Choose the Best Water Purifier: RO, UV, or UF (October 2026)
Aquaguard Delight NXT Lite RO + MC 6.2 L Water Purifier Black
Water purifiers are essential for clean drinking water. This guide explains RO, UV, and UF technologies. RO removes dissolved impurities and is good for high TDS water. UV uses ultraviolet light to kill germs. UF filters out suspended particles and bacteria. Many purifiers combine these for complete purification. Choose based on your water source and needs.
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Who needs one
Terms explained
- RO
Reverse Osmosis removes dissolved solids.
- UV
Ultraviolet light kills germs.
- UF
Ultrafiltration removes suspended particles.
- TDS
Total Dissolved Solids in water.
What to look for
Purification method (RO, UV, UF).
Storage tank size in litres.
Max TDS level the purifier can handle.
Number of purification steps.
How much to spend
- Under ₹8,000 Basic RO+Minerals purifiers are available.
- ₹8,000 – ₹15,000 Get RO+UV+UF with more features.
- Above ₹15,000 Advanced models with extra features.
Running costs
| Filter | Needs changing |
| UV Lamp | Replace yearly |
| Service | Regular checks |
| Power | Uses electricity |
|
Value
Aquaguard RO
|
Popular
Livpure RO+UV
|
Premium
Native M1
|
Also consider
Pureit Wave
|
|
|---|---|---|---|---|
 |
 |
 |
 |
|
| Price | ₹ 6,499 | ₹ 7,999 | ₹ 13,999 | ₹ 6,799 |
| Store | Flipkart | Flipkart | Flipkart | Flipkart |
| Tech | RO+MC | RO+UV+UF | RO+UV+Alkaline | RO+Minerals |
| Stages | 6 | 8 | 10 | 6 |
| Capacity | 6 L | 7 L | 8 L | 7 L |
| Max TDS | 2000 ppm | 1500 ppm | Not listed | Not listed |
| Install | Wall/Counter | Not listed | Wall mount | Wall/Counter |
| Weight | Not listed | 7.4 kg | 11.5 kg | 5.7 kg |
| Warranty | 1-Year | Not listed | 2-year | Not listed |
| Check price | Check price | Check price | Check price |
Picks by budget and use
Mistakes to avoid
RO, UV, UF technologies differ.
Some models have water-saving tech.
Choose based on water type and needs.
Current prices
How we chose
-
Compared the options
Compared specs and prices of 10+ listings on Flipkart, Amazon and other stores.
-
Checked reviews and sources
Owner reviews and expert sources, linked in each section.
-
No hands-on testing
We did not test these products ourselves.
-
AI-assisted, human-checked
Drafted with AI from our research notes, then checked and edited by our team.
FAQ
What is RO purification?
RO (Reverse Osmosis) removes dissolved salts, heavy metals, and impurities. It is good for high TDS water.
What is UV purification?
UV (Ultraviolet) light kills bacteria and viruses. It does not remove dissolved solids or particles.
What is UF purification?
UF (Ultrafiltration) removes suspended solids, bacteria, and cysts. It does not remove dissolved salts.
Which purifier is best for borewell water?
RO purifiers are generally suitable for borewell water, which often has high TDS levels.
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Our verdict
Choosing the right water purifier depends on your water source and specific needs. RO is for high TDS, UV for germ killing, and UF for suspended particles. Many models combine these for comprehensive purification. Consider capacity, stages, and installation type.
Lakshmi is the lead editor at AchhaDeals, covering smartphones, laptops, appliances, and festive deals across India. She researches live pricing, compares configurations across retailers, and reviews every guide before it is published.
Update history 14 Oct 2026: First published
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