AO Smith Z9 Green RO
Hot water on tap, and the best water recovery in the category
- Three-temperature hot water on tap removes the need for a separate kettle
- Advanced Recovery Technology genuinely doubles water recovery versus conventional RO
By technology
A hot-water purifier replaces your kettle. Instead of boiling water and waiting, you press a button and get it at 45°C for a baby's formula, 80°C for green tea, or 100°C for coffee and instant noodles. It is one of the few appliance upgrades that genuinely changes a daily routine rather than just a spec sheet.
Two things to check before buying. First, the child lock — a tap dispensing water near boiling point at toddler height needs a proper mechanical or two-step lock, not a beep. Every model we recommend has one. Second, the power draw: heating models pull 200-350 W while working, versus 40 W for a standard purifier, which matters if you run on an inverter.
Note that hot and cold are usually separate propositions. Most 'hot' purifiers dispense hot and ambient water; genuine chilling requires a compressor and is more common in commercial water coolers, where Blue Star leads.
Hot water on tap, and the best water recovery in the category
Hot and ambient dispensing at a sane price
The default recommendation for Indian borewell water
Stainless-steel tank and self-sterilising UV care
Aquaguard's best-selling all-rounder, now with active copper
AO Smith engineering without the hot-water premium
Copper plus alkaline in Aquaguard's premium domestic unit
Counter-top KENT with a UV-sterilised tank
HUL's copper RO with an enforced filter-life cut-off
High-throughput KENT for large families and small offices
| # | Product | Price | Score | Max input TDS | Best for |
|---|---|---|---|---|---|
| 1 | 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. |
| 2 | Havells Aqua S | ₹21,490 | 8.5/10 | 2000 ppm | Buyers who want hot water on tap without paying premium-brand prices. |
| 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 | 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. |
| 9 | Pureit Copper+ RO | ₹15,999 | 8.4/10 | 2000 ppm | Safety-first households, and anyone who has previously forgotten filter changes. |
| 10 | KENT Prime TC | ₹15,490 | 8.3/10 | 2000 ppm | Large households and small office pantries that need volume more than features. |
Prices are indicative street prices, last verified 2026-08-01. Always confirm the current price on the marketplace before purchasing.
Free consultation · Pan-India
Tell us your city, your water source and your budget. For homes we will recommend the right technology — including telling you when a ₹3,000 purifier is genuinely enough. For offices, societies and factories, our team will size a system against your water report and send a specification-backed quotation.
Or email betterworkindia@gmail.com — attach a water analysis report and we can quote faster.
Homes
Right-sized recommendation for your TDS, not the most expensive unit
Offices & societies
25 LPH to 2,000+ LPH, sized on headcount and feed water
Industry
Pharma, food, textile, boiler feed — engineered to your specification
Service & AMC
Installation, repair and AMC with written response times