Waterdrop G2P600 WD-G2P600-W Tankless RO Water Filter, 600 GPD

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Product guide

Waterdrop G2P600 WD-G2P600-W Tankless RO Water Filter, 600 GPD

WD-G2P600-W Filter: The Waterdrop G2P600 is a tankless reverse-osmosis water filtration system rated by the listing at 600 GPD. Its under-sink format and claimed 2:1 pure-to-drain ratio suit buyers seeking high stated output, but installation requires an electrical outlet and drilling.

At a glance

Tankless under-sink design avoids the need for a storage tank and is claimed to save under-sink space.
The listing describes seven-stage reverse-osmosis filtration and TDS reduction.
A claimed 2:1 pure-to-drain ratio means two cups of purified water for one cup of wastewater.
Filter life indicators are claimed to signal when replacement is due, and the twist-and-pull design is described as tool-free.

Price

£237.49Save 21%

Reference price: ~~£299.99~~

Price checked: 12 Nov 2026

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Pros and cons

Pros

The tankless layout can suit installations where a separate water-storage tank would take up valuable cupboard space.
The stated 600-litre-per-day flow rate is aimed at households with substantial filtered-water demand.
The listing describes tool-free filter changes without moving the system.

Cons

Installation requires an electrical outlet under the sink and drilling for the tap and drain connection.
Reverse osmosis produces wastewater, including at the claimed 2:1 pure-to-drain ratio.

Technical specifications

12 specifications

Identity
Brand	Waterdrop
Model	WD-G2P600-W
Purification method	Reverse Osmosis

Capacity and water
Maximum flow rate	600 Litres Per Day
Listed capacity	600 gallons
Maximum supported water TDS	500
Upper temperature rating	100 Degrees Celsius
Pure-to-drain ratio	2:1 Pure to Drain

Power and installation
Power configuration	In-built Stored Cord
Installation type	Can be mounted under construction
Design	Tankless

Dimensions
Dimensions listed	49.4L x 20.6W x 45H centimetres

What to know before buying

Listing details to confirm

Listing details are inconsistent about output, giving 600 GPD in the title and feature text but 600 Litres Per Day in the maximum-flow field, and separately stating a capacity of 600 gallons. The stated 100 Degrees Celsius upper temperature rating is also unconfirmed for the intended water use. Confirm the applicable specifications before purchase.

What’s in the box

RO systemIncluded
Two filtersCheck selected pack

Check which accessories are included in your selected pack before buying.

Who is it for?

A good fit for

Households wanting an under-sink, tankless reverse-osmosis system with a high stated output.
Buyers who can provide under-sink power and accommodate drilled tap and drain connections.
Those willing to manage filter replacements and the wastewater produced by reverse osmosis.

Less suited to

Renters or others unable to drill the required holes or provide an under-sink electrical outlet.
Buyers who need a system that produces no wastewater or does not require filter replacements.

Waterdrop G2P600 WD-G2P600-W Tankless RO Water Filter, 600 GPD · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.5 / 5 · 443 ratings

5 stars77%77%
4 stars14%14%
3 stars1%1%
2 stars4%4%
1 star4%4%

Customer feedback reports good perceived build quality and improvements to water taste and quality. Opinions are mixed on noise, value and flow rate. That matters here because the listing claims a high flow rate and quiet operation, but these claims do not establish how the system will perform in a particular installation.

Positive themes

Customers report favourable impressions of build quality, filtration performance and water taste.

Mixed feedback

Feedback is divided on noise level, value for money and water flow.

Frequently asked questions

Does the G2P600 need power?

Yes. The listing says an under-sink electrical outlet is required for operation.

Does it need drilling to install?

Yes. The listing calls for drilling for the RO faucet and drain connection, so check that your sink or worktop can be modified.

How much wastewater does it produce?

The listing claims a 2:1 pure-to-drain ratio, meaning two cups of purified water produce one cup of wastewater.

Are replacement filters included?

A feature claim says two filters are included, but the explicit included-components field lists only the RO system. Check the selected package details before ordering.