water flow rate of 0.4 gal/min, this RO water filter quickly fills a cup in seconds and and uses water efficiently with a 2:1 pure-to-drain ratio without compromising performance.

A graphic showing the waste water ratio to pure water with filter lifespan

No Limescale - Extended Lifespan

The Waterdrop K6 reverse osmosis system does not build up limescale because of its advanced 5-stage filtration process, which effectively removes minerals like calcium and magnesium—the primary culprits behind limescale formation. In standard systems, these minerals can accumulate inside pipes and components, especially when exposed to heat, leading to scale build-up over time. However, the K6’s RO membrane filters out these hardness minerals before they ever reach the system’s internal pathways, including the instant heating unit. This ensures the K6 stays clean internally, reducing maintenance needs and extending its lifespan.

An under sink reverse osmosis system tank showing that limescale never builds up

See the K6 in Action

The K6 gives you the flexibility to customise the temperature within a range of 40-95°C. Ideal for tea, coffee, soups, oatmeal or any other household tasks. you need it for such as preparing soups, brewing instant coffee, making tea.


Can I use my own faucet with this system?

No. This system is designed to work exclusively with its smart faucet. For full functionality and control, it must be installed with the included faucet.

What heating temperature settings are available?

You can customise the heating temperature anywhere between 40°C and 95°C. Simply press the “△” button to adjust in 1°C increments, or hold it down for quicker changes.

Is it easy to replace the filter in the Waterdrop K6 Instant Hot RO System?

Yes, it’s designed for convenience. The twist-and-pull filter design lets you replace the filter quickly—no need to turn off the water supply or power.

Can I connect the system to an MNR remineralisation filter?

Yes, the system is compatible with an MNR remineralisation filter. Just note that it should only be connected to the cold water line.

Warranty Information

  • 12 Months

What's Included

Everything you need is included with your product.

  • K6 reverse osmosis system
  • Smart faucet
  • Feed water adapter 3/8”-1/2” 
  • 4 x 1.5m tubing (inlet/drain-pure water/hot water (colour coded)
  • 6 x Lock clips
  • Drain saddle
  • Teflon tape

Full Specification

Model Number WD-K6-W(Also named as WD-KJ-600)
Item weight 31.9 pounds
Dimensions 18" x 17" x 7" inches
Maximum daily capacity 600 GPD
Feed water pressure 14.5-87 psi/0.1-0.6MPa
Hot water temperature 104-203°F/40-95°C
Faucet Smart LED faucet
Feed Water Requirement Municipal tap water
Faucet appearance Brushed nickel

Fast, Free Delivery – No Hidden Charges

Waterdrop K6 RO Dispenser with Smart LED Faucet Reviews

Check out more Waterdrop Filter products below

Click here to view our full range