Waterdrop M6HG WD-M6HG Instant Hot RO Water Purifier with Glass Pitcher

WD-M6HG Instant: The Waterdrop M6HG is a countertop reverse-osmosis purifier that the listing says mineralises filtered water and dispenses it at room temperature or one of five hot-water settings. Its detachable glass pitcher and refillable tanks avoid plumbing installation, while its 95°C upper temperature rating and mixed customer feedback about hot-water temperature are worth considering.

At a glance

The listing describes an eight-stage RO process with a 0.0001μm membrane and post-filtration addition of calcium, magnesium and potassium.
Five preset dispensing options are listed, from room-temperature water to 95°C, with volume adjustment from 150ml to MAX.
The separate feed and waste tanks are listed as 4L and 1.5L within a 5.5L tank, with a stated 3:1 pure-to-drain ratio.
A detachable 1.2L glass pitcher is supplied according to the product description.
The system is described as installation-free: fill the feed tank and plug it in. The listing specifies a Type G UK plug.

Price

£329.00Save 23%

Reference price: ~~£429.00~~

Price checked: 14 Nov 2026

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Often bought together

Waterdrop M6RFG Filter, Replacement for M6HG&M6CG System, 12-Month Lifetime | 0.0001μm RO Filtration, Mineral Filter, Adds Beneficial Mineral ( K⁺, Ca²⁺, Na⁺, and Mg²⁺ ), Reduce PFOA & PFOS

£69.99

Pros and cons

Pros

Countertop, refill-and-plug operation avoids a plumbed installation according to the listing.
The detachable glass pitcher can be removed for serving or fridge storage.
Room-temperature dispensing and several hot-water presets cover different everyday drink uses.
The listing states that waste water is kept separate and can be reused for tasks such as watering plants or cleaning.

Cons

It provides room-temperature and hot water only, with no cooling function.
Its feed and waste tanks need manual filling and emptying, rather than a direct water connection.

Technical specifications

18 specifications

Identity
Brand	Waterdrop
Model	WD-M6HG

Dimensions and installation
Dimensions listed	40.3D x 23.5W x 36.9H centimetres
Weight listed	10.3 Kilograms
Installation type	Countertop

Filtration and water handling
RO membrane pore size	0.0001μm
Water production capacity	284 L/day
Pure-to-drain ratio	3:1
Feed and waste tank capacity	5.5L tank: 4L for tap water and 1.5L for waste water
Pitcher capacity	1.2L
Minerals added	calcium, magnesium and potassium

Dispensing
Temperature range	room temperature to 95°C
Preset temperature options	Five preset temperature options
Adjustable volume	150ml to MAX
Cooling function	DO NOT have a cooling function

Physical details
Colour	Grey
Pitcher material	glass
Upper temperature rating	95 Degrees Celsius

What to know before buying

The listing says not to remove the pitcher during flushing and instructs users to keep it on the unit during flushing and use. It also describes a 3:1 pure-to-drain ratio alongside separate 4L feed and 1.5L waste capacities. Check that the countertop footprint and tank routine suit your space and use.

Who is it for?

A good fit for

Households wanting countertop RO filtration without plumbing work.
People who want a removable glass pitcher and adjustable room-temperature or hot-water dispensing.
Users who can refill the feed tank and make practical use of separated waste water.

Less suited to

Buyers who need chilled water or a plumbed-in system.
Those who want to avoid handling feed and waste water tanks.
Anyone who requires consistently very hot output without first checking whether the listed temperature settings suit their needs.

Waterdrop M6HG WD-M6HG Instant Hot RO Water Purifier with Glass Pitcher · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.2 / 5 · 220 ratings

5 stars65%65%
4 stars14%14%
3 stars10%10%
2 stars5%5%
1 star6%6%

Customer feedback highlights perceived water quality and taste, ease of setup and filtration speed. Those experiences may matter to buyers using the stated RO filtration and pitcher workflow, but the listing’s specifications do not independently establish the reported results. Feedback is mixed on hot-water temperature and waste water, so consider the stated maximum of 95°C and the need to manage a separate waste tank. Ratings are generally favourable but include a spread across lower star categories, so they do not establish how the unit will perform for a particular household.

Positive themes

Customers report good-tasting water and easy setup.
Customers appreciate filtration speed and value.

Mixed feedback

Feedback on hot-water temperature is mixed, with some customers finding it useful and others saying it is not very hot.
Feedback on waste water is mixed, with concerns about the amount produced.

Frequently asked questions

Does the Waterdrop M6HG provide cold water?

No. The listing explicitly says it provides room-temperature and hot water and has no cooling function.

Does it need to be connected to a water supply?

The listing describes it as installation-free. Fill its feed tank and plug in the unit. It lists a Type G UK plug and advises checking compatibility before ordering.

What temperatures and volumes can it dispense?

The stated range is room temperature to 95°C, with five preset temperature options and adjustable volume from 150ml to MAX.

What should I know about flushing?

The listing instructs users to keep the glass pitcher on the unit during flushing and use, and not to remove it during flushing.