AO Smith Z9 Pro RO Water Purifier (Ambient & Instant Hot)
Best for: Buyers wanting instant hot water from the purifier
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Researched by Khushal Thakkar · Founder & Lead Reviewer
Tracking 328 products across 13 categories · Data from Amazon, Flipkart & brand websites · Last updated 2026-10-02
Our Verdict
Bottom line: An under-sink AO Smith RO purifier that dispenses instant hot as well as ambient water, with copper and alkaline stages and 10L storage, at about ₹25,200.
Pros
- Instant hot and ambient water
- 10L storage
- 100+ bought on Amazon in the past month (late September 2026)
- 100% of water passes through RO
Cons
- About ₹25,200
- Only 536 ratings
A good fit for
- Modular kitchens
- Hot water for tea, formula and cooking
Skip it if you want
- Tight budgets
How it compares
Next to the closest alternatives we list. This product's price is today's; the others are from our latest price check.
| Product | This productAO Smith Z9 Pro RO Water Purifier (Ambient & Instant Hot) |  Havells Gracia FAB Alkaline RO+UV Water Purifier (Hot, Warm & Ambient) |  Native M3 Pro Water Purifier by Urban Company (Stainless Steel Tank, 3-Year Warranty) |  Aquaguard Enrich Ritz Pro RO+UV+Copper+Alkaline Water Purifier (4-Year Warranty) |
|---|---|---|---|---|
| Price | ₹21,990 | ₹19,807Lowest | ₹24,999 | ₹19,999 |
| Kitchen Score | 88/100 | 84/100 | 90/100Highest | 88/100 |
| Amazon rating | ★ 4.2 (536) | ★ 4.0 (3,566) | ★ 4.2 (193) | ★ 4.1 (7,797) |
| Type | RO water purifier with hot water | RO water purifier with hot water | RO water purifier | RO water purifier |
| Purification | 100% RO + silver-charged membrane + copper + alkaline mineraliser | RO + UV + alkaline + copper + zinc + minerals | RO + UV + 100% mineralisation | RO + UV + copper + alkaline |
| Stages | 8 stages | 9 stages | 10 stages | — |
| Capacity | 10 L | 6.5 L (stainless steel) | 6 L (stainless steel) | 5 L |
| Suitable For | Borewell, tanker and municipal water | Borewell, tanker and municipal water | Borewell, tanker and municipal water | Borewell, tanker and municipal water |
| Installation | Under-sink | Countertop | — | Countertop |
| Special Features | Instant hot and ambient water; patented side-stream RO membrane | Hot, warm and ambient water with touch dispensing and child lock; tank sanitisation | Touch dispensing with presets, dot-matrix display, built-in power backup, app tracking | App with TDS in/out, 21-point health check, hydration tracking; auto flush and anti-scale filter |
| Warranty | Not stated | Not stated | 3-year unconditional (filters, membranes and electricals) | 4-year unconditional (filters, spares and service) |
| Actions |
Swipe the table sideways to see all 4.
Expert Analysis
Design & Build
10 L storage, under-sink.
Performance
100% RO + silver-charged membrane + copper + alkaline mineraliser, 8 stages.
Indian Kitchen Fit
Suitable for: borewell, tanker and municipal water.
Value for Money
At about ₹25,200 it costs about ₹3,200 more than the Havells Gracia FAB, the other hot-water purifier we list.
Indian Kitchen Score™
Our research-based judgment of how well this suits an Indian home, across five factors. It isn't a lab test.
How we scoreFull Specifications
| Type | RO water purifier with hot water |
|---|---|
| Purification | 100% RO + silver-charged membrane + copper + alkaline mineraliser |
| Stages | 8 stages |
| Capacity | 10 L |
| Suitable For | Borewell, tanker and municipal water |
| Installation | Under-sink |
| Special Features | Instant hot and ambient water; patented side-stream RO membrane |
| Model | IGR010082OZBHC5 |
Care & Maintenance
Replace filters when the indicator or brand schedule says so
Clean the storage tank during each service
Fit a pre-filter if your water carries a lot of sediment
Frequently Asked Questions
It's ₹21,990 on Amazon. The MRP is ₹32,990, so that's 33% off. On Flipkart it was ₹21,990 when we last checked (13 Oct); Flipkart prices change often, so compare both before buying.
AO Smith scores 86/100 for After-Sales Service in our Indian Kitchen Score™: our judgment of how established its service network and warranty are in India.
Type: RO water purifier with hot water. Purification: 100% RO + silver-charged membrane + copper + alkaline mineraliser. Stages: 8 stages. Capacity: 10 L.