Under Sink RO Water Purifier
Boon Tap Under Sink RO Water Purifier
Hidden talent.
4.87 · 76 reviewsAn 8-stage purifier under your sink. A solid-steel tap on your counter. Hydration for modern homes, without a single compromise.
Purification
Inclusive of all taxes · Free shipping and installation
Pay monthly
₹3,917/mo
6 mo · No-cost
₹2,110/mo*
12 months
₹804/mo*
36 months
*Estimated at 14% yearly interest; your bank’s rate may be higher. The exact amount is shown at checkout.
Finish
Secure checkout on helloboon.com · Razorpay
- Free Shipping
- Free Installation
- Free Pro Pre Filter
- BIS Certified
- Industry-Leading 2-Year Warranty
10-Day Money-Back Guarantee
T&C apply
- UltraOsmosis™ Filtration
- Water Profiles
- WaterAI™ Visibility
- Crafted Toggle Tap
Boon Tap Under Sink RO Water Purifier
₹23,500
Watch
See Boon Tap in action.
Design & Engineering
The details you notice, and the ones you don't.
LED alerts display
A colour-coded alert bar and digit display on the purification unit, so one look under the sink tells you the system's status.
Flexible installation
The purification unit fits under the counter or on the wall, whichever suits your kitchen.
Finish and colour
Choose the tap finish that fits your kitchen — three options, each one changing the look above the counter.
Glass front, thin profile
A slim, glass-fronted unit that tucks in without a second thought.
The Tap
Your kitchen called. It wants its counter back.
Boon Tap is the purifier you never see and the tap you'll show off. 35 cm of clearance, a smooth toggle and metallic finishes made for your home.
01
35 cm of clearance
Standard purifier taps give you 24 cm. Boon Tap gives you 35, so the big pot and the tall bottle both fit.
02
A full 360° swing
Turn it wherever you need it, with an uninterrupted laminar flow every time.
03
Solid steel, weighted base
Built like a fixture, not a gadget. It feels as solid as it looks.
04
Toggle control
One smooth flick. Water on.
The Unit
All the purifier. None of the evidence.
The entire 8-stage system and an 8 L storage-cum-pressure tank tuck away under your sink. Nothing on your counter but the tap.
01
Slim and glass-fronted
A thin profile that fits tight spaces, with a glass face for when you do look.
02
Always in the know
A digital display and an LED alert bar show your system's status at a glance.
03
Installation
Fits inside a standard sink cabinet or wall-mounts when cabinet space is limited.
04
Full Picture
Everything else lives in WaterAI™, live on your phone.
Finishes
Pick your metal.
Three metallic finishes, made to match your kitchen.
Soul Silver
Limited EditionLimited edition.
Matte Black
Limited EditionLimited edition.
Gunmetal Grey
The signature finish.
WaterAI™
Other purifiers blink. Boon thinks.
Most purifiers flash a light once something has already gone wrong. WaterAI™ reads your water and your Boon Tap every moment, and acts before a problem ever reaches your glass.
01 · Home
Your water, in one number.
What your city's supply brings in at the top, what Boon pours out below it, with mineral balance and temperature. The gap between the two is your purifier at work.
02 · Boon Score
One score for how your water is doing.
Purity, minerals, filter health and your hydration habits, rolled into one score out of 100. Know at a glance how home is doing, and watch it climb.
03 · Insights
It knows how your home drinks.
Daily, weekly and monthly consumption, your highs and lows, and the reason behind them, so you know whether everyone is drinking enough.
04 · Care
Never guess about a filter again.
Every filter's life in percent and weeks left, and how much water it has cleaned against its rated life. Boon tells you before it is due.
- It reads your water — input water quality, output water quality (TDS), water temperature and usage, tracked continuously and shown live in the Boon app. Heat changes how well purification works, so Boon watches it: India's first water purifier to track water temperature.
- It protects itself — water too hot for the filters? WaterAI™ shuts the system down automatically, before any damage is done.
- It learns your home — WaterAI™ learns how your household drinks and tells you exactly when a filter change is due. Not on a calendar. On your usage.
- It checks itself — built-in self-diagnostics test every component and alert you the moment anything fails.
- It answers to you — switch Water Profiles, schedule Care Routines and run a full system report, all from your phone.
iF Design Award 2026 · Winner
Boon WaterAI™ App
Recognised by the iF Design Award — one of the world's longest-running design prizes — for turning live water data into something people actually want to look at.
View the winner profile(opens in a new tab)Care Routines
It cleans up after itself.
Care Routines flush and refresh the system on their own, keeping your water fresh and extending your purifier's life. Auto runs by default; switch to BabySafe or Away in the Boon app.
- Auto
- Watches how your home uses water and starts cleaning cycles exactly when they're needed.
- BabySafe
- Flushes every 2–3 hours, so water for the smallest people in the house is never left standing.
- Away
- Flushes every 24 hours while you travel, so your first glass back tastes like your last one.
Researched by Boon Labs
8 stages. Zero shortcuts.
UltraOsmosis™ is Boon Labs' patented purification platform: commercial-grade engineering, built in-house and made to keep the minerals your body needs.
2 Year Warranty — best in segment.
Built differently
Filters, built differently.
Commercial-grade filtration, built to outlast the standard home RO.
Most home purifiers use filters built for light, occasional use. Boon's filters are commercial-grade, engineered to hold up under real, everyday demand, and they last longer than standard cartridges.
The pre-filter holds more before it chokes
Boon Tap
Grooved surface holds dirt deep in the channels — flow stays open.
Ordinary RO
Smooth skin — dirt crusts on the surface and chokes flow early.
More membrane in the same shell
Boon Tap
Tightly wound membrane — more active surface in the same shell.
Ordinary RO
Loose winding — open gaps, less membrane on every litre.
Minerals from rock, not a factory pellet
Boon Tap
Mineral stones from natural deposits — slow, rock-like release.
Ordinary RO
Identical factory pellets — a fixed synthetic mix.
UV that reaches every drop
Boon Tap
Mirrored chamber — UV reflects wall-to-wall through every drop.
In-tank UV
One bare lamp in a tank — no reflection, light fades fast.
Key Benefits
Everything you want. Nothing extra.
Designed to bring purification, enhancement and intelligence into your kitchen without taking over the space.
Hidden system
All the performance, tucked neatly under your sink.
Beautiful tap
The only part you see is the part you want to.
Personal water
Mineral Enhancers and Water Profiles help shape water around your day.
Live intelligence
WaterAI™ keeps the important details visible.
Water Profiles
Three kinds of water. One beautiful tap.
Each profile changes how much of your chosen minerals reaches the glass. Switch with the buttons or in the Boon app.
Profile · 01
Active
Full mineral enhancement, the strongest of the three. Fully mineralised water for workouts, long days and recovery.
Profile · 02
Daily
Balanced minerals for the rest of your day, from the morning glass to the fridge jug. The default.
Profile · 03
Bev
A lighter mineral load for your coffee ritual and your tea: cleaner extraction, truer flavour. Made for brewing.
Maintenance
Two years. Best in segment.
Boon Tap comes with a 2-year comprehensive warranty: up to 4 scheduled maintenance visits, a free filter change and free repairs for the full two years.
What's included
- Free installation by certified Boon technicians
- Free pre-filter included with every system
- WaterAI™ predictive filter alerts: never guess when to change
- No AMC — pay only for the part you need, after warranty
After the warranty
Pay only for the filters you need. A full filter set costs ₹4,000. No AMC to sign. Brand B charges ₹7,500 for a filter set every year once its warranty ends: ₹22,500 over the same four years.
Boon Tap
Brand B
- Day 1
- Year 1
- Year 2
- Year 3
- Year 4
Trust & Testing
Five-star hotels drank it first.
The same engineering already runs in 400+ hotels and 4,000+ organisations across 9 countries, from Oberoi and Six Senses to Google and McKinsey & Company. Researched in a DSIR-accredited lab, backed by 7 patents.
400+
Hotels worldwide
4,000+
Organisations served
9
Countries
70+
Cities with on-ground service
Our clientele
Trusted by the world's most discerning brands.
From Fortune 500 headquarters to the world's finest hotels, Boon is the hydration partner behind the glass.
- Organizations served
- 4,000+Organizations served
- Hotels worldwide
- 400+Hotels worldwide
- Corporate accounts
- 200+Corporate accounts
- Countries
- 9Countries
Corporate
Hospitality
A selection of Boon accounts. Client marks are the property of their respective owners.
In the press
“The watertech startup keeping the world clean and green”
“Unlocking AI in water management”
“Solving India's water problem”
“Huge leap in reducing use of plastic bottles”
Same job. Different league.
Boon Tap vs
| Feature |  Boon Tap |  AO Smith Z2 Pro |
|---|---|---|
| Warranty | Only Boon Tap 2-year warranty
| 1-year warranty
|
| Tap clearance | 35 cm
| 24 cm
|
| The tap | 360° swivel, solid SS 304
| Chrome gooseneck swivel faucet
|
| Mobile app | WaterAI™ app: live TDS, flow and filter health
| No app |
| Display & status light | Live TDS digit display + colour-coded LED alert bar
| Digital display with filter-change alerts |
| Water profiles | 3 modes: Daily, Active and Bev
| Fixed mineraliser, no modes |
| Under-counter unit | Glass-front slim unit
| Plastic cabinet
|
| Storage tank | 8 L | 6 L |
| Feature | Boon Tap |  Aquaguard Designo UTC |
|---|---|---|
| Warranty | Only Boon Tap 2-year warranty
| 1-year warranty
|
| Tap clearance | 35 cm
| 25 cm
|
| The tap | 360° swivel, solid SS 304
| Chrome faucet
|
| Mobile app | WaterAI™ app: live TDS, flow and filter health
| No app
|
| Display & status light | Live TDS digit display + colour-coded LED alert bar
| LED status and service indicators |
| Water profiles | 3 modes: Daily, Active and Bev
| Taste adjuster set at installation, no modes |
| Under-counter unit | Glass-front slim unit
| Plastic cabinet
|
| Storage tank | 8 L | 8 L |
AO Smith Z2 Pro and Aquaguard Select Designo UTC RO+UV+MTDS are the current under-the-counter RO purifiers from A. O. Smith India and Eureka Forbes, compared on the specifications published on their own product pages in September 2026. Tap clearance is Boon's own measurement of each tap as supplied, from the counter to the underside of the spout. A. O. Smith and Aquaguard are trademarks of their respective owners; the tap drawings are illustrations, not their product photographs.
Know Your Water
RO or UF? Start with your water.
Above roughly 500 PPM, RO is the right call.Check your area’s TDS from government groundwater data, free.
Share Boon. You both get a filter free.
Refer a friend to their first Boon and you both win. They get a free RO filter in the box. You get one too. Every friend, every time, no limit.
Get Your CodeShare your code
Your private Boon Circle code is waiting in My Account. Share the code, never your phone number.
They get a free RO filter
Your friend enters your code at checkout on their first Boon Tap RO order. A free RO filter ships in the box.
You get one too
Once their order is complete, a coupon for a free RO filter is added to your account and emailed to you.
Every number, on the record.
| System | |
|---|---|
| System type | Under-sink RO + UV water purifier |
| Purification | 8-stage UltraOsmosis™ |
| Purification stages | 8 |
| Stage 1 | Pre Filter (InletShield Filter™) |
| Stage 2 | PP Filter (ProFlow Filter™) |
| Stage 3 | Carbon Filter (CarbonCorrect Filter™) |
| Stage 4 | Antiscalant |
| Stage 5 | RO Filter (CoreRO Filter™) |
| Stage 6 | RO Life Enhancer |
| Stage 7 | UV Filter (UV ProGlow Filter™) |
| Stage 8 | Mineral Filter (Mineral Enhancers) |
| Installation | Under-the-counter / sink |
| Application | Domestic drinking water |
| Filtration capacity | 20 LPH |
| Dispensing modes | 3 — Bev, Daily and Active |
| Power requirement | 220 V AC, 50 Hz |
| Operating TDS range | Up to 2,000 TDS |
| Connectivity | App and cloud-based |
| Purification unit | |
| Body material | Plastic + glass front |
| Glass panel colour | Medium grey finish |
| Digital display | Seven-segment display + LED indication strip |
| Dimensions (L × B × H) | 47.0 × 11.0 × 35.5 cm |
| Water outlet | Stainless steel tap |
| Pressure tank | |
| Type | Pressurised storage tank |
| Storage | 8 L storage-cum-pressure tank |
| Pressure range | 40–44 psi |
| Dimensions (D × H) | 24.7 × 33.1 cm |
| Tap | |
| Type | Faucet / tap |
| Material | Stainless steel (SS 304) |
| Finishes | Soul Silver, Matte Black, Gunmetal Grey |
| Mounting hole size | 24 mm |
| Tap clearance | 35 cm |
| In the box | |
| Net quantity | 1 count |
| Included items | Purification unit + tap + pressure tank + installation kit |
| Country of origin | India |
Manufactured & marketed by Swajal Water Pvt. Ltd., GP 61, Sector 18, Sarhol, Gurugram, Haryana, India – 122015. Country of origin: India.
Designed around your kitchen. Mount it on the wall, or tuck it below the sink.
Free installation by Boon's own team, scheduled after delivery. The under sink water purifier unit fits under the counter or on the wall, in several orientations, for even the tightest spaces. Only the tap sits on your counter.
Config · 01
Under the counter
Unit and tank sit together inside a standard sink cabinet. Nothing on the wall, nothing visible. The cleanest install.
Config · 02
Wall-mounted, tank below
The purification unit mounts to the wall. The tank sits beneath. Works when cabinet depth is limited but wall space is open.
Config · 03
Wall-mounted, tank on top
Both unit and tank mount to the wall, stacked. Frees the cabinet entirely, ideal when under-sink space is spoken for.
Questions, answered.
What owners say
4.87 out of 5 · 76 reviews
★★★★★
Our second Boon product at home. Used it for making baby formula after checking with our paediatrician. Very reassuring to have clean water at the sink.
★★★★★
Cooking with RO water from the sink tap is so easy. I fill the pressure cooker directly now. Keep it up, Boon.
★★★★★
Instead of lifting heavy cans, my parents just open the tap. Big relief for their backs.
★★★★★
Matte Black tap does not show fingerprints. Very practical for a busy kitchen. Highly recommended.
★★★★★
Bought it during Diwali sale. Best kitchen purchase of the year by a mile. Keep it up, Boon.
★★★★★
Pressure tank sits neatly next to the unit. Even with the dustbin under the sink there is room.
★★★★★
Water stays cool and fresh from the tank, not warm like from wall units in the sun. Five stars.
★★★★★
The finish of the tap is still shining after daily use and cleaning with a cloth.
★★★★★
App tells me filter life left in percentage. As someone who forgets maintenance, this is a blessing.
★★★★★
Seven-segment display shows the status clearly. Easy to read even in a dark cabinet with a torch.
★★★★★
Very quiet. You hear a faint sound under the sink when it fills the tank, nothing more. Happy customer.
★★★★★
Bev mode for coffee and Daily mode for drinking. I did not think I would use the profiles but I do every day. Five stars.
★★★★★
Washing fruits and vegetables with RO water from the same tap is a big plus for me.
★★★★★
Very happy with this purchase. Ordered online and installation was scheduled for the next day. Smooth experience from start to finish.
★★★★★
Our second Boon product at home. Gunmetal Grey tap is gorgeous. Paired with a black granite counter it looks top class. Five stars.
★★★★★
Customer care helped me reset the app on a new phone within minutes. Friendly team. Highly recommended.
★★★★★
Excellent product. The modes are easy to switch on the unit and on the app. My teen son loves playing with the app. Proud to support an Indian brand.
★★★★★
Honest review after daily use. Glass front on the main unit is nice even though it sits under the sink. You can tell the build quality is good.
★★★★★
Looks like a luxury kitchen fitting. Water quality matches the looks. Very satisfied.
★★★★★
Our second Boon product at home. Earlier purifier needed electricity to dispense and we had no water in power cuts. With the pressure tank we still get water for a while.
For Business
Running an office or a hotel?
The same engineering, built for commercial scale.
Ready for water done right?
Free shipping, free installation and a 10-day money-back guarantee. Every Boon Tap is fitted by a certified technician.