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 budget
Above ₹25,000, purification performance largely plateaus — a ₹16,000 KENT and a ₹34,000 AO Smith both reduce TDS effectively. What you are actually buying is one of four specific things, and the premium is only justified if you need at least one of them.
Hot water on tap, which genuinely changes your daily routine. A stainless-steel tank with automatic UV sterilisation, which is a real hygiene upgrade in humid cities. A higher input-TDS rating — 3,000 ppm rather than 2,000 — which matters in Jodhpur, Bikaner, Agra and coastal Tamil Nadu. Or materially better water recovery, which shows up on your tanker bill.
If none of those describe you, buy a ₹16,000 purifier and put the difference somewhere it does more good. That is not a fashionable thing for a review site to say, but it is true.
Hot water on tap, and the best water recovery in the category
Stainless-steel tank and self-sterilising UV care
AO Smith engineering without the hot-water premium
Copper plus alkaline in Aquaguard's premium domestic unit
Hidden under the counter, copper-enriched at the tap
RO with a genuine alkaline pH stage
| # | 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 | 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. |
| 3 | 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. |
| 4 | Aquaguard Aura | ₹25,490 | 8.5/10 | 2000 ppm | Premium buyers who want copper and alkaline options in one well-built unit. |
| 5 | KENT Supreme Copper (Under-Sink) | ₹25,990 | 8.2/10 | 2000 ppm | Modular kitchens where the purifier must be invisible. |
| 6 | KENT Supreme Alkaline | ₹24,490 | 8.1/10 | 2000 ppm | Buyers who specifically want alkaline water and are choosing it with clear eyes. |
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