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Best Under-Sink Water Purifiers in India (2026)

10 products comparedPrices checked Aug 2026Independent · affiliate-funded

#1 Top pickKENT Supreme Copper (Under-Sink)₹25,99019% offScore 8.2/10
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#2 Runner-upAO Smith Z9 Green RO₹33,99019% offScore 9/10
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#3 Also greatKENT Grand Plus₹16,49920% offScore 8.9/10
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An under-sink purifier hides the entire unit inside the cabinet below your sink and gives you a slim dedicated faucet at counter level. In a modular kitchen where a wall-mounted white box would ruin the line of the cabinetry, it is the only sensible answer.

Plan it as a plumbing job rather than an appliance purchase. You need an inlet tap-off, a drain connection for the reject line, a power point inside or near the cabinet, and — the part people forget — enough clear space to actually reach the filters when they need changing. Specify it during a kitchen fit-out if you can; retrofitting into a cabinet already crowded with a sink trap and a waste pipe is where these installations go wrong.

The trade-off is service access and visibility. You lose the at-a-glance filter indicators, and every filter change means emptying the cabinet. Weigh that honestly against the aesthetics.

Our ranked picks

Filter by price, brand and feature, or sort by price and running cost. Tick Compare on any two to put their specs side by side.

10 water purifiers

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1Compare
🏆 Best Premium / Best Hot WaterAO Smith
AO Smith Z9 Green RO
Hot water on tap, and the best water recovery in the category
9.0/10our editorial score
- RO + SCMT (Silver Charged Membrane Technology) + Mineraliser
- 9 litres storage tank
- Suitable up to 3000 ppm input TDS
- Water recovery: Up to 2x more than conventional RO (Advanced Recovery Technology)
- TDS controller — retains essential minerals
- Hot & ambient water dispensing
Worth it for the hot water alone
“Tanker water here tests between 900 and 1,400 ppm depending on the month and this handles all of it. The 80 degree setting for tea has genuinely changed our morning routine. Expensive, no regrets.”
— Priya, GurugramVerified purchase+1 more owner report
₹33,99019% off
M.R.P. ₹42,000 Save ₹8,010
Running cost: ≈ ₹4,500/yr
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Indicative price, verified 2026-08-01. Confirm on the marketplace before buying.
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2Compare
🏆 Best OverallKENT
KENT Grand Plus
The default recommendation for Indian borewell water
8.9/10our editorial score
- RO + UV + UF + TDS Controller
- 9 litres storage tank
- Suitable up to 2000 ppm input TDS
- Water recovery: Up to 50% (Save Water technology)
- TDS controller — retains essential minerals
- Warranty: 1 year warranty + 3 years free service
Finally water that does not taste salty
“Our borewell tested at 1,150 ppm and every cheaper purifier we tried gave brackish water. Output now measures around 90 ppm on my own TDS pen. Installation took an hour and the technician actually explained the TDS controller setting.”
— Rakesh, JaipurVerified purchase+1 more owner report
₹16,49920% off
M.R.P. ₹20,500 Save ₹4,001
Running cost: ≈ ₹3,500/yr
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Indicative price, verified 2026-08-01. Confirm on the marketplace before buying.
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3Compare
🏆 Best Tank HygieneLG
LG PuriCare WW182EP
Stainless-steel tank and self-sterilising UV care
8.8/10our editorial score
- RO + Dual Protection Sterilising Care UV
- 8 litres storage tank
- Suitable up to 2000 ppm input TDS
- Warranty: 1 year comprehensive, 4 years on select parts
The steel tank is the whole point
“Our previous purifier's plastic tank developed a smell within two years in this humidity. Two years with the LG and the water still tastes of nothing at all, which is exactly what you want. Takes up counter space but worth it.”
— Ananya, KochiVerified purchase
₹31,99018% off
M.R.P. ₹39,000 Save ₹7,010
Running cost: ≈ ₹4,400/yr
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Indicative price, verified 2026-08-01. Confirm on the marketplace before buying.
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4Compare
🏆 Best Service NetworkAquaguard
Aquaguard Delight NXT
Aquaguard's best-selling all-rounder, now with active copper
8.7/10our editorial score
- RO + UV e-boiling + UF + MTDS + Active Copper
- 6 litres storage tank
- Suitable up to 2000 ppm input TDS
- TDS controller — retains essential minerals
- Copper enrichment
- Warranty: 1 year comprehensive
Service is the reason to buy Aquaguard
“Third purifier in twelve years and the first where service has not been a fight. Metro water here is brackish in summer and the output stays sweet. Tank is small, so during summer cuts we fill bottles in advance.”
— Meenakshi, ChennaiVerified purchase+1 more owner report
₹17,99023% off
M.R.P. ₹23,500 Save ₹5,510
Running cost: ≈ ₹4,200/yr
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Indicative price, verified 2026-08-01. Confirm on the marketplace before buying.
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5Compare
AO Smith
AO Smith X7
AO Smith engineering without the hot-water premium
8.6/10our editorial score
- RO + SCMT + Mineraliser, 8-stage
- 7 litres storage tank
- Suitable up to 2000 ppm input TDS
- Water recovery: Advanced Recovery Technology
- TDS controller — retains essential minerals
- Warranty: 2 years on select components
₹23,49022% off
M.R.P. ₹30,000 Save ₹6,510
Running cost: ≈ ₹4,000/yr
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Indicative price, verified 2026-08-01. Confirm on the marketplace before buying.
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6Compare
Aquaguard
Aquaguard Aura
Copper plus alkaline in Aquaguard's premium domestic unit
8.5/10our editorial score
- RO + UV e-boiling + UF + MTDS + Active Copper + Alkaline
- 7 litres storage tank
- Suitable up to 2000 ppm input TDS
- TDS controller — retains essential minerals
- Copper enrichment
- Alkaline / pH enhancement
₹25,49020% off
M.R.P. ₹32,000 Save ₹6,510
Running cost: ≈ ₹5,200/yr
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Indicative price, verified 2026-08-01. Confirm on the marketplace before buying.
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7Compare
🏆 Best Value Hot WaterHavells
Havells Aqua S
Hot and ambient dispensing at a sane price
8.5/10our editorial score
- RO + UV + Mineral fortification, 7-stage
- 6.5 litres ambient + hot tank storage tank
- Suitable up to 2000 ppm input TDS
- TDS controller — retains essential minerals
- Hot & ambient water dispensing
- Warranty: 1 year comprehensive + 3 years on RO membrane
₹21,49022% off
M.R.P. ₹27,500 Save ₹6,010
Running cost: ≈ ₹3,700/yr
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Indicative price, verified 2026-08-01. Confirm on the marketplace before buying.
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8Compare
KENT
KENT Pearl RO
Counter-top KENT with a UV-sterilised tank
8.4/10our editorial score
- RO + UV + UF + TDS Controller
- 8 litres storage tank
- Suitable up to 2000 ppm input TDS
- Water recovery: Up to 50%
- TDS controller — retains essential minerals
- Warranty: 1 year + 3 years free service
₹17,99018% off
M.R.P. ₹22,000 Save ₹4,010
Running cost: ≈ ₹3,600/yr
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Indicative price, verified 2026-08-01. Confirm on the marketplace before buying.
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9Compare
🏆 Safest Filter-Life EnforcementPureit
Pureit Copper+ RO
HUL's copper RO with an enforced filter-life cut-off
8.4/10our editorial score
- RO + UV + MF + Copper Charge technology
- 8 litres storage tank
- Suitable up to 2000 ppm input TDS
- TDS controller — retains essential minerals
- Copper enrichment
- Warranty: 1 year
The shut-off is annoying and I am glad it exists
“Ran out of water for two days because I ignored the warnings. Entirely my fault. My previous purifier had a blinking light I ignored for a year, which is worse. Water quality has been consistent for 18 months.”
— Deepak, LucknowVerified purchase
₹15,99927% off
M.R.P. ₹22,000 Save ₹6,001
Running cost: ≈ ₹3,800/yr
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Indicative price, verified 2026-08-01. Confirm on the marketplace before buying.
Read full review →
10Compare
KENT
KENT Supreme Copper (Under-Sink)
Hidden under the counter, copper-enriched at the tap
8.2/10our editorial score
- RO + UV + UF + Copper + TDS Controller
- 8 litres (concealed) storage tank
- Suitable up to 2000 ppm input TDS
- TDS controller — retains essential minerals
- Copper enrichment
- Warranty: 1 year + 3 years free service
₹25,99019% off
M.R.P. ₹32,000 Save ₹6,010
Running cost: ≈ ₹4,200/yr
Buy on Amazon Buy on Flipkart
Indicative price, verified 2026-08-01. Confirm on the marketplace before buying.
Read full review →

Quick comparison

Best Under-Sink Water Purifiers in India (2026) — comparison of key specifications
#	Product	Price	Score	Max input TDS	Best for
1	KENT Supreme Copper (Under-Sink)	₹25,990	8.2/10	2000 ppm	Modular kitchens where the purifier must be invisible.
2	AO Smith Z9 Green RO	₹33,990	9/10	3000 ppm	Premium kitchens, high-TDS or brackish supply, and households that drink a lot of tea and coffee.
3	KENT Grand Plus	₹16,499	8.9/10	2000 ppm	Families on borewell, tanker or high-TDS municipal supply who want the safest all-round choice.
4	LG PuriCare WW182EP	₹31,990	8.8/10	2000 ppm	Hygiene-focused buyers, humid coastal cities, and anyone who has ever opened a purifier tank and been unpleasantly surprised.
5	Aquaguard Delight NXT	₹17,990	8.7/10	2000 ppm	Buyers who value service reliability and compact design over maximum tank capacity.
6	AO Smith X7	₹23,490	8.6/10	2000 ppm	Buyers who want AO Smith's engineering and water efficiency but do not need hot water.
7	Aquaguard Aura	₹25,490	8.5/10	2000 ppm	Premium buyers who want copper and alkaline options in one well-built unit.
8	Havells Aqua S	₹21,490	8.5/10	2000 ppm	Buyers who want hot water on tap without paying premium-brand prices.
9	KENT Pearl RO	₹17,990	8.4/10	2000 ppm	Renters and anyone who cannot drill walls, but still needs full high-TDS RO purification.
10	Pureit Copper+ RO	₹15,999	8.4/10	2000 ppm	Safety-first households, and anyone who has previously forgotten filter changes.

Prices are indicative street prices, last verified 2026-08-01. Always confirm the current price on the marketplace before purchasing.

Frequently asked questions

Is an under-sink water purifier better than a wall-mounted one?

Not technically — the purification is identical. It is a space and aesthetics decision. Under-sink frees your counter and wall completely and looks built-in, at the cost of harder servicing and no visible filter indicators. Choose under-sink for a planned modular kitchen; choose wall-mount for a retrofit or if you want easy access.

How much space does an under-sink purifier need?

Budget roughly 40 x 25 x 45 cm of clear cabinet space, plus room to withdraw filter housings — typically another 15 cm of clearance in front. Measure around your sink trap and waste pipe before ordering, and confirm there is a power point available inside the cabinet.

What is a direct-piping water purifier?

A direct-piping (or tankless) purifier dispenses purified water on demand straight from the line, with no storage tank. It saves a lot of space and eliminates tank hygiene concerns entirely, but it needs consistent line pressure and stops working during a water cut — there is no stored buffer. Best suited to homes with reliable 24-hour supply.

Best Under-Sink Water Purifiers in India (2026)

Our ranked picks

AO Smith Z9 Green RO

KENT Grand Plus

LG PuriCare WW182EP

Aquaguard Delight NXT

AO Smith X7

Aquaguard Aura

Havells Aqua S

KENT Pearl RO

Pureit Copper+ RO

KENT Supreme Copper (Under-Sink)

Quick comparison

Frequently asked questions

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