Under Sink UF Water Purifier
Boon Tap UF Under Sink Water Purifier
Hidden talent.
4.92 · 75 reviewsA 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
₹3,417/mo
6 mo · No-cost
₹1,841/mo*
12 months
₹701/mo*
36 months
*Estimated at 14% yearly interest; your bank’s rate may be higher. The exact amount is shown at checkout.
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- Free Shipping
- Free Installation
- Free Pro Pre Filter
- BIS Certified
- Industry-Leading 2-Year Warranty
10-Day Money-Back Guarantee
T&C apply
- UltraFiltration™
- Zero Water Waste
- Keeps Minerals
- WaterAI™ Visibility
Boon Tap UF Under Sink Water Purifier
₹20,500
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.
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
What's in your water shouldn't be a mystery.
Municipal and treated water across India can still carry chlorine, bacteria, cysts, sediment and turbidity: invisible, but present in every glass. UltraFiltration™ catches them at a 0.01-micron hollow-fibre membrane while letting the natural minerals your water already carries pass straight through, with zero water sent to the drain.
Water sent to the drain. Unlike RO, UltraFiltration has no reject stream: every drop that enters reaches your tap. Commercial-grade components designed for durability, not disposability.
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 UF
Grooved surface holds dirt deep in the channels — flow stays open.
Ordinary UF
Smooth skin — dirt crusts on the surface and chokes flow early.
Nothing goes to the drain
Boon Tap UF
No reject stream — every litre in is a litre at the tap.
Ordinary RO
A share of every litre is sent to the drain as reject water.
Minerals stay where they were
Boon Tap UF
Natural minerals pass straight through the membrane — nothing stripped.
Ordinary RO
Strips minerals out, then adds a synthetic mix back in.
UV that reaches every drop
Boon Tap UF
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.
Your water's natural minerals pass straight through the membrane, then Water Profiles tune the pour through the WaterAI™ app: full enhancement when you move, a lighter profile for coffee, or the balanced default in between.
Profile · 01
Active Mode
Full mineral enhancement for the moments that demand more.
Profile · 02
Daily Mode
Fully filtered, then dosed with balanced minerals. The default that fits most moments, from morning glass to fridge jug.
Profile · 03
Bev Mode
Mineral profile tuned for tea and coffee taste and clarity. Lower mineral load for cleaner extraction and truer flavour.
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.
Below roughly 500 PPM, UF 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 UF 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 UF filter
Your friend enters your code at checkout on their first Boon Tap UF order. A free UF filter ships in the box.
You get one too
Once their order is complete, a coupon for a free UF filter is added to your account and emailed to you.
Every number, on the record.
| System | |
|---|---|
| System type | Multi-stage UltraFiltration™ (UF) |
| 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 | UF Filter (CoreUF 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 | Best suited to supplies below 500 PPM · UF does not reduce TDS |
| Water sent to drain | 0% — no reject stream |
| 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
4.92 out of 5 · 75 reviews
★★★★★
Our society water report said low TDS, so we went UF. Six weeks in and the taste is excellent.
★★★★★
App shows filter life and tank status. Very handy and no guesswork. Proud to support an Indian brand.
★★★★★
Bought this after a lot of research. Our kids drink plenty of water now that it comes straight from a nice tap at the sink.
★★★★★
Writing this review because the product deserves it. Looks like a high end kitchen faucet. Nobody guesses there is a purifier under the sink.
★★★★★
No electricity hungry pumps running all day. Feels efficient and simple.
★★★★★
Bhubaneswar municipal water has a muddy tinge sometimes. Not anymore with the UF. Best decision for our home.
★★★★★
Was confused between options, glad I chose this. Even during heavy rain season the water stays clear. Earlier we had to let it settle in a bucket.
★★★★★
The 8 litre tank is plenty for our family of four. Never run dry even on busy days. Value for money.
★★★★★
Our Bengaluru Cauvery supply is already low TDS, so I did not want RO. Tap UF keeps the natural minerals and the water tastes great. Five stars.
★★★★★
Water profiles are a smart idea. Active mode after evening walks is now a habit. Value for money.
★★★★★
Clean kitchen, clean water, no wastage. Could not ask for more.
★★★★★
Our family is very happy. Recommended by my friend in Kolkata who uses it with municipal water. Now I recommend it to others. Would recommend to friends and family.
★★★★★
My husband did the research, I am the happy user. Natural taste, no flatness. If your water TDS is already low, this is the one to buy. Go for it without a second thought.
★★★★★
Our Gurgaon sector gets canal water supply which is low TDS. UF works perfectly for it.
★★★★★
App sends a reminder well before filter change. Booked service in the app and the engineer came next day.
★★★★★
Previous purifier was mounted on the wall and kept leaking. Under-sink Tap UF is leak-free so far.
★★★★★
The tap does not drip at all after closing. Precise and well made.
★★★★★
Totally worth it. My parents are in Chandigarh with good supply water. Got them the Tap UF and they love the simplicity.
★★★★★
Honest review after daily use. The 20 LPH speed means the tank refills quickly after we cook a big meal.
★★★★★
Installation guy tested the flow and explained the app setup. Took time to answer all my questions.
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.