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Kitchen Essentials

Best RO Water Purifiers in India (2026)

We compared 14 RO water purifiers for borewell and tanker water on TDS rating, real UV stage, mineral restoration, filter costs and owner reviews. From ₹6,999.

By Founder, ChefPicks Updated:
~10 min read
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If your home runs on borewell water, tanker deliveries or a supply that tastes salty and leaves white scale on the kettle, you need an RO purifier. Reverse osmosis is the only household technology that brings down high TDS and removes dissolved contaminants like fluoride and arsenic, which UV and UF purifiers cannot touch. For a family of four drinking, cooking dal and making chai from the same supply every day, it matters that the purifier matches the water.

We evaluated 20 RO purifiers sold on Amazon.in and shortlisted 14, comparing each one's rated TDS limit, whether its UV stage is inline or only in the tank, how it restores minerals, filter life and costs, and the most recent verified owner reviews. We dropped purifiers with high recent failure rates, no genuine Indian reviews, or a lifetime Amazon rating below 4 stars.

Part of our complete water purifier guide

Not sure your water actually needs RO?

Find your purifier type in 3 questions

Our Top Pick

Top Pick
Aquaguard Delight Aquasaver RO+UV+UF+MC

Aquaguard Delight Aquasaver RO+UV+UF+MC

The most complete RO+UV+UF package here, with the longest filter life and the best water-recovery claim.

7.5
  • A real inline UV stage after the RO membrane, not just a UV lamp in the storage tank
  • 2-year filter life, the longest of any RO purifier in this list
  • Rated for water up to 2,000 ppm TDS, enough for most hard borewell and tanker supplies
  • The best-documented water recovery claim here: 60% higher recovery than older Aquaguard RO models
  • Backed by Eureka Forbes' service network across 19,000+ pin codes

Best Picks by Budget

Best Under ₹7,500

Konvio Neer Elixir RO+UV+UF+TDS

Konvio Neer Elixir RO+UV+UF+TDS

₹6,999

Scores 7.2/10 with a full RO+UV+UF stack, an adjustable TDS controller and a 15 L tank, the most purifier for the money here.

Best Under ₹15,000

Aquaguard Delight Aquasaver RO+UV+UF+MC

Aquaguard Delight Aquasaver RO+UV+UF+MC

₹11,499

Our top pick at 7.5/10: inline UV, 2-year filters and a 2,000 ppm rating, backed by the widest service network.

Quick Comparison

Comparison of 14 products by our rating, price and key specifications. The highest rating and the lowest price are highlighted.
ChefPicks RatingAmazonPriceMax TDS
7.5
4.2/5 ₹11,499 2,000 ppm
Check Price
7.2
4.3/5 ₹8,999 2,000 ppm
Check Price
7.2
4.3/5 ₹14,699 2,000 ppm
Check Price
7.2
4.2/5 ₹6,999 (lowest price) 2,000 ppm
Check Price
Best Mineral & Taste Restoration
7.0
4.1/5 ₹15,599 Not reliably stated
Check Price
Best Long-Term Warranty
7.0
4.3/5 ₹15,999 Not stated
Check Price
7.0
4.3/5 ₹7,484 3,000 ppm (claimed)
Check Price
Best Smart Features
6.9
4.2/5 ₹18,999 Not stated
Check Price
6.5
4.3/5 ₹8,399 2,000 ppm
Check Price
6.5
4.0/5 ₹13,999 500 ppm
Check Price
6.4
4.4/5 ₹11,899 300 ppm (listed)
Check Price
6.4
4.2/5 ₹7,799 2,000 ppm
Check Price
Best for Instant Hot Water
6.2
4.2/5 ₹25,199 1,999 ppm
Check Price
Best Space-Saving Design
6.0
4.3/5 ₹16,199 2,000 ppm
Check Price

How We Rated These Products

Based on purification for high-TDS water, mineral restoration, running costs, recent verified owner reviews and value for Indian borewell and tanker water

Scored out of 10
  • Purification for High-TDS Water 30%

    The TDS level the purifier is rated for, its stage combination (RO+UV+UF ranks above RO+UV, RO+UF and RO with a mineral cartridge only), stated water recovery, and whether the UV stage is inline or only sterilises the storage tank.

  • Mineral & Taste Restoration 15%

    How the purifier puts minerals back after RO strips them: an adjustable TDS controller ranks highest, then a fixed mineral or alkaline cartridge, then nothing at all.

  • Maintenance Cost & Service Network 20%

    Stated filter life, replacement costs owners report, the brand's service reach, and whether an ISI/BIS claim is backed by details on the listing or appears only in the title.

  • Reliability & Owner Experience 20%

    The most recent verified Indian owner reviews: leaks, pump failures, installation delays and how service actually responded.

  • Value for Money 15%

    The price shown on the Amazon.in product page, weighed against the stages, TDS rating, tank size and mineral technology on offer.

Detailed Reviews

Aquaguard Delight Aquasaver RO+UV+UF+MC

Top Pick

The most complete RO+UV+UF package here, with the longest filter life and the best water-recovery claim.

Our Rating

7.5

Specifications

Brand Aquaguard (Eureka Forbes)
Purification RO+UV+UF + Mineral Charge
Max TDS 2,000 ppm
UV Stage Inline UV
Minerals Fixed mineral cartridge (calcium, magnesium)
Filter Life 2 years
Water Recovery 60% higher than older Aquaguard RO (brand claim)
Tank 6.2 L
Flow Rate 20 L/hr
Service Network 19,000+ pin codes

Pros

  • Real inline UV stage, not just a lamp in the tank
  • 2-year filter life, the longest in this list
  • Rated for 2,000 ppm TDS, enough for most borewell and tanker water
  • Best-documented water recovery claim here
  • Eureka Forbes service across 19,000+ pin codes
  • Sells 2,000+ units a month, so its record rests on a big owner base

Cons

  • No adjustable TDS controller; the mineral level is fixed by the cartridge
  • 22% of recent reviews are negative, mostly about installation delays and warranty disputes
  • Owners report a full filter set can cost ₹4,000 or more

Rating Breakdown

Purification for High-TDS Water 8.5
Mineral & Taste Restoration 6.5
Maintenance Cost & Service Network 7.5
Reliability & Owner Experience 6.5
Value for Money 8.0

Our Verdict

The Delight Aquasaver is the safest all-round choice for hard water: a genuine inline UV stage after the membrane, a 2,000 ppm rating and 2-year filters, from the brand with the widest service reach. Its recent reviews hold up at scale, with installation delays the main complaint rather than purification failures. You give up an adjustable TDS controller, so pick a KENT if fine-tuning taste matters more to you.

Aquaguard Sure Delight NXT RO+UV Water Purifier

A dependable RO with a real inline UV stage at an approachable price.

Our Rating

7.2

Specifications

Brand Aquaguard (Eureka Forbes)
Purification RO+UV
Max TDS 2,000 ppm
UV Stage Inline UV
Minerals Not stated on the listing
Filter Life 1 year / 6,000 L
Tank 6 L
Service Network 17,000+ pin codes
Certification Listing cites NABL/WQIA testing, not an ISI licence

Pros

  • Genuine inline UV stage
  • Rated for 2,000 ppm TDS
  • Only 15% of recent reviews are negative, among the best here
  • Big-brand service at ₹8,999
  • Service across 17,000+ pin codes

Cons

  • No TDS controller or mineral cartridge mentioned, so output water may be very low in minerals
  • Some buyers report cancelled installations in their city
  • One owner was surprised by a ₹4,000 filter-set bill

Rating Breakdown

Purification for High-TDS Water 8.0
Mineral & Taste Restoration 5.0
Maintenance Cost & Service Network 6.8
Reliability & Owner Experience 7.5
Value for Money 7.8

Our Verdict

The Sure Delight NXT gives you the same inline UV design as the top pick for ₹2,500 less, and its recent owner reviews are some of the cleanest in the list. The trade-off is minerals: the listing mentions no mineral cartridge or TDS controller, so the water may taste flat. For a family that cares more about reliability than taste tuning, it's excellent value.

Pureit Eco Elite 2X RO+UV+MF+Alkaline

8-stage RO+UV+MF purification with a genuine 2-year filter warranty and a 10 L tank.

Our Rating

7.2

Specifications

Brand Pureit (HUL)
Purification RO+UV+MF + Alkaline
Max TDS 2,000 ppm
UV Stage High-intensity UV chamber
Minerals Fixed alkaline mineralizer
Filter Life 2 years / 12,000 L (all filters covered)
Water Saving Up to 50% (brand claim)
Tank 10 L
Flow Rate 24 L/hr

Pros

  • 2-year filter warranty covering all filters
  • Up to 50% water saving claimed
  • 10 L tank, among the largest here
  • Alkaline mineralizer restores minerals
  • 17% of recent reviews negative, a solid record

Cons

  • Some units arrived damaged, occasionally even the replacement
  • One buyer's tap leak went unresolved despite follow-ups
  • No ISI/BIS licence stated on the listing

Rating Breakdown

Purification for High-TDS Water 7.5
Mineral & Taste Restoration 7.0
Maintenance Cost & Service Network 7.0
Reliability & Owner Experience 7.3
Value for Money 7.0

Our Verdict

The Eco Elite 2X is a well-rounded mid-premium pick: a continuous UV chamber, a 10 L tank and, unusually, a 2-year warranty that covers every filter. Owners are broadly happy, and the main complaints are about units damaged in transit rather than how it purifies. Check the box on delivery and it's a strong choice for larger households.

Konvio Neer Elixir RO+UV+UF+TDS

Best Budget

The cheapest fully loaded RO+UV+UF purifier here, with an adjustable TDS controller.

Our Rating

7.2

Specifications

Brand Konvio Neer
Purification RO+UV+UF + Alkaline
Max TDS 2,000 ppm
UV Stage UV (inline or tank not specified)
Minerals Adjustable TDS controller + alkaline
Filter Life Not stated
Tank 15 L
Service Paid installation, chargeable visits

Pros

  • Lowest price in this list at ₹6,999
  • Adjustable TDS controller lets you tune taste
  • Largest tank here at 15 L
  • Full RO+UV+UF+mineral combination

Cons

  • One recent owner reported the RO barely lowered TDS (430 ppm in, 400 ppm out)
  • No nationwide service network; installation and visits are charged
  • A slow seller, so its record is thinner than the big brands'

Rating Breakdown

Purification for High-TDS Water 7.3
Mineral & Taste Restoration 8.7
Maintenance Cost & Service Network 5.5
Reliability & Owner Experience 7.0
Value for Money 8.0

Our Verdict

The Elixir packs an adjustable TDS controller, a 15 L tank and a full RO+UV+UF stack into the lowest price here. The catch is support: this is a small Ghaziabad company, installation and service visits cost extra, and one owner reported the RO barely working. Buy it if you're comfortable arranging local service, and check the output TDS with a meter after installation.

KENT Supreme Plus Alkaline+Copper RO Water Purifier

Best Mineral & Taste Restoration

The only purifier here with UV in both the water path and the tank, plus full taste control.

Our Rating

7.0

Specifications

Brand KENT
Purification RO+UV+UF + Alkaline + Copper
Max TDS Listing shows 90 ppm, almost certainly an error; confirm with KENT
UV Stage Inline UV + UV in tank
Minerals Adjustable TDS controller + alkaline + copper
Filter Life Not stated
Tank 8 L
Warranty 1 year + 3 years free service
Service Network 19,000+ pin codes

Pros

  • The only dual UV design here (inline plus tank)
  • Adjustable TDS controller with alkaline and copper stages
  • 3 years of free service after the 1-year warranty
  • KENT service across 19,000+ pin codes

Cons

  • The listing's 90 ppm TDS figure is implausible; check KENT's own datasheet
  • Owners report filter sets costing ₹5,000 to ₹7,000 a year
  • 26% of recent reviews are negative, above the typical range here

Rating Breakdown

Purification for High-TDS Water 8.3
Mineral & Taste Restoration 9.0
Maintenance Cost & Service Network 5.8
Reliability & Owner Experience 5.2
Value for Money 6.3

Our Verdict

The Supreme Plus has the most complete purification and taste setup in the list: UV in both the water path and the tank, plus an adjustable TDS controller with alkaline and copper stages. What holds it back is ownership cost, with owners reporting ₹5,000-7,000 a year in filters, and a weaker recent review record. Pick it if taste control matters most and you're happy to budget for upkeep.

Native M1 by Urban Company 10-Stage RO+UV+Copper+Alkaline

Best Long-Term Warranty

The only 2-year unconditional warranty here, with a flat, published refresh price.

Our Rating

7.0

Specifications

Brand Native by Urban Company
Purification RO+UV + Copper + Alkaline + Mineraliser
Max TDS Not stated
UV Stage Inline
Minerals Fixed remineralisation, no TDS-controller mixing
Filter Life 2 years, then ₹5,499 refresh
Tank 8 L
Warranty 2 years unconditional (filters, membrane, electricals)
Certification Claims ISI-certified RO+UV (no licence number shown)

Pros

  • 2-year unconditional warranty covering filters, membrane and electricals
  • Flat ₹5,499 refresh every 2 years instead of open-ended AMC costs
  • Claims ISI-certified RO+UV
  • Copper, alkaline and mineraliser stages

Cons

  • Support is chatbot-first, and several owners couldn't reach a person for real problems
  • Leaks reported by several buyers, one within 15 days
  • Some owners report output TDS dropping as low as 30-69 ppm
  • Max TDS rating not stated

Rating Breakdown

Purification for High-TDS Water 7.8
Mineral & Taste Restoration 7.0
Maintenance Cost & Service Network 6.5
Reliability & Owner Experience 5.8
Value for Money 7.5

Our Verdict

Native changes the ownership model: no AMC, a 2-year warranty that covers everything, then a flat ₹5,499 refresh. That predictability is genuinely useful, but the 'no service needed' promise also means chatbot-first support, and several owners describe leaks and very low output TDS they struggled to get fixed. A good fit for buyers who value clear costs and are comfortable with app-based support.

Aquatec Plus Advance Plus RO+UV+UF+TDS

A well-reviewed RO+UV+UF purifier with a TDS controller at a sharp price.

Our Rating

7.0

Specifications

Brand Aquatec Plus
Purification RO+UV+UF + TDS controller
Max TDS 3,000 ppm (seller claim)
UV Stage Not clearly specified
Minerals Adjustable TDS controller
Filter Life Not stated
Tank 12 L
Seller Small third-party seller
Certification 'ISI Certified' appears only in the title

Pros

  • Full RO+UV+UF with a TDS controller for ₹7,484
  • Claims the highest TDS rating here (3,000 ppm)
  • Only 16% of recent reviews are negative
  • 12 L tank

Cons

  • 'ISI Certified' appears only in the title, with no licence details
  • Sold by a small third-party seller, not a big brand
  • Some owners report service disputes after the sale
  • One report of leaking and auto-fill problems

Rating Breakdown

Purification for High-TDS Water 7.0
Mineral & Taste Restoration 8.5
Maintenance Cost & Service Network 5.0
Reliability & Owner Experience 7.3
Value for Money 7.8

Our Verdict

For ₹7,484 the Advance Plus offers a full RO+UV+UF stack, an adjustable TDS controller and a 12 L tank, and its recent Indian owner reviews are solid. The brand is small, though, service is arranged through the seller, and the 'ISI Certified' title claim isn't backed up anywhere on the listing. Good value if you accept regional-brand support.

KENT Supreme IoT RO Water Purifier

Best Smart Features

The only RO here with app-based filter tracking and automatic service requests.

Our Rating

6.9

Specifications

Brand KENT
Purification RO+UF+UV + Alkaline + Copper
Max TDS Not stated
UV Stage UV in tank
Minerals Adjustable TDS controller + alkaline + copper
Smart Features App tracking, auto service-call registration
Tank 8 L
Flow Rate 20 L/hr
Service Network 19,000+ pin codes

Pros

  • App-based filter-life tracking and remote diagnostics
  • Adjustable TDS controller with alkaline and copper stages
  • Registers a service call automatically when it detects a fault
  • KENT service across 19,000+ pin codes

Cons

  • Owners frequently report Bluetooth and app connection failures
  • Several reviews say installation technicians lacked product knowledge
  • UV only sterilises the tank
  • 23% of recent reviews are negative
  • The priciest KENT here at ₹18,999

Rating Breakdown

Purification for High-TDS Water 7.5
Mineral & Taste Restoration 9.0
Maintenance Cost & Service Network 6.3
Reliability & Owner Experience 5.8
Value for Money 6.0

Our Verdict

The Supreme IoT adds app tracking and automatic service requests to KENT's strong taste-control setup. In practice, owners often report the app failing to connect, which undercuts the main reason to pay extra, and its UV only sterilises the tank. Choose it only if the smart features genuinely matter to you.

Pureit Wave Plus RO+Mineral+UV

A solid HUL-backed RO+UV purifier for everyday borewell and tanker water.

Our Rating

6.5

Specifications

Brand Pureit (HUL)
Purification RO+UV + Mineral
Max TDS 2,000 ppm
UV Stage Protects stored water (tank)
Minerals Fixed mineral cartridge (calcium, magnesium)
Filter Life 6,000 L
Water Saving Up to 45% (brand claim)
Tank 7 L
Flow Rate 20 L/hr
Certification WQA certified

Pros

  • Rated for 2,000 ppm TDS
  • WQA certification claimed
  • Filters rated for 6,000 L
  • Mineral cartridge restores calcium and magnesium

Cons

  • Installation delays and no-shows reported repeatedly
  • Some units arrived defective
  • 24% of recent reviews are negative
  • No adjustable TDS controller

Rating Breakdown

Purification for High-TDS Water 6.8
Mineral & Taste Restoration 6.5
Maintenance Cost & Service Network 6.0
Reliability & Owner Experience 5.8
Value for Money 7.5

Our Verdict

The Wave Plus is a sensible mid-range RO from a major brand, with a 2,000 ppm rating, a mineral cartridge and WQA certification. Its UV protects stored water rather than sitting in the purification path, and installation delays are a recurring complaint. A reasonable pick if a Pureit service centre is nearby.

Livpure Allura Prime RO+UV+UF+Copper+Alkaline

Livpure's best-reviewed RO, though its TDS rating is the lowest here.

Our Rating

6.5

Specifications

Brand Livpure
Purification RO+UV+UF + Copper + Alkaline
Max TDS 500 ppm
UV Stage UV in tank only
Minerals Fixed alkaliser
Maintenance 24 months free maintenance
Tank 7 L

Pros

  • Only 13% of recent reviews are negative, the best in the Livpure range
  • 10-stage RO+UV+UF+copper+alkaline combination
  • 24 months of free maintenance included

Cons

  • Rated for only 500 ppm TDS, borderline for hard borewell water
  • Two reviews on the listing describe other Livpure models, so treat the review base with care
  • UV only sterilises the tank

Rating Breakdown

Purification for High-TDS Water 6.0
Mineral & Taste Restoration 6.3
Maintenance Cost & Service Network 6.5
Reliability & Owner Experience 7.5
Value for Money 6.5

Our Verdict

The Allura Prime has the best recent owner record of any Livpure and includes two years of free maintenance. But its 500 ppm TDS rating is the lowest in the list, which rules it out for genuinely hard borewell water, and its UV only covers the tank. It suits moderate-TDS supplies better than salty ones.

KENT Grand RO Water Purifier

KENT's entry-level RO, with the brand's large service network.

Our Rating

6.4

Specifications

Brand KENT
Purification RO+UF + TDS controller
Max TDS 300 ppm (listed; unusually low for RO)
UV Stage UV LED in tank only
Minerals Adjustable TDS controller
Tank 8 L
Flow Rate 20 L/hr
Service Network 19,000+ pin codes

Pros

  • KENT service across 19,000+ pin codes
  • Adjustable TDS controller
  • Brand says it suits borewell, tanker and municipal water
  • Sells 700+ units a month

Cons

  • The listed 300 ppm TDS rating is too low for hard borewell water, if accurate
  • No display, TDS readout or filter-life indicator
  • UV only sterilises the tank
  • 24% of recent reviews are negative, with waste-water leak complaints

Rating Breakdown

Purification for High-TDS Water 6.0
Mineral & Taste Restoration 8.5
Maintenance Cost & Service Network 6.5
Reliability & Owner Experience 5.5
Value for Money 6.0

Our Verdict

The Grand is the cheapest way into KENT's service network and keeps the adjustable TDS controller. Its purification spec is the weakest in KENT's range here, though: RO+UF with UV only in the tank, and a listed 300 ppm rating that would be too low for hard water. Treat it as a fallback, not a first choice, for salty borewell supplies.

Aquaguard Sure Delight RO+MC 1X

Best Reliability

The simplest setup here, but the most reliable by a clear margin.

Our Rating

6.4

Specifications

Brand Aquaguard (Eureka Forbes)
Purification RO + Mineral Charge
Max TDS 2,000 ppm
UV Stage None (no UV or UF)
Minerals Fixed mineral cartridge
Filter Life 1 year / 6,000 L
Tank 6.2 L
Service Network 17,000+ pin codes

Pros

  • Only 10% of recent reviews are negative, the best record here
  • Cheapest Aquaguard in the list at ₹7,799
  • Service across 17,000+ pin codes
  • Sells 1,000+ units a month

Cons

  • No UV or UF stage after the RO
  • Owners say an extra sediment filter (about ₹1,650) must be bought separately
  • Reportedly meant for source water above 200 ppm TDS

Rating Breakdown

Purification for High-TDS Water 5.0
Mineral & Taste Restoration 6.5
Maintenance Cost & Service Network 6.5
Reliability & Owner Experience 8.3
Value for Money 6.5

Our Verdict

The Sure Delight RO+MC has no UV or UF stage, yet it has the cleanest recent owner record of any RO here. That makes it a fair budget pick from a major brand, as long as you factor in the separate sediment filter owners mention. If your water is untreated borewell or tanker supply, a model with UV adds a useful second barrier.

AO Smith Z9 Pro RO+Silver Shield Ambient/Instant Hot

Best for Instant Hot Water

The only RO here that also dispenses instant hot water.

Our Rating

6.2

Specifications

Brand AO Smith
Purification RO + Silver Charged Membrane
Max TDS 1,999 ppm
Disinfection Silver-charged membrane (no UV)
Minerals Copper-fortified mineralizer + alkaline
Hot Water Instant 45°C and 80°C
Tank 10 L

Pros

  • The only model with instant hot and ambient water
  • Rated for 1,999 ppm TDS
  • Silver-charged membrane gives continuous antimicrobial protection
  • Copper and alkaline mineralizer

Cons

  • The most expensive RO here at ₹25,199
  • Owners describe service as focused on selling AMCs
  • No separate UV or UF stage
  • 24% of recent reviews are negative

Rating Breakdown

Purification for High-TDS Water 7.0
Mineral & Taste Restoration 6.8
Maintenance Cost & Service Network 5.5
Reliability & Owner Experience 5.8
Value for Money 5.5

Our Verdict

The Z9 Pro is the pick if you want hot water on tap for tea and baby formula alongside RO purification rated close to 2,000 ppm. It relies on a silver-charged membrane instead of UV, costs the most here, and several owners feel the service team pushes AMCs harder than it fixes problems.

AO Smith X5+Neo Under Sink RO

Best Space-Saving Design

A compact under-sink RO for kitchens short on counter space.

Our Rating

6.0

Specifications

Brand AO Smith
Purification RO only
Max TDS 2,000 ppm
UV Stage None
Minerals Copper-fortified mineralizer
Installation Under sink, with gooseneck faucet
Tank 6 L
Flow Rate 15 L/hr
Warranty 1 year comprehensive

Pros

  • Under-sink design frees counter space
  • Very positive recent reviews, though from a small base
  • 1-year comprehensive warranty covering membrane, filters and electricals
  • Copper-fortified mineralizer

Cons

  • No UV or UF stage
  • Only 40 ratings so far
  • Needs under-sink installation with a dedicated faucet
  • One owner reports a failure right at the end of warranty

Rating Breakdown

Purification for High-TDS Water 5.5
Mineral & Taste Restoration 6.5
Maintenance Cost & Service Network 5.5
Reliability & Owner Experience 7.7
Value for Money 5.0

Our Verdict

The X5+Neo hides under the sink and still handles 2,000 ppm water, with a copper mineralizer and a comprehensive warranty. It skips any UV stage and has only a small review base so far. If counter space is your main problem, compare it with the other models in our under-sink roundup.

Buying Guide

Do you actually need RO?

RO is the right choice for borewell water, tanker water or any supply above about 500 ppm TDS, the acceptable limit in India's drinking water standard. Treated city water with low TDS mainly needs protection from germs, which a UV + UF purifier gives you without wasting water. Not sure? Our water purifier buying guide works it out in three questions.

RO, UV, UF, MC: what the combination on the box means

RO (reverse osmosis) is the only stage that removes dissolved salts and lowers TDS. UV kills bacteria and viruses but does nothing about salts, so it complements RO rather than replacing it. UF (ultrafiltration) is a fine strainer that polishes the water. MC (mineral cartridge) or a TDS controller adds minerals back after the RO membrane strips them out. For water above 500 ppm TDS, RO must be the base stage; UV or UF on top adds a second barrier against germs.

Check where the UV actually sits

Several listings advertise UV prominently when the lamp only sits inside the storage tank. That keeps stored water clean but does nothing for water still passing through the purifier. An inline UV stage in the water's path is the stronger claim. Read the bullets: 'UV in tank' and 'inline UV' are different things, and a few models have both.

TDS controller vs fixed mineral cartridge

A TDS controller lets a technician adjust how much of the removed mineral content goes back in, which is handy if your borewell TDS changes with the monsoon. It works by mixing in some water that skipped the RO membrane, so avoid it if your water has fluoride or arsenic. A fixed mineral or alkaline cartridge adds a set amount of minerals to fully purified water instead. '100% RO' on the box usually means no bypass, not mineral-free water.

The real cost is service and filters

The most common complaint across owner reviews isn't purification, it's upkeep: filter sets costing ₹4,000 to ₹7,000 a year on some models, installation delays, and AMC plans that didn't deliver. Before buying, check whether filters are covered by the warranty and what a full annual filter change costs for that specific model.

'ISI Certified' needs a licence number

Some listings claim ISI or BIS certification only in the title, with no licence number anywhere else. The Indian standard for RO purifiers is IS 16240; a listing citing IS 10500 is referring to the drinking water standard, not a product certification. If certification matters to you, look for a specific licence number.

Short on counter space?

Many RO purifiers also come in under-sink versions that keep the counter clear. See our best under-sink water purifiers for models sized to Indian modular kitchens.

Match the tank and flow rate to your household

Tanks here range from 6 to 15 litres, and flow rates are listed in different units (litres per hour, per minute or per day), so convert before comparing. A bigger tank matters more if your supply is intermittent, as it often is with borewells and tanker deliveries.

Frequently Asked Questions

Is UV necessary if I already have RO?
The RO membrane blocks most germs on its own, but an ageing or damaged membrane can develop small leaks. A UV or UF stage adds a second barrier. For untreated borewell or tanker water, an RO+UV or RO+UF purifier is the safer choice over RO alone.
What TDS rating should I look for if I use borewell water?
Indian borewell water commonly ranges from 500 to over 2,000 ppm TDS, depending on region and season. Check yours with an inexpensive TDS meter and pick a purifier rated comfortably above it. Be wary of very low or oddly round figures on listings, which are sometimes errors; confirm on the brand's own datasheet.
Do I need RO for city tap water?
Usually not. If your municipal water reads under 500 ppm TDS, a UV + UF purifier handles germs without wasting water or stripping minerals. Our water purifier buying guide helps you decide in three questions.
Why does my RO water taste flat?
RO strips dissolved minerals along with contaminants, so the water can taste flat. A TDS controller or mineral cartridge after the RO stage restores calcium and magnesium and usually improves the taste.
What does 'water recovery' or 'water saving' mean?
Every RO purifier sends some water down the drain carrying the rejected salts. A higher recovery percentage means less water is wasted per litre purified. Treat very high self-reported figures with caution, since they're rarely independently verified. Reject water can be reused for mopping, flushing or washing a car.
How much should I budget for annual maintenance?
Owners of some models report ₹4,000 to ₹7,000 a year in filters when they aren't covered by warranty. Some brands include filters for two years or offer a flat refresh fee; others charge per visit plus parts. Check what's covered before comparing prices.
Does 'ISI Certified' on the box guarantee quality?
Not automatically. Some listings use the term only in the title, with no licence number. IS 16240 is the Indian standard for RO purifiers; IS 10500 is the drinking water standard, not a product certification.
What's the difference between an AMC and a warranty?
A warranty (usually 1 year) covers defects but often excludes filters. An AMC is a separate paid plan for routine service and filter changes. A few purifiers here bundle 2 years of filters or a flat refresh fee instead, which makes costs easier to predict.

Our Verdict

For most Indian homes on borewell or tanker water, the Aquaguard Delight Aquasaver at ₹11,499 is the RO purifier to buy. It pairs a real inline UV stage with a 2,000 ppm rating, 2-year filters and the widest service network in the list.

If you want to fine-tune taste, the KENT Supreme Plus at ₹15,599 has an adjustable TDS controller, alkaline and copper stages, and UV in both the water path and the tank; just budget for its filter costs. The Pureit Eco Elite 2X at ₹14,699 suits bigger families with its 10 L tank and 2-year filter warranty.

On a tighter budget, the Aquaguard Sure Delight NXT at ₹8,999 keeps an inline UV stage and one of the cleanest review records here. The Konvio Neer Elixir at ₹6,999 is the cheapest fully loaded option, as long as you're comfortable arranging local service.

About the Author

Naveen Bhavnani, Founder, ChefPicks

— Founder, ChefPicks

Naveen Bhavnani founded ChefPicks to cut through the noise around kitchen-appliance buying in India. His work is research and analysis — comparing specs, pricing, warranties and real buyer feedback across every category to surface the picks that are genuinely worth your money.

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Aquaguard Delight Aquasaver RO+UV+UF+MC

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Aquaguard Delight Aquasaver RO+UV+UF+MC

₹11,499

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