Best RO Water Purifier in India (2026): The True Cost of Every RO Model, Filter by Filter
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Every RO purifier has two running costs the sticker hides: the yearly filter bill, and the water it sends down the drain as reject. A purifier that costs ₹9,000 upfront but publishes no filter-cost data can quietly cost more over five years than an ₹18,000 unit with transparent, low-cost consumables. And every litre of RO-purified water sends multiple litres down the drain as reject water, unless the manufacturer has engineered around it.
This page is different because it tables both of those costs for all 11 RO purifiers currently sold in India that meet our shortlisting criteria. We haven’t lab-tested these units. Our verdicts come from spec-sheet analysis, manufacturer-published spare-price lists, and aggregated owner ratings with their review counts. Where a manufacturer doesn’t publish filter costs or water-recovery figures, we say so explicitly rather than guessing.
Of the 11 RO models we analysed, only 3 publish enough information to compute an annual running cost. Only 2 publish a water-recovery percentage or savings claim. The rest leave you to find out the hard way. That split is the most useful thing this page can tell you.
Quick verdicts
- Top pick: Atomberg Intellon, adaptive RO that switches to UF+UV when input TDS is safe, ₹0 filter cost for 2 years under warranty, then approximately ₹1,200 to ₹1,500/yr per the manufacturer’s published spare-price list.
- Best value under ₹10K: Livpure GLO PRO++ from ₹8,929 (MRP ₹15,500) or Aqua D Pure 4-in-1 Copper from ₹5,248 (MRP ₹24,999), both budget RO+UV combos with strong review volumes.
- Best premium: Native M2 Pro at ₹19,499 to ₹28,999 with touch dispensing and app-based TDS tracking, or Havells Gracia FAB at ₹21,989 to ₹32,549 with hot, warm, and ambient dispensing.
The running-cost and water-wastage table: every RO model
This is the table nobody else publishes. Prices are bands as of July 2026. Ratings are cited with their review counts from Amazon, July 2026. “Not published” means neither the manufacturer nor the marketplace listing provides the figure.
| Model | Price band (July 2026) | Rating (count) | Storage | Max input TDS | Water recovery / savings | Filter cost per year | Cost disclosure | Warranty |
|---|---|---|---|---|---|---|---|---|
 KENT Supreme Plus |
₹15,599 to ₹26,500 | 4.1 stars across 15,541 ratings | 8 L | Not published numerically (mfr: borewell/brackish/high-TDS) | Not published | Not published (intervals: sediment+carbon 6 mo, RO membrane 12 to 18 mo, UV lamp annually) | Partial (intervals only) | 1 yr + 3 yr extended free service |
 Livpure GLO PRO++ |
₹8,929 to ₹15,500 | 4.1 stars across 14,866 ratings | 7 L | 2,000 ppm (Amazon) | Not published | Not published | Not published | 1 yr |
 Aqua D Pure 4-in-1 Copper |
₹5,248 to ₹24,999 | 4.2 stars across 12,663 ratings | 12 L | Not published numerically | Not published | Service kit ₹1,500 sale (interval not published; ₹/yr not computable) | Partial (kit price, no interval) | Not published |
 Aquaguard Sure Delight NXT |
₹10,999 to ₹22,000 | 4.1 stars across 8,366 ratings | 6 L (mfr) | 0 to 2,000 mg/L | Up to 60% water savings (Aquasaver claim; recovery % not published) | Not published (cartridge up to 1 yr / 6,000 L) | Partial (interval only) | 1 yr |
 KENT Grand |
₹12,899 to ₹19,500 | 4.4 stars across 7,572 ratings | 8 L | 2,000 ppm (Amazon) | Not published | Not published (same intervals as Supreme Plus) | Partial (intervals only) | 1 yr |
 Native M1 |
₹15,999 to ₹20,999 | 4.4 stars across 6,790 ratings | 8 L | Not published | Not published | ₹2,500/yr equivalent (₹5,000 per 2 yr, per Amazon listing) | Full | 2 yr unconditional |
 Pureit Eco Water Saver |
₹11,999 to ₹24,850 | 4.2 stars across 2,797 ratings | 10 L | 2,000 ppm (Amazon) | Up to 60% water savings claim | Not published | Not published | 1 yr |
 Native M2 Pro |
₹19,499 to ₹28,999 | 4.4 stars across 1,820 ratings | 8 L | 300 ppm (Amazon, plausibility caveat) | Not published | ₹2,500/yr equivalent (₹5,000 per 2 yr, per Amazon listing) | Full | 2 yr |
 Havells Gracia FAB |
₹21,989 to ₹32,549 | 4.1 stars across 3,631 ratings | 6.8 L (mfr) | 2,000 ppm (Amazon) | Not published | Not published (AMC tiers from ₹2,781/yr) | Not published | 1 yr |
 AO Smith Z2+ Luxe |
₹21,599 to ₹27,490 | 4.1 stars across 1,527 ratings | 5 L | 2,000 ppm (Amazon) | Up to 30% recovery (mfr spec table) | Not published | Not published | 1 yr incl. membrane and filters |
| Atomberg Intellon |
₹17,989 to ₹25,999 | 4.1 stars across 1,597 ratings | 8 L | 1,500 ppm | Adaptive: switches to UF+UV (non-RO) when input TDS is safe; no % published | ₹0 first 2 yr (warranty), then ~₹1,200/yr (municipal) to ~₹1,500/yr (borewell/tanker), per mfr | Full | 2 yr all-inclusive |
Running-cost disclosure tally: Of 11 RO models, 3 publish a computable annual filter cost (Full), 4 publish intervals or a kit price but not enough to compute ₹/yr (Partial), and 4 publish nothing (Not published).
Water-recovery disclosure tally: Of 11 RO models, 3 publish a recovery percentage or savings claim (AO Smith at 30% recovery, Aquaguard and Pureit at “up to 60% savings”), and 1 (Atomberg) publishes an adaptive-mode design that avoids RO when TDS is safe. The remaining 7 publish no water-recovery or savings figure.
How we research
We pull specs from two sources per model where available: the Amazon listing and the manufacturer’s official product page. Where a manufacturer’s site is not crawlable (Urban Company’s Native M1 and M2 Pro, Pureit’s React-based site), we attribute the data as single-source from Amazon. We record discrepancies and default to the manufacturer’s value where one exists. We do not conduct hands-on testing. Our owner-sentiment proxy is the Amazon rating and review count, cited with the date of retrieval. Full methodology: how we research.
For this page, the primary research contribution is the running-cost and water-wastage table above. We collected filter-cost data from manufacturer spare-price lists, Amazon listing fields, and service-kit product pages. Where a figure does not exist in either source, we mark it “Not published” rather than estimating.
The 11 RO models, reviewed
KENT Supreme Plus (Alkaline+Copper)
Spec summary: RO+UV+UF+Alkaline+Copper+TDS Control with UV LED in the storage tank, 8 L storage, 20 L/hr flow rate, auto-flush. KENT describes this model as designed for borewell, brackish, and high-TDS water without publishing a numeric max-TDS figure. The Amazon TDS field showing “90 ppm” was rejected as data-entry junk. Filter replacement intervals are published by KENT: sediment pre-filter and carbon block every 6 months, RO membrane every 12 to 18 months, UV lamp annually. No filter cost in rupees is published.
Rating: 4.1 stars across 15,541 ratings, July 2026.
Who it’s for: Households on borewell or brackish water supply who want alkaline and copper mineralisation in a single unit, and who value KENT’s free 3-year extended service plan.
Livpure GLO PRO++
Spec summary: 7-stage RO+UV+UF with sediment filter, pre-activated carbon absorber, anti-scalant cartridge, RO membrane, UV disinfection, ultrafiltration, and silver-impregnated post carbon. 7 L storage. Amazon lists max input TDS at 2,000 ppm; Livpure’s page says borewell/tanker/municipal suitable without a numeric figure. No filter cost, replacement interval, or water-recovery figure is published by either source. Free standard installation and free on-demand service under warranty.
Rating: 4.1 stars across 14,866 ratings, July 2026.
Who it’s for: Budget-conscious buyers who want a full RO+UV+UF chain under ₹10,000 and are comfortable with unspecified running costs.
Aqua D Pure 4-in-1 Copper RO
Spec summary: 10-stage RO+UV+UF+TDS adjuster with 4-in-1 copper technology. 12 L storage, the largest tank in this shortlist. Both sources say “suitable for all types of water supply” without a numeric TDS limit. The manufacturer sells a complete RO service kit with the 4-in-1 copper cartridge at ₹1,500 sale price (₹2,999 MRP), but the replacement interval is not published, so an annual cost cannot be computed. Installation is paid: up to ₹500 to the technician.
Rating: 4.2 stars across 12,663 ratings, July 2026.
Who it’s for: Buyers who want the most storage capacity and copper infusion at the lowest upfront price, and who don’t mind a marketplace brand with limited spec depth.
Aquaguard Sure Delight NXT RO+UV+UF Aquasaver
Spec summary: 9-stage RO+UV+UF+MC with i-Filter, Chemi-Block, RO cartridge, UV e-boiling (4W lamp rated for 5,000 hrs), UF filter, and Mineral Charge cartridge. 6 L storage (manufacturer spec table; Amazon lists 6.2 L, manufacturer value wins). Max input TDS 0 to 2,000 mg/L with hardness up to 600 mg/L. The Aquasaver feature claims up to 60% water savings versus regular RO, though a recovery percentage is not published. Cartridge life is up to 1 year or 6,000 L under standard test conditions. No filter cost in rupees is published. Free service plan worth ₹2,000 includes installation, one maintenance visit, and unlimited repair visits.
Rating: 4.1 stars across 8,366 ratings, July 2026.
Who it’s for: Buyers who want a mid-range RO from an established brand with a water-saving feature and a structured free service plan.
KENT Grand
Spec summary: RO+UF+TDS Control with UV LED in the storage tank (KENT’s Mineral RO system), 20 L/hr flow rate, 8 L storage. Amazon lists max input TDS at 2,000 ppm; KENT says brackish/borewell/tap/municipal suitable without a numeric figure. Filter replacement intervals match the Supreme Plus: sediment pre-filter and carbon block every 6 months, RO membrane every 12 to 18 months, UV lamp annually. No filter cost in rupees is published. Free installation with a 1-year free service plan including unlimited repair visits.
Rating: 4.4 stars across 7,572 ratings, July 2026. The joint-highest rating in this shortlist alongside the Native M1.
Who it’s for: Buyers who want KENT’s UV-in-tank purification at a mid-range price with the strongest owner rating in the shortlist.
Native M1
Spec summary: 10-stage RO+UV+Copper+Alkaline+Mineraliser with no MTDS mixing and no RO bypass, per the Amazon listing (Urban Company doesn’t publish specs on a crawlable site). 8 L storage. No max input TDS is published. The listing states a 2-year service-free period with a multi-micron pre-filter and self-cleaning, followed by a filter refresh at ₹5,000 per 2 years covering all filters, servicing, and warranty renewal, equating to ₹2,500/yr. 2-year unconditional warranty. Free installation by Urban Company; pressure equipment if needed costs ₹250 to ₹950. The box includes a TDS meter.
Rating: 4.4 stars across 6,790 ratings, July 2026.
Who it’s for: Buyers who want a fully bundled service model (no AMC calls for 2 years) with alkaline, copper, and mineraliser stages, and who are comfortable buying from a single-source listing.
Pureit Eco Water Saver
Spec summary: 7-stage RO+UV+MF, 10 L storage, max input TDS 2,000 ppm (Amazon). Claims up to 60% water savings. The Amazon filter-life field showing “15 Days” was rejected as implausible data-entry junk; the manufacturer’s page is a client-side React shell with no server-rendered specs to scrape. No filter cost, replacement interval, or installation/AMC detail is published. 1-year manufacturer warranty.
Rating: 4.2 stars across 2,797 ratings, July 2026.
Who it’s for: Buyers who want a large storage tank and a water-saving claim from HUL’s Pureit brand, accepting that running-cost data is unavailable.
Native M2 Pro
Spec summary: 10-stage RO+UV+Copper+Alkaline+Mineraliser with preset touch dispensing and real-time TDS and filter tracking via the Urban Company app, per the Amazon listing. 8 L storage. The Amazon field lists 300 ppm max input TDS, flagged with a plausibility caveat since the manufacturer page is blocked. Same service model as the M1: 2 years with no service, then ₹5,000 per 2 years (₹2,500/yr equivalent). 2-year warranty. Free installation by Urban Company.
Rating: 4.4 stars across 1,820 ratings, July 2026.
Who it’s for: Buyers who want app-connected tracking, touch dispensing, and the same bundled service model as the M1 in a premium chassis.
Havells Gracia FAB Alkaline
Spec summary: 9-stage RO+UV+Alkaline with Cu+Zn+minerals, offering hot, warm, and ambient dispensing with a touch display. 6.8 L stainless steel tank (manufacturer spec; Amazon title says 6.5 L, within the manufacturer’s stated tolerance of plus or minus 0.3 L). Amazon lists max input TDS at 2,000 ppm; Havells publishes no numeric input-TDS limit. No filter cost, replacement interval, or water-recovery figure is published. 1-year manufacturer warranty with Havells’ 360 service cover. Extended warranty and AMC plans are sold separately starting at ₹2,781 for 1 year, with ₹5,000 and ₹7,500 tiers also available.
Rating: 4.1 stars across 3,631 ratings, July 2026.
Who it’s for: Buyers who want hot and warm water dispensing from a premium brand-name unit and are willing to pay for AMC separately.
AO Smith Z2+ Luxe
Spec summary: The Amazon listing (Z2+ Luxe) describes a 7-stage system; the manufacturer’s page covers the Z2+ base model and describes 6 stages: pre-filter, sediment, pre-carbon, side-stream RO, SCM-TECH (silver activated post carbon), and MIN-TECH. Treat the 7th stage as Luxe-specific and Amazon-only. 5 L storage, 15 L/hr flow rate, TDS reduction of at least 95%. Amazon lists max input TDS at 2,000 ppm; the manufacturer publishes no numeric max. The manufacturer’s spec table publishes up to 30% recovery, consistent with Amazon’s “2x water savings” claim (typical RO recovers approximately 15%). No filter cost in rupees is published. The manufacturer’s Advance Alert Technology signals replacement in advance. 1-year comprehensive warranty including the RO membrane and filters.
Rating: 4.1 stars across 1,527 ratings, July 2026.
Who it’s for: Buyers who want the best published water-recovery figure in this shortlist (30%) and a warranty that covers consumables, accepting the under-sink form factor and 5 L storage.
Atomberg Intellon (Adaptive)
Spec summary: 7-stage adaptive RO+UF+UV+Alkaliser+Taste Enhancer with 4 modes: Adaptive Flow, RO+UV, UF+UV, and TasteTune. The unit senses input TDS and uses RO only when the water demands it, switching to UF+UV (non-RO) mode when input TDS is within safe limits. This is the only model in the shortlist that avoids RO reject water by design when it isn’t needed. 8 L storage. Max input TDS 1,500 ppm; all filters tested to 12,000 L with water up to 1,500 ppm TDS, 200 ppm hardness, and 5 NTU. IoT connectivity with an LED ring TDS display. The RO membrane is rated up to approximately 20,000 L (roughly 3+ years), other filters up to approximately 15,000 L (roughly 2.5 years). 2-year no-questions-asked warranty covering all filters, membranes, and electrical parts at zero cost. No AMC required.
Running cost (per the manufacturer’s published spare-price list): ₹0 for the first 2 years under warranty. Post-warranty, approximately ₹1,200/yr for municipal water below 300 TDS, or approximately ₹1,500/yr for borewell/tanker water above 300 TDS. The manufacturer publishes itemized spare prices: pre-filter ₹200, inline sediment ₹430, pre-carbon ₹490, membrane protector ₹250, RO membrane ₹1,100, UF membrane ₹700, and alkaliser plus taste enhancer ₹350. Pay-per-part, no AMC contract.
Rating: 4.1 stars across 1,597 ratings, July 2026.
Who it’s for: Buyers who want the most transparent running cost in the shortlist, the only adaptive water-saving design, and a 2-year warranty that covers everything including consumables. This is our top pick for the combination of water efficiency, cost transparency, and warranty coverage.
Do you actually need RO?
RO makes sense when your input water has TDS above approximately 200 ppm, or when your supply is borewell, tanker, or brackish water. If your municipal supply has low TDS, RO is unnecessary: it wastes water, strips minerals, and adds running cost you don’t need. UV or UF purifiers handle microbiological safety without a reject stream and without membrane replacement costs.
Check your municipal water quality report or test your water with a TDS meter before buying RO. If your TDS is well below 200 ppm and your supply is municipal piped water, these non-RO alternatives from our database do the job for less money and zero water wastage:
| Model | Type | Price band (July 2026) | Rating (count) | Storage | Water wasted |
|---|---|---|---|---|---|
 Faber CUV 8000 |
UV+UF+Copper | ₹6,790 to ₹14,990 | 4.2 stars across 613 ratings | 7 L | None (no RO reject) |
 Aquaguard Sure Mist UV+MC |
UV+MC | ₹7,498 to ₹14,000 | 4.2 stars across 452 ratings | No tank (mfr) | None (no RO reject) |
 KENT Smart Plus UV |
UV+UF+Alkaline+Copper | ₹7,999 to ₹9,999 | 4.4 stars across 183 ratings | Storage-less online | None (no RO reject) |
 KENT Gold Optima |
Gravity UF (non-electric) | ₹2,140 to ₹3,499 | 3.6 stars across 15,855 ratings | 10 L (5+5) | None (no RO reject) |
Note: the KENT Gold Optima’s Amazon TDS field claims 2,000 ppm, but this contradicts the technology. UF does not reduce TDS; the manufacturer confirms it is for low-TDS tap/municipal water only. The manufacturer’s guidance wins.
For our full coverage of every purifier type including UV and gravity, see our full best water purifier guide.
How to choose an RO water purifier
By family size and storage:
| Household | Suggested storage | Models from this shortlist |
|---|---|---|
| 2 to 3 members | 5 to 7 L | AO Smith Z2+ (5 L, under-sink unit), Aquaguard Sure Delight NXT (6 L), Livpure GLO PRO++ (7 L) |
| 4 to 5 members | 8 L | KENT Supreme Plus, KENT Grand, Native M1, Native M2 Pro, Atomberg Intellon (all 8 L) |
| 6+ members | 10 to 12 L | Pureit Eco (10 L), Aqua D Pure (12 L) |
By input water TDS:
- Borewell or brackish water with high TDS: KENT Supreme Plus is designed for borewell/brackish/high-TDS per the manufacturer. Any model rated to 2,000 ppm input TDS also applies.
- Tanker water: Any RO model in this shortlist handles tanker supply. Models with published TDS limits of 2,000 ppm (Livpure, Aquaguard, KENT Grand, Pureit, Havells) or 1,500 ppm (Atomberg) are suitable.
- Municipal water with variable TDS: Atomberg Intellon’s adaptive mode is designed for this scenario, switching to UF+UV when TDS is safe.
By running-cost transparency:
If knowing your annual filter cost matters to you, your shortlist narrows to three models that publish a computable figure: Atomberg Intellon (₹0 for 2 years, then approximately ₹1,200 to ₹1,500/yr), Native M1 (₹2,500/yr equivalent), and Native M2 Pro (₹2,500/yr equivalent). Everyone else either publishes intervals without rupee costs or publishes nothing at all.
By water efficiency:
If minimising reject water matters, your options are: AO Smith Z2+ Luxe (30% recovery, the only published recovery percentage), Aquaguard Sure Delight NXT and Pureit Eco Water Saver (both claim up to 60% water savings, though neither publishes a recovery percentage), and Atomberg Intellon (adaptive mode that bypasses RO entirely when TDS is safe, eliminating reject water in that mode).
For budget-focused shopping including RO models under ₹10,000 and cheaper UV alternatives, see the best water purifiers under ₹10,000.
Kent vs Aquaguard: a column-by-column comparison
This is a frequently asked question, and the honest answer is that it depends on which models you compare. Here is the data from our spec database for the two most directly comparable KENT and Aquaguard RO models:
| Column | KENT Grand | Aquaguard Sure Delight NXT |
|---|---|---|
| Price band | ₹12,899 to ₹19,500 | ₹10,999 to ₹22,000 |
| Rating | 4.4 stars across 7,572 ratings | 4.1 stars across 8,366 ratings |
| Storage | 8 L | 6 L (mfr) |
| Max input TDS | 2,000 ppm (Amazon) | 0 to 2,000 mg/L (mfr) |
| Water savings | Not published | Up to 60% (Aquasaver claim) |
| Filter intervals | Sediment+carbon 6 mo, RO membrane 12 to 18 mo, UV lamp annually | Cartridge up to 1 yr / 6,000 L |
| Filter cost/yr | Not published | Not published |
| Warranty | 1 yr + free service plan | 1 yr + free service plan worth ₹2,000 |
| Purification tech | RO+UF+TDS Control + UV LED in tank | RO+UV+UF+MC, UV e-boiling |
KENT Grand has the higher rating and larger storage. Aquaguard has the water-savings claim and a published cartridge-life benchmark. Neither publishes a filter cost in rupees. This is not a brand-level verdict; it is a model-level comparison from the columns we have.
FAQs
Which brand is best for RO water?
No single brand wins every column. By rating, KENT Grand and Native M1 and M2 Pro share the highest rating at 4.4 stars. By running-cost transparency, Atomberg is the only brand publishing a full post-warranty spare-price list. By water recovery, AO Smith publishes 30% and Aquaguard claims up to 60% savings. The “best” brand depends on which column matters most to your household.
Which RO system is best for home?
For a typical Indian home on borewell or tanker supply, the best RO water purifier is one that matches your input TDS, storage needs, and running-cost tolerance. Our top pick is the Atomberg Intellon for its adaptive RO mode, 2-year all-inclusive warranty, and published spare prices. For budget buyers, the Livpure GLO PRO++ or Aqua D Pure 4-in-1 Copper offer RO+UV under ₹10,000.
Which RO water purifier is best for health?
All 11 RO models in this shortlist include UV or UF disinfection alongside RO. Models with alkaline, copper, or mineraliser stages (KENT Supreme Plus, Native M1, Native M2 Pro, Havells Gracia FAB, Atomberg Intellon) add back minerals that plain RO removes. Whether this is “best for health” is a matter of your water source and dietary context, not a spec-sheet verdict.
Which is the No. 1 water purifier?
By review volume, the KENT Supreme Plus has the most ratings (15,541) among RO models in this shortlist. By rating score, the KENT Grand, Native M1, and Native M2 Pro share the highest at 4.4 stars. There is no single “No. 1” across all columns; the right pick depends on your water source, budget, and running-cost priorities.
Is Aquaguard or Kent better?
See our column-by-column comparison above. KENT Grand has a higher rating (4.4 vs 4.1) and larger storage (8 L vs 6 L). Aquaguard Sure Delight NXT has a water-savings claim (up to 60%) and a published cartridge-life benchmark (1 year or 6,000 L). Neither publishes a filter cost in rupees. The answer depends on which columns matter to you.
Which brand RO is best for home?
For homes on borewell or high-TDS supply, KENT Supreme Plus is designed for that scenario per the manufacturer. For homes on municipal supply with variable TDS, Atomberg Intellon’s adaptive mode is engineered for it. For homes on a budget, Livpure GLO PRO++ and Aqua D Pure offer RO+UV under ₹10,000. The best brand for your home is the one whose published specs match your water conditions and cost tolerance.
Conclusion
The best RO water purifier for most Indian homes in 2026 is the Atomberg Intellon for its adaptive water-saving design, transparent running cost (₹0 for 2 years, then approximately ₹1,200 to ₹1,500/yr), and 2-year warranty covering all consumables. For budget buyers, the Livpure GLO PRO++ from ₹8,929 (MRP ₹15,500) and the Aqua D Pure 4-in-1 Copper from ₹5,248 (MRP ₹24,999) deliver RO+UV purification under ₹10,000. For premium features, the Native M2 Pro offers app-based tracking and touch dispensing, while the Havells Gracia FAB adds hot and warm dispensing. For high-TDS borewell water, the KENT Supreme Plus is the manufacturer’s designated borewell model. For water efficiency, the AO Smith Z2+ Luxe publishes the only recovery percentage (30%) in this shortlist.
The single most important thing this page can tell you: of 11 RO models sold in India, 4 publish no filter-cost data at all, and 7 publish no water-recovery figure. Before you buy, check whether your shortlisted model tells you what it will cost to run. If it doesn’t, that silence is information.
Related pages:
– our full best water purifier guide
– the best water purifiers under ₹10,000
– how we research
