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Best Under-Sink Water Purifiers in India (2026)

20 products comparedPrices checked Sep 2026Independent · affiliate-funded
  1. #1 Top pickKENT Supreme Copper (Under-Sink) water purifier by KENT — product imageKENT Supreme Copper (Under-Sink)₹25,99019% offScore 8.2/10
  2. #2 Runner-upKENT Sterling Plus water purifier by KENT — product imageKENT Sterling Plus₹20,94911% offScore 8/10
  3. #3 Also greatKENT Sterling IoT RO Water Purifier water purifier by KENT — product imageKENT Sterling IoT RO Water Purifier₹22,79919% offScore 8/10

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.

20 water purifiers

  1. 1KENT Supreme Copper (Under-Sink) water purifier by KENT — product image

    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

    Indicative price, verified 2026-08-01. Confirm on the marketplace before buying.

    Read full review →
  2. 2KENT Sterling Plus water purifier by KENT — product image

    KENT Sterling Plus

    RO + UV + UF + TDS Controller water purifier with a 6 L tank

    8.0/10our editorial score
    • RO + UV + UF + TDS Controller
    • 6 litres storage tank
    • Suitable up to 2000 ppm input TDS
    • TDS controller — retains essential minerals
    ₹20,94911% off

    M.R.P. ₹23,500 Save ₹2,551

    Running cost: ≈ ₹3,350/yr

    Indicative price, verified 2026-09-20. Confirm on the marketplace before buying.

    Read full review →
  3. 3KENT Sterling IoT RO Water Purifier water purifier by KENT — product image

    KENT Sterling IoT RO Water Purifier

    RO + UV + UF + Alkaline + Copper + TDS Control water purifier with a 6 L tank

    8.0/10our editorial score
    • RO + UV + UF + Alkaline + Copper + TDS Control
    • 6 litres storage tank
    • Suitable up to 2000 ppm input TDS
    • TDS controller — retains essential minerals
    • Copper enrichment
    • Alkaline / pH enhancement
    ₹22,79919% off

    M.R.P. ₹28,000 Save ₹5,201

    Running cost: ≈ ₹3,350/yr

    Indicative price, verified 2026-09-20. Confirm on the marketplace before buying.

    Read full review →
  4. 6KENT Excell Plus water purifier by KENT — product image

    KENT Excell Plus

    RO + UV + UF + Alkaline + Copper + TDS Controller water purifier

    7.9/10our editorial score
    • RO + UV + UF + Alkaline + Copper + TDS Controller
    • Suitable up to 2000 ppm input TDS
    • TDS controller — retains essential minerals
    • Copper enrichment
    • Alkaline / pH enhancement
    ₹20,99921% off

    M.R.P. ₹26,500 Save ₹5,501

    Running cost: ≈ ₹3,350/yr

    Indicative price, verified 2026-09-20. Confirm on the marketplace before buying.

    Read full review →
  5. 8Aquaguard Aspire Designo RO+UV Active Copper Alkaline water purifier by Aquaguard — product image

    Aquaguard Aspire Designo RO+UV Active Copper Alkaline

    Under-sink RO + UV + Copper + Alkaline water purifier with a 7 L tank

    7.9/10our editorial score
    • RO + UV + Copper + Alkaline
    • 7 litres storage tank
    • Suitable up to 2000 ppm input TDS
    • Copper enrichment
    • Alkaline / pH enhancement
    ₹26,29934% off

    M.R.P. ₹40,000 Save ₹13,701

    Running cost: ≈ ₹3,000/yr

    Indicative price, verified 2026-09-29. Confirm on the marketplace before buying.

    Read full review →
  6. 17Aquaguard UTC UV Booster Copper water purifier by Aquaguard — product image

    Aquaguard UTC UV Booster Copper

    Under-sink UV + Copper (inline, no tank) water purifier

    7.4/10our editorial score
    • UV + Copper (inline, no tank)
    • Suitable up to 200 ppm input TDS
    • Copper enrichment
    ₹15,4493% off

    M.R.P. ₹16,000 Save ₹551

    Running cost: ≈ ₹1,200/yr

    Indicative price, verified 2026-09-29. Confirm on the marketplace before buying.

    Read full review →

Quick comparison

Best Under-Sink Water Purifiers in India (2026) — comparison of key specifications
#ProductPriceScoreMax input TDSBest for
1KENT Supreme Copper (Under-Sink)₹25,9908.2/102000 ppmModular kitchens where the purifier must be invisible.
2KENT Sterling Plus₹20,9498/102000 ppmA small household on borewell, tanker or high-TDS municipal supply
3KENT Sterling IoT RO Water Purifier₹22,7998/102000 ppmA small household on borewell, tanker or high-TDS municipal supply
4Aquaguard Aspire Select Designo UTC RO+UV Copper₹22,4998/102000 ppmA modular kitchen on borewell, tanker or high-TDS supply
5Aquaguard Enrich Select Designo RO+UV Active Copper₹20,9998/102000 ppmA modular kitchen on borewell, tanker or high-TDS supply
6KENT Excell Plus₹20,9997.9/102000 ppmA small household on borewell, tanker or high-TDS municipal supply
7Livpure Under The Counter (UTC) Neon Water Purifier₹19,3007.9/102000 ppmA small household on borewell, tanker or high-TDS municipal supply
8Aquaguard Aspire Designo RO+UV Active Copper Alkaline₹26,2997.9/102000 ppmA modular kitchen on borewell, tanker or high-TDS supply
9Aquaguard Aspire Designo NXT UTC WS RO+UV Copper₹26,2997.9/102000 ppmA modular kitchen on borewell, tanker or high-TDS supply
10Faber FWP UTS CLASSIC ( RO + UV + Alkaline )₹16,9997.8/102000 ppmA small household on borewell, tanker or high-TDS municipal supply
11Aquaguard Aspire Invisio 2X RO+UV Active Copper Alkaline₹33,5997.8/102000 ppmA modular kitchen on borewell, tanker or high-TDS supply
12Livpure STEALTH 7 L RO + UV + Copper Water Purifier Under the Sink₹19,9907.7/102000 ppmA small household on borewell, tanker or high-TDS municipal supply
13AO Smith X5+ Neo₹22,8007.6/102000 ppmA small household on borewell, tanker or high-TDS municipal supply
14AO Smith X5+₹22,8007.6/102000 ppmA small household on borewell, tanker or high-TDS municipal supply
15AO Smith Z2+₹25,9007.5/102000 ppmA small household on borewell, tanker or high-TDS municipal supply
16AO Smith Z2 Pro₹27,1007.5/102000 ppmA small household on borewell, tanker or high-TDS municipal supply
17Aquaguard UTC UV Booster Copper₹15,4497.4/10200 ppmA modular kitchen on low-TDS municipal supply
18Aquaguard Aspire Designo NXT UTC UV+UF Copper₹19,9997.4/10200 ppmA modular kitchen on low-TDS municipal supply
19AO Smith Z2 Pro Vogue(Midnight Black)₹28,1006.9/10200 ppmMunicipal supply already low in dissolved solids — not for borewell or tanker water
20AO Smith Z2 Pro Vogue (Walnut)₹29,9906.9/10200 ppmMunicipal supply already low in dissolved solids — not for borewell or tanker water

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.

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