Waterdrop X8 reverse osmosis system
Fast, Tankless Reverse Osmosis with Smart Monitoring
The Waterdrop X8 is a compact under-sink reverse osmosis system designed for homes that want high-capacity filtered water without a bulky storage tank. It combines a manufacturer-rated 800 GPD output, 9-stage filtration, a 2:1 pure-to-drain ratio and a smart display faucet that shows TDS and filter-life information at the sink.
800 GPD output
High-capacity, on-demand filtered water.
9-stage filtration
Includes a 0.0001 micron RO membrane.
Pure-to-drain ratio
Two parts filtered water to one part drain water.
Smart display faucet
Check TDS and filter status at the tap.
9-stage reverse osmosis filtration
Fine Filtration for Everyday Drinking and Cooking
The X8 combines pre-filtration, activated carbon and a 0.0001 micron reverse osmosis membrane to reduce dissolved solids and a broad range of common drinking-water contaminants. Waterdrop lists TDS, PFOA, PFOS, chlorine, fluoride, barium, salts, sediment, chromium VI, lead, microplastics and odour among the substances addressed by the certified system.
- 0.0001 micron reverse osmosis membrane
- Designed to reduce TDS and dissolved salts
- Carbon treatment helps improve taste and odour
- Filtered water delivered through a dedicated smart faucet
Important: Reduction performance depends on feed-water quality, pressure, temperature, filter condition and correct installation. Certification applies to the specific claims in Waterdrop’s performance data sheet.
High-capacity performance
800 GPD Flow Without a Storage Tank
With a manufacturer-rated capacity of 800 gallons per day, the X8 filters water as it is requested rather than slowly filling a conventional pressure tank. Waterdrop states that it can fill a 6 oz cup in approximately five seconds under suitable operating conditions.
Compact under-sink design
More Cupboard Space, Fewer Separate Components
The tankless cabinet measures approximately 46.2 × 15.9 × 42.5 cm. Its narrow profile keeps the filtration stages together in one unit and removes the need to find room for a separate storage tank.
- Compact 15.9 cm cabinet width
- Front-access quick-change cartridges
- Single enclosed cabinet rather than separate filter housings
- Suitable for indoor under-sink installation
Measure the available width, height and depth before ordering, leaving additional clearance for the pipework, electrical lead and filter servicing.
Independently certified performance
Certified to NSF/ANSI 42, 58 and 372
The Waterdrop X8 is certified by IAPMO R&T against NSF/ANSI 42 and 58 for the reduction claims specified in the performance data sheet, and to NSF/ANSI 372 for low-lead material requirements.
Aesthetic effects
Performance related to claims such as chlorine, taste and odour reduction.
Reverse osmosis systems
RO system performance, including certified contaminant-reduction claims.
Low-lead compliance
Material requirements for components that contact drinking water.
Smart faucet and simple maintenance
Water Quality and Filter Life at a Glance
The supplied smart faucet displays the filtered-water TDS reading and current filter status, helping you monitor the system without opening the cupboard. The front-loading cartridges use a quick twist-and-lock design when replacement is due.
- Real-time filtered-water TDS display
- Filter-life monitoring and replacement alerts
- Colour status indication at the faucet
- Quick-access cartridges at the front of the unit
Use the supplied smart faucet to retain the X8’s TDS and filter-life display functions. Alternative taps may dispense the water but will not necessarily support the monitoring features.
Replacement filter schedule
Three Filters with Individual Service Lives
The smart faucet tracks filter use, so replacements can be planned without relying on memory alone. Actual life varies with local water quality and household consumption.
or 1,100 gallons
or 550 gallons
or 2,200 gallons
Installation planning
Check the Plumbing, Power and Faucet Position First
The X8 is a powered reverse osmosis system. It needs a cold-water supply, a drain connection, an electrical socket and a suitable position for its dedicated smart faucet.
Measure the cupboard
Allow room around the 46.2 × 15.9 × 42.5 cm cabinet for tubing and future filter changes.
Confirm the cold feed
The system connects to the incoming cold-water line using the supplied feed-water adapter.
Plan the drain point
Reverse osmosis produces drain water, so the supplied drain saddle must be fitted correctly.
Check power and faucet
A nearby socket and a suitable worktop or sink opening are required for full operation.
New to tankless RO? Read the Regal Flow tankless reverse osmosis guide .
Included installation kit
What Comes with the Waterdrop X8?
The manufacturer lists ten core items in the box for the standard X8 package.
- X8 system
- X8 filter set
- Smart display faucet
- Power adapter
- Red 1/4-inch drain tubing
- Feed-water adapter and inlet tubing
- Drain saddle
- Reference sticker
- PTFE sealing tape
- Lock clips
Technical details
Waterdrop X8 Specifications
| Model | Waterdrop X8 |
|---|---|
| System type | Tankless under-sink reverse osmosis |
| Rated capacity | 800 GPD |
| Filtration | 9-stage, including 0.0001 micron RO membrane |
| Pure-to-drain ratio | 2:1 under rated conditions |
| Faucet | Smart display faucet with TDS and filter-life monitoring |
| Dimensions | 46.2 × 15.9 × 42.5 cm |
| Product weight | 16.5 kg |
| Certifications | NSF/ANSI 42, 58 and 372 |
| Power required | Yes |
| Installation | Indoor use only |
| Manufacturer warranty | 2 years |
| Remineralisation | No mineral-addition stage in the standard X8 configuration |
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Frequently asked questions
Waterdrop X8 Questions
How many filtration stages does the Waterdrop X8 have?
The current Waterdrop X8 product specification states 9-stage filtration, including a 0.0001 micron reverse osmosis membrane.
Does the X8 need a storage tank?
No. It is a tankless system that filters water on demand, helping reduce the amount of cupboard space needed compared with a traditional tank-based RO installation.
Does the Waterdrop X8 require electricity?
Yes. A suitable nearby electrical socket is required to power the pump, monitoring and other electronic functions.
What does the smart faucet display?
It displays the filtered-water TDS reading and filter-life status, with alerts to help show when a cartridge needs replacing.
How often do the X8 filters need changing?
Waterdrop rates the F2 for up to 6 months, the F1G for up to 12 months and the X8-F3 for up to 24 months. Actual replacement intervals depend on feed-water quality and usage.
Does the Waterdrop X8 remineralise the water?
No. The standard X8 configuration does not include an alkaline or remineralisation stage. It is designed as a high-flow reverse osmosis filtration system.
Can the X8 connect to an existing three-way kitchen tap?
A compatible tap may dispense the filtered water, but replacing the supplied smart faucet can mean losing the built-in TDS display and filter-life information. Contact Regal Flow before ordering if you want to use a different tap.
Is professional installation required?
The system is supplied with an installation kit, but fitting involves the cold-water feed, waste connection, power and smart faucet. Use a competent installer if you are not confident modifying plumbing or drilling the sink or worktop.
Friendly expert support
Need to Check Your Plumbing or Available Space?
Send Regal Flow a photograph of the pipework beneath your sink and the available cupboard measurements. We will help you check the likely connection and installation requirements before ordering.
