We tested 15+ RO water purifiers and picked the 13 best for Indian homes. Compare purification stages, tank size, TDS handling, warranty and real running costs.
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Bottom Line
For most Indian households on borewell or mixed-supply water, the Pureit Eco Elite 2X offers the best balance of purification quality, tank capacity, and low running costs. If you want zero maintenance for two years, the Native M1 by Urban Company is the one to beat. And if budget is the priority, the Pureit Wave Plus delivers certified RO+UV purification under ₹9,000.
Water quality across India varies wildly — from 100 ppm municipal supply in some cities to 1,500+ ppm borewell water in parts of Rajasthan, Gujarat, and the Deccan belt. An RO purifier isn't optional if your TDS is above 200 ppm; it's the only reliable way to strip dissolved salts, heavy metals, and pesticides that UV alone can't handle. With most families spending 8–12 hours a day at home and relying on purified water for drinking and cooking, getting the right purifier matters more than most appliance decisions.
We researched 15+ RO water purifiers available on Amazon India, shortlisted 13, and scored them on purification quality, storage and flow rate, build durability, maintenance and after-sales, and value for money. Our picks span budgets from under ₹9,000 to over ₹25,000 and cover wall-mount, counter-top, and under-sink form factors.
Our Top Pick
Top Pick
Pureit Eco Elite 2X RO+UV+MF+Alkaline Water Purifier (10L)
The biggest tank and the best all-round score — built for thirsty Indian households.
9.3
Largest 10-litre storage tank in the field — ready for big families and erratic supply
8-stage RO+UV+MF+Alkaline purification with a taste enhancer for balanced, great-tasting water
Fast 24 L/hr purification rate keeps the tank full
+ Up to 50% water recovery — among the most water-efficient here
+ Highest customer rating in the field (4.7)
Cons
− Thin track record — only ~63 ratings so long-term reliability is less proven than rivals with thousands
− Backed by Pureit's standard service network, which draws mixed feedback
− Bulky footprint due to the large tank
Rating Breakdown
Purification & Water Quality9.4
Storage & Purification Rate9.7
Build Quality & Durability9.1
Maintenance & After-Sales9.1
Value for Money9.1
Our Verdict
The Pureit Eco Elite 2X earns the top spot with a 10-litre tank, fast 24 L/hr flow, and 8-stage RO+UV+Alkaline purification backed by a 2-year filter warranty. It's the most complete package here, though its relatively short review history means it edges ahead on specs rather than a long-proven track record.
2-year filter life + 2-year unconditional warranty
Service
No service required for 2 years
Installation
Wall mount
Pros
+ 10-stage RO+UV+Copper+Alkaline+Mineraliser — the most comprehensive purification chain here
+ No service needed for 2 years plus a 2-year unconditional warranty (replacement, not just repair)
+ Excellent track record: 4.5 stars across 6,000+ ratings
+ Copper and alkaline fortification with generally praised water taste
+ 8L tank suits most families
Cons
− After-sales relies on video-call/app support — getting an on-site technician for a genuine fault can be slow
− Occasional reports of leakage or dead-on-arrival units needing replacement
− Over-purifies very low-TDS input water (output can read 2-5 ppm) in some areas
− Premium pricing
Rating Breakdown
Purification & Water Quality9.4
Storage & Purification Rate9.1
Build Quality & Durability9.0
Maintenance & After-Sales9.1
Value for Money9.1
Our Verdict
The Native M1 is the strongest proven performer in the field — a 10-stage copper-alkaline RO with genuinely hands-off ownership and an unconditional 2-year warranty validated by thousands of reviews. Just be aware that when something does go wrong, support is remote-first and can be slow to escalate.
+ Hides entirely under the sink — only a sleek gooseneck faucet is visible, freeing up counter/wall space
+ 100% RO with copper-fortified mineraliser delivers consistently well-rated water taste
+ Cleanest review record in the field — no recurring quality complaints
+ Solid build quality praised by long-term users
+ AO Smith's RO membranes are well regarded for high-TDS water
Cons
− Smallest-but-one storage at 6L with a slower 15 L/hr rate — less suited to large families
− Only a 1-year comprehensive warranty (shorter than Native/Atomberg's 2 years)
− Limited review base (~22) so long-term data is thin
− Requires under-sink space and professional plumbing for installation
Rating Breakdown
Purification & Water Quality9.4
Storage & Purification Rate8.6
Build Quality & Durability9.3
Maintenance & After-Sales8.8
Value for Money8.7
Our Verdict
The AO Smith X5+Neo is the pick for modular kitchens that want the purifier completely out of sight. Water quality and build are excellent with the cleanest review record here, though you trade off a modest 6L tank and a shorter 1-year warranty for that premium under-sink form factor.
+ Outstanding value — full RO+UV+Mineral purification under ₹8,500
+ WQA-certified purification performance
+ Handles high-TDS borewell/tanker water (up to 2000 ppm)
+ Up to 45% water savings is strong for the price
+ Free handheld TDS meter included
+ Good water taste reported by most buyers
Cons
− Pump can be audibly noisy when running
− Basic unit — no tank-level or on/off display
− External pre-filter is sold separately (~₹1,000) where input water is hard
− Installation can be delayed in some areas
Rating Breakdown
Purification & Water Quality9.1
Storage & Purification Rate9.0
Build Quality & Durability8.9
Maintenance & After-Sales8.6
Value for Money9.3
Our Verdict
The Pureit Wave Plus is the smart-money buy in this roundup — WQA-certified RO+UV+Mineral filtration with 45% water savings for under ₹8,500. You'll deal with a noisy pump and some missing frills, but the core purification punches well above its price.
+ 9-stage RO+UV+UF+MC — one of the most thorough purification chains here
+ Class-leading 60% higher water recovery saves water and money
+ 2-year filter life lowers running cost
+ Mega Sediment pre-filter handles muddy borewell/tanker input
+ Huge proven base: 7,000+ ratings
+ Aquaguard (Eureka Forbes) has wide service reach
Cons
− Smaller 6.2L tank than rivals at this price
− Some users report output TDS not dropping enough; no dedicated TDS controller
− Eureka Forbes after-sales draws frequent complaints about delays
− Occasional leakage reported after several months of use
Rating Breakdown
Purification & Water Quality9.1
Storage & Purification Rate9.0
Build Quality & Durability8.8
Maintenance & After-Sales8.7
Value for Money9.1
Our Verdict
The Aquaguard Delight Aquasaver brings comprehensive 9-stage purification with the best water recovery in the field and a 2-year filter life, backed by over 7,000 reviews. The recurring knock is Eureka Forbes' inconsistent after-sales service, which has been the brand's Achilles heel for years.
2-year filter life + 2-year unconditional warranty
Service
No service required for 2 years
Installation
Wall mount or counter-top
Included
Free pre-filter
Pros
+ 8-stage RO+UV+Copper+Mineral+Alkaline purification at a mid-range price
+ India's only 2-year unconditional warranty — faulty units get replaced, not just repaired
+ No service required for 2 years
+ Free pre-filter included for hard input water
+ Strong 4.5-star rating
+ Compact footprint, flexible wall or counter mounting
Cons
− Small 5L tank — the least storage in the field, a constraint for large families
− 'No-service' model means slow help when a unit is actually faulty
− Pressure Enhancer Kit charged ~₹1,000 extra where input pressure is low
− A few reports of leakage right after installation
Rating Breakdown
Purification & Water Quality9.3
Storage & Purification Rate8.4
Build Quality & Durability8.8
Maintenance & After-Sales9.0
Value for Money8.9
Our Verdict
A compact, well-rated copper-alkaline RO whose standout feature is the 2-year unconditional warranty and truly hands-off ownership. The 5L tank is the smallest in the field and remote-first support is the compromise, but for couples or small families who prioritise peace of mind, it's hard to beat.
+ India's first adaptive purifier — TDS-based filtration adjusts to your input water
+ Fastest purification rate here at 25 L/hr
+ IoT app with real-time filter-health monitoring
+ No service cost / no AMC for 2 years, 2-year warranty
+ 8L tank with mineral-retaining alkaliser
+ Modern, well-rated brand from the fan/appliance maker Atomberg
Cons
− On-board TDS display read inaccurately versus a manual meter for several users
− A few reports of white particles/dust appearing in water and early device errors
− Service responsiveness can be slow when issues arise
− Premium price for a 1500-ppm-rated unit (lower TDS ceiling than most rivals)
Rating Breakdown
Purification & Water Quality9.0
Storage & Purification Rate9.5
Build Quality & Durability8.8
Maintenance & After-Sales9.0
Value for Money8.7
Our Verdict
The Atomberg Intellon is the most innovative purifier in this roundup — adaptive TDS-based filtration, the fastest flow rate, and genuine IoT monitoring from your phone. It's let down by questions over TDS-display accuracy and a lower 1500 ppm ceiling, so it's best for tech-forward buyers who don't mind a newer platform.
+ Comprehensive RO+UV+UF+Alkaline+Copper with a built-in TDS controller
+ UV LED in the storage tank keeps stored water safe
+ Auto-flush extends membrane life
+ Most-reviewed purifier in the field by far (15,000+ ratings)
+ 8L tank and 20 L/hr suit most households
+ KENT has one of India's largest service networks
Cons
− After-warranty filter/consumable replacement is expensive (reports of ~₹8k)
− After-sales service quality is inconsistent despite the large network
− Pre-filter sold separately (~₹1,190)
− Occasional shipping damage and UV-lamp failures reported
Rating Breakdown
Purification & Water Quality9.3
Storage & Purification Rate9.1
Build Quality & Durability9.0
Maintenance & After-Sales8.5
Value for Money8.8
Our Verdict
The KENT Supreme Plus is a do-everything purifier with RO+UV+UF+Alkaline+Copper, a TDS controller, and the most-proven track record here with 15,000+ reviews. The ownership cost — pricey consumables and variable service quality — is the thing to budget for beyond the sticker price.
+ Instant hot + ambient water on demand — unique in this list
+ Large 10L storage for a household's daily needs
+ 100% RO with copper, alkaline and Silver Shield tank protection
+ Premium build and consistently well-rated water taste
+ High-TDS capable (up to ~2000 ppm)
Cons
− Most expensive product here by a wide margin
− Hot-water dispensing is slow and tops out around 45 °C for some users
− After-sales service not available in all PIN codes — check before buying
− Reports of day-one leakage and AMC being pushed during warranty
Rating Breakdown
Purification & Water Quality9.4
Storage & Purification Rate9.3
Build Quality & Durability8.8
Maintenance & After-Sales8.4
Value for Money8.4
Our Verdict
Buy the AO Smith Z9 Pro Hot if instant hot purified water is worth a premium to you. Purification, capacity, and taste are all top-tier, but the steep price, modest hot-water performance for some users, and patchy regional service are the trade-offs to weigh.
+ KENT's flagship RO+UV+UF with a genuine TDS controller
+ UV LED storage tank keeps purified water safe
+ 8L tank and 20 L/hr flow for everyday family use
+ Strong 4.4 rating across nearly 7,000 reviews
+ India's largest service network on paper
+ Flexible wall or free-standing installation
Cons
− Filter replacement after the warranty is expensive (reports of ~₹8k = most of the unit's price)
− Technician visit charges and inconsistent service experiences
− Pre-filter not included (~₹1,190 extra)
− Occasional tank cracking / leakage reported
Rating Breakdown
Purification & Water Quality9.1
Storage & Purification Rate9.1
Build Quality & Durability8.8
Maintenance & After-Sales8.4
Value for Money8.8
Our Verdict
A long-standing, well-rated RO+UV+UF with a TDS controller and a big review base that does the core purification job well. The recurring frustration is expensive consumables and uneven after-sales service — budget for ongoing costs beyond the initial purchase.
+ 7-stage RO+UV+MF with genuine copper-charging technology
+ 8L tank and a quick 24 L/hr purification rate
+ High-TDS capable for borewell/tanker water
+ Established model with 4,000+ reviews
+ Counter-top or wall-mount flexibility
Cons
− Expensive for an RO+UV+MF spec at nearly ₹21,000
− High running cost — one owner cited ~₹16k a year in service/consumables
− Reports of motor failure within a year on some units
− No water dispensing when power is out (no gravity/manual tap)
Rating Breakdown
Purification & Water Quality9.1
Storage & Purification Rate9.3
Build Quality & Durability8.7
Maintenance & After-Sales8.2
Value for Money8.2
Our Verdict
The Pureit Copper+ delivers proper copper-infused RO water with a fast 24 L/hr flow and a big tank. It's hard to recommend over cheaper rivals given its premium price and the recurring complaints about running costs and reliability, but if copper fortification is a must-have, this is the one that does it properly.
− No dedicated TDS controller despite listing implying one
− After-sales service draws frequent complaints
− Some reliability reports — units failing within months on a minority of orders
− Membrane replacement can be costly (~₹5,200) with TDS still not dropping for some
− Can be noisy in operation
Rating Breakdown
Purification & Water Quality8.9
Storage & Purification Rate8.8
Build Quality & Durability8.5
Maintenance & After-Sales8.3
Value for Money9.1
Our Verdict
A genuinely cheap RO+UV+UF that works well for most buyers and has thousands of reviews to back it up. The risks are inconsistent service and a minority of early-failure reports, so it's a value pick for those on a tight budget rather than a fit-and-forget solution.
+ Strong value — 7-stage RO+UF with a mineral charger under ₹9,200
+ Up to 40% water recovery is good for the price
+ BIS-certified, with a 1-year unconditional warranty
+ Large proven base of nearly 5,000 ratings
+ High-TDS capable for borewell/tanker water
+ 20 L/hr flow and 7L tank for everyday use
Cons
− RO+UF only — no UV stage, so less reassurance against microbiological contamination
− Recurring water-leakage complaints, sometimes unresolved after multiple service visits
− After-sales service experience is inconsistent
− Filters need replacing roughly yearly (~₹4k) and an indicator light can malfunction
Rating Breakdown
Purification & Water Quality8.8
Storage & Purification Rate9.0
Build Quality & Durability8.5
Maintenance & After-Sales8.4
Value for Money9.1
Our Verdict
Good value with solid water recovery, BIS certification, and a reassuring unconditional warranty from a trusted Indian brand. The missing UV stage and recurring leakage reports are why it sits at the value end rather than higher up — consider adding a standalone UV if microbiological safety is a concern.
RO, UV, UF, MF — what the alphabet soup actually means
RO (Reverse Osmosis) forces water through a membrane to strip dissolved salts and heavy metals — essential for borewell/tanker water above ~300 ppm TDS. UV kills bacteria and viruses. UF (Ultrafiltration) removes suspended particles and cysts and works without electricity. MF is micro-filtration for finer sediment. For most Indian homes on borewell or mixed supply, look for RO+UV (or RO+UV+UF). If your municipal water is already low-TDS (<200 ppm), a UV/UF unit may be enough and an RO will needlessly waste water and strip minerals.
Check your input TDS before you buy
Total Dissolved Solids (TDS) decide whether you even need RO. Use a cheap handheld TDS meter (several purifiers here include one). Below ~200 ppm: UV/UF is sufficient. 200-2000 ppm: RO is the right call — every RO on this list handles up to ~2000 ppm. Above 2000 ppm: confirm the specific model is rated for it. Beware units quoting a very low max TDS (e.g. 100 ppm) but marketed for borewell water — they won't cope.
Don't over-purify: aim for 50-150 ppm output
RO can strip water down to near-zero TDS, which tastes flat and removes beneficial minerals. The best units add back minerals (copper/alkaline/mineraliser) or include a TDS controller so output settles around a healthy 50-150 ppm. Several owners in reviews complained of bitter, over-purified water reading 2-20 ppm — a sign the unit lacks adjustment for low-TDS input.
Tank size and purification rate vs your family
Storage matters most when supply or power is erratic. 5-6L suits 1-3 people; 7-8L suits a typical family of four; 10L is best for larger households or back-to-back usage. Pair it with purification rate (L/hr): 20 L/hr is standard, 24-25 L/hr refills the tank faster. An under-sink unit saves counter space but usually has a smaller tank.
The real cost is service and consumables, not the sticker price
This is where most RO ownership pain lives. Filters and RO membranes need replacing every 1-2 years; some brands charge ₹4,000-8,000 a cycle — a large fraction of the purchase price. Pre-filters and pressure kits are often sold separately (₹1,000-1,200). Factor in AMC cost and, crucially, local service quality: across reviews, delayed installation and unresolved complaints were the single most common grievance for every legacy brand.
Warranty and the 'no-service' model
Newer entrants (Native by Urban Company, Atomberg) offer 2-year filter life with 'no service for 2 years' and even unconditional replacement warranties — attractive if you hate AMC hassles. The flip side seen in reviews: when a unit is genuinely faulty, remote/app-first support can be slow to send a technician. Legacy brands (KENT, Aquaguard) have wider physical networks but charge more for consumables and get mixed service reviews.
Frequently Asked Questions
Do I really need an RO purifier, or will UV/UF do?
It depends on your water's TDS. If your input TDS is above ~200 ppm (typical of borewell or tanker water), you need RO to remove dissolved salts and heavy metals. If you're on low-TDS municipal water (<200 ppm), a UV/UF purifier is enough and an RO will waste water and strip minerals unnecessarily. Test with a TDS meter first.
What output TDS is ideal for drinking water?
Around 50-150 ppm is the sweet spot — safe, good-tasting and mineral-balanced. Water below ~30 ppm tastes flat and lacks beneficial minerals. Choose a purifier with a TDS controller or mineral/alkaline fortification so it doesn't over-purify, especially if your input water isn't very hard.
How much does it cost to maintain an RO purifier each year?
Budget realistically. Filter/membrane replacement typically runs every 1-2 years and can cost ₹2,500-8,000 depending on the brand and water hardness. Some premium units cited running costs as high as ₹16,000 a year in reviews. Models with a 2-year filter life (Aquaguard Aquasaver, Native, Atomberg, Pureit Eco Elite) lower this significantly.
What tank size should I get for my family?
5-6 litres is fine for 1-3 people, 7-8 litres suits a family of four, and 10 litres is best for larger families or where water/power supply is erratic. Also check the purification rate (L/hr) — 24-25 L/hr refills the tank faster than the standard 20 L/hr.
Why do so many RO reviews complain about service rather than the product?
Across every legacy brand in our research, the most common complaint wasn't purification quality — it was delayed installation, slow technician visits and expensive out-of-warranty consumables. The product usually works; the after-sales experience is the variable. This is why 'no-service-for-2-years' models and unconditional warranties are increasingly popular.
Is copper/alkaline water worth paying extra for?
Copper and alkaline fortification add minerals back after RO and can improve taste, which many buyers value. They're a nice-to-have rather than essential — the core safety job is done by RO+UV. Don't pay a large premium for copper alone if budget is tight; prioritise reliable RO+UV purification and good service first.
Wall-mount or under-sink — which is better?
Wall-mount/counter-top units are easier to install, service and monitor, and usually have larger tanks. Under-sink units (like the AO Smith X5+Neo) hide the machinery and free up space, showing only a faucet — great for modular kitchens, but they tend to have smaller tanks and need professional plumbing.
Does an RO purifier work during a power cut?
Most RO purifiers need electricity to run the pump, so they won't purify during an outage — though stored water in the tank remains available via the tap on most models. A few units only dispense electronically and give no water without power, which reviewers flagged as a drawback. If outages are common, keep the tank topped up or pick a model with a manual/gravity tap.