01More than carbon alone
Every Velta purifier uses RO to reduce dissolved matter beyond what carbon filtration handles.
See your RO at work
Reverse osmosis,made visible.
Every Velta purifier uses RO for finer filtration than carbon alone. Built-in TDS readings let you check performance, while filter-life reminders tell you when upkeep is due.
- RO purifiers
- 3 models
- Water reading
- TDS built in
- Filter life
- Kept visible
The Velta difference
Better water. Visible performance. Simple upkeep.
RO goes beyond carbon filtration, TDS lets you check performance, and filter reminders tell you when replacement is due.
01
02See your RO at work
Built-in TDS readings give you an immediate view of RO performance directly from the appliance.
03Know when to change the filter
Each purifier keeps filter life visible and tells you when its cartridges are due for replacement.
Three ways to choose Velta
Start with the water you want.
The right model depends on the water you want—sparkling, temperature-controlled or ambient—and whether it belongs on the counter or under the sink.
Countertop · sparkling and temperature-controlled
01
HydroSpark+
RO-filtered sparkling, cold, ambient and hot water.
Sediment · pre-carbon · RO · post-carbon
Countertop · temperature-controlled
02
HydroForm+
Connected hot, cold and ambient RO water.
PAC composite · RO + ACF · outlet UVC
Under-sink · clear worktop
03
HydroView+
Ambient RO drinking water with a separate filtered rinse path.
Composite pre-filter · RO · post-carbon
How the stages work together
Every filter has a job.
Sediment filters catch particles, carbon improves taste and smell, RO reduces dissolved matter, and the final stage finishes the water.
01
Catch the particles
Sediment and composite pre-filters catch suspended particles and help protect the RO membrane.
02
Improve taste and smell
Activated carbon reduces chlorine-related tastes and smells before or after the RO stage.
03
Reduce dissolved matter
Pressure moves water across the RO membrane, separating the filtered water from a reject stream.
04
Give the water a final polish
Depending on the purifier, post-carbon, ACF or outlet UVC completes the treatment path.
Meet the filters & membranes
The filters inside each purifier.
All three Velta purifiers use reverse osmosis, with cartridges and replacement schedules designed for each model.
4-in-1 composite cartridge
HydroSpark+
Sediment · carbon · RO membrane · post-carbon
One integrated cartridge prepares the water, performs RO separation and refines taste before dispensing.
- Replacement schedule
- 4,000 L / 24 months
PAC + RO / ACF cartridges
HydroForm+
PAC composite · RO membrane + ACF · outlet UVC
The PAC cartridge prepares the water; the RO and activated-carbon fibre cartridge separates and finishes it before the outlet stage.
- Replacement schedule
- PAC 2,100 L / ~6 months · RO + ACF 3,000 L / 1 year
CF + RO cartridges
HydroView+
Composite pre-filter · RO membrane · post-carbon
The composite filter pre-treats the water before it reaches the RO cartridge.
- Replacement schedule
- CF 4,000 L / 12 months · RO 8,000 L / 24 months
Each cartridge is due at the appliance reminder, stated capacity or time interval, whichever comes first.
How to check purifier performanceWhy reverse osmosis
What RO changes in your glass.
RO reduces dissolved matter that carbon alone does not address. The surrounding stages catch particles, improve taste and finish the water.
Physical particles
01
Tiny particles, filtered out
Membrane filtration creates a fine physical barrier for suspended particles and microscopic matter, including microplastics.
Dissolved matter
02
Less dissolved matter
RO reaches beyond sediment filtration to reduce dissolved salts, TDS and selected metals.
Persistent chemicals
03
Helps reduce PFAS
PFAS—per- and polyfluoroalkyl substances—are persistent synthetic chemicals often called “forever chemicals”. The US EPA lists point-of-use RO among the technologies that reduce certain PFAS compounds.
Taste profile
04
Better taste and smell
Activated carbon reduces chlorine-related taste and odour for cleaner-tasting water.
Built for the years after installation
Filters that are easy to reach and replace.
Your purifier lets you know when a filter is due. Matching replacement cartridges and local support are available from Velta Singapore.
The science behind the system
Proven principles. Purposeful design.
Reverse osmosis is a well-established treatment technology. Explore the independent sources behind the filtration approach used throughout the Velta purifier range.
View the research+
01How reverse osmosis worksUS Environmental Protection Agency02Point-of-use RO capabilitiesUS EPA WaterSense03PFAS treatment with point-of-use filtersUS Environmental Protection Agency04Filter types, pore size and chemical reductionUS Centers for Disease Control and Prevention05Microplastics and point-of-use membrane filtrationCherian et al., Polymers (2023)
Frequently asked questions
Choosing a Velta RO water purifier.
01Why does Velta use reverse osmosis in every purifier?
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RO can reduce a broader range of dissolved substances than sediment and carbon filtration alone. Velta pairs it with pre-filters that protect the membrane and a final stage that refines the water.
02How can I see my purifier working?
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The TDS reading on the appliance gives an immediate view of RO performance. HydroSpark+ shows one value in settings, HydroForm+ provides a live TDS reading, and HydroView+ compares inlet and outlet readings at the faucet.
03Which Velta water purifier should I choose?
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HydroSpark+ provides sparkling, cold, ambient and hot water; HydroForm+ provides connected hot, cold and ambient water; HydroView+ supplies ambient drinking water from an under-sink system with a clearer worktop.
04Do all three Velta purifiers use the same filters?
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No. All three use reverse osmosis, but their cartridges and final stages differ. Each model has its own filters, replacement schedule and water output.
05What does the 0.0001 µm figure mean?
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It is the nominal scale of the reverse-osmosis membrane used across the Velta purifier range. It describes how finely the membrane is engineered to separate water from dissolved and microscopic matter.
06Does reverse osmosis remove everything from water?
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No single filter removes everything. RO reduces a broad range of dissolved substances, while sediment, carbon and model-specific finishing stages do the rest of the work.
07How do I maintain a Velta water purifier?
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Follow the appliance reminder and replace cartridges at the stated capacity or time interval, whichever comes first. Timely replacement keeps every stage working as intended.
Compare Velta
Choose your Velta RO water purifier.
Compare sparkling, hot-and-cold and under-sink purifiers by water output, installation, filters and price.