

What Makes the Waterdrop X8 Under-Sink Reverse Osmosis System Stand Out?
Waterdrop Under Sink Reverse Osmosis System
Equipped with an incredible 9-stage filtration system, the Waterdrop X8 provides exceptional water quality.
Each of the nine stages works meticulously to tackle specific impurities, including Chloride, Lead, , Fluoride, PFOA, PFOS, Sand, Salt, and various heavy metals. These layers of filtration not only remove particles but also improve the taste, smell, and overall quality of the water, providing a superior drinking experience right from your tap.
Conveniently installed under the sink, this system provides you with high-quality water without the need for bottled alternatives, making it a sustainable choice for your household. Enjoy the peace of mind that comes with knowing your water is filtered through one of the most thorough purification processes available


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Quick Dispatch, No Hidden Fees

Friendly Expert Support
0121 630 1130

Ongoing Customer Care
Advice Before and After Sale

Manufacturers Warranty
Peace of Mind Included
Smart Display Faucet included with this Waterdrop X8
Control at your fingertips: The X8 fits under sink reverse osmosis system includes an innovative smart display faucet.
TDS Monitor: The Total Dissolved Monitor (TDS) continuously checks your filtered water quality and the filter life tracker notifies you when it’s time to replace the filter
The 24-month lifespan of the RO filter reduces the need for frequent replacements, saving you time and money.
We highly recommend using the Waterdrop authentic smart faucet as other brands may not be compatible with your system (you can of course use a three way tri flow tap)

Simple Installation and 2-Second Easy Filter Replacement
Simply twist the used filter counter clockwise to remove it, then insert the replacement and rotate it clockwise until it locks securely
Tankless filters are simpler to replace because:
- Less Frequent Replacements: Last longer due to on-demand filtering
- Simpler Replacement Process: Typically has fewer filter cartridges
- Lower Filter Wear: Only filters water when needed

800 GPD High Capacity 2:1 Low Drain Ratio
The Waterdrop X8 reverse osmosis water filter system, is an enhanced version of traditional systems, and yields an impressive 800 gallons of filtered water daily. Featuring an impressively low drain ratio, this system produces a mere one cup of waste water for every two cups of pure water it delivers

Tankless Design
The tankless design effectively prevents secondary bacterial contamination and frees up 70% of the under-sink space. Additionally, it provides continuous access to filtered without the need for a bulky storage tank.

X8 Installation
Refer to the attached diagram and note that you will need to drill a hole in your countertop to place the smart faucet if one is not already available. Also, an adapter will be installed on your household water tubing to connect the RO system’s wastewater and input water tubing.
Electricity is required to run the RO system.
We advise against using well water as the source for our RO systems. Additionally, we do not recommend connecting a tankless RO system to a refrigerator, ice maker, or salt-based water softener.
It is strongly advised to install this RO system with components from Waterdrop. Installing with parts not provided by Waterdrop could lead to malfunctions or reduce the system’s and filters' lifespan.

Trusted Certifications
The Waterdrop X8 meets safety standards set by the EU and UKCA (United Kingdom Conformity Assessed)
It is NSF/ANSI 58 certified for TDS reduction and NSF/ANSI 372 certified for lead-free material, ensuring high-quality filtration.
View full report here: NSF_ANSI Standard



What makes this Undersink RO water filter stand out?
Equipped with a 9-stage filtration system, this RO filter removes impurities as small as 0.0001 microns. SGS testing confirms it reduces Chlorine, Lead, Fluoride, PFAS, among other contaminants, ensuring clean and refreshing water every time.
How does this RO system perform in terms of filtration?
This RO system’s 9-stage filtration eliminates impurities down to 0.0001 microns. Certified by SGS, it cuts down on Chlorine, Lead, Fluoride, PFAS, and other harmful substances. so you always get the freshest, cleanest water.
How simple is it to install this under-sink water filter, and will I need a professional?
The tankless design of this RO filter makes setup fairly straight forward. However, if don't have basic plumbing skills we would suggest contacting a local plumber. Feel free to contact our friendly team if you need advice !
If I have any issues, who can I contact for support?
Our friendly team is hereif you need advice, simply call 0121 630 1130 or email us on info@regalflow.co.uk
Warranty Information
- 2 Years
Full Specification
Model Number | WD-X8 |
Certification | NSF/ANSI 58 & 372 |
Pure to drain | 2:1 |
Materials | System cover: BPA-free plastic Faucet: smart display faucet RO filter: reverse osmosis membrane CB filter: carbon block CF filter: PP cotton & carbon block |
Product dimensions | 18.2" x 6.25" x 16.72 (L*W*H) |
Item weight | 36.37 pounds |
Faucet | Smart Screen Faucet |
Flow rate | 800 gallons per day (GPD), 0.56 gallon per minute (GPM) |
Indoor or outdoor use | Indoor use only |
Electricity Required | Yes |
Waterdrop X8 is available with free delivery
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