RO water purifiers are likely to be the most important thing you’ll research for your family this year. Our country’s water quality is a matter of concern. Whether you reside in busy cities such as Delhi or Mumbai or peaceful towns, the water flowing from your tap contains substances which are unhealthy to drink. We are talking about harmful pesticides, heavy metals such as lead and arsenic, and deadly bacteria.
You can’t simply trust boiled water anymore. Boiling of water kills bacteria but does not remove any chemical substances or dissolved salts. That’s why having the best RO water purifier is not a luxury but necessary. But choosing a good one is a challenge. The market is flooded with various types of water purifiers. Terms such as RO, UV, UF, TDS, and alkaline are widely used.
Do you need a simple UV water purifier or a strong RO UV UF system? What is the appropriate capacity for storing water for a family of 4? Which brands provide good after sales services? We have some answers.
We’ve compared features such as water purification technology, filtration capacity, maintenance costs, and customer reviews. Stop drinking contaminated water and find the best RO water purifier for your home.
Here is the complete buying guide on how to choose the best water purifier in India.
Best RO Water Purifiers in India At a Glance
- Best for low maintenance for 2 years: Native by Urban Company M2 PRO (8L, ~20 LPH, app + battery backup)
- Best for variable water (municipal + borewell mix): Atomberg Intellon (adaptive modes, 8L)
- Best for tight budgets from a legacy service network: Aquaguard Sure Delight RO+MC 1X (6-stage, mineral charge, 6L)
- Best for straightforward high-TDS performance: KENT Grand (8L, 20 LPH)
- Best for value + safety lockouts: Pureit Wave Plus RO + UV + Minerals (Black) (7L, 6,000L filter life)
- Best for maximum storage under ₹5–6k deals: AQUA D PURE 4 in 1 Copper RO (12L tank)
- Best for premium build + pH balancing: Havells Delite Kop’ere (6.5L, up to 2000 mg/L TDS)
- Best for feature-rich “all-in-one” RO: KENT Supreme Star (9L, 20 LPH + alkaline + copper, UV in tank)
- Best for long warranty-style coverage: Livpure Allura Prime (7L; 10-stage + in-tank UV)
Comparison Table (quick spec snapshot)
| Product | Purification | Storage | Output rate | Standout |
| Native by UC M2 PRO | RO + UV + mineraliser + alkaline + copper | 8L | ~20 LPH | App monitoring + built-in battery backup |
| Atomberg Intellon | RO + UF + UV + alkaliser (adaptive modes) | 8L | (varies; brand claims fast fill) | Uses RO only when needed (adaptive) |
| Aquaguard Sure Delight RO+MC 1X | RO + mineral charge | 6L | (not clearly stated on official page) | Trusted service footprint; low entry price |
| KENT Grand | RO + UF + TDS control + UV LED tank | 8L | 20 LPH | Simple, proven, parts easy to find |
| Pureit Wave Plus | RO + UV + minerals | 7L | (brand highlights speed + recovery) | “No bypass” mineral enhancer + lockout alerts |
| AQUA D PURE 4 in 1 Copper RO | RO + UV + UF + TDS adjuster | 12L | (not reliably stated) | Big tank for the money |
| Havells Delite Kop’ere | RO + UV + UV LED + pH balance | 6.5L | (manual suggests up to ~25 LPH; varies by input) | Premium safety monitoring features |
| KENT Supreme Star | RO + UV + UF + TDS + alkaline + copper + UV in tank | 9L | 20 LPH (claimed) | “Everything included” feature set |
| Livpure Allura Prime | RO + UV + UF + copper + alkaline | 7L | (not clearly stated) | 10-stage + in-tank UV positioning |
Best RO Water Purifiers in India: Our Top 9 Picks
1. Native by Urban Company M2 PRO
Key Features
The Native M2 PRO is perfect for individuals tired of surprise maintenance calls and water purifier drama. The big advantage isn’t the ’10-stage’ claim but maintaining your purifier—aided by an app to keep an eye on the filter health and total dissolved solids (TDS) levels.
In everyday use, the touchscreen unit for dispensing clean drinking water and pre-set capacities help to minimize spillage issues and the built-in inverter ensures that you continue to enjoy clean water even in case of frequent power outages in your area.
With a tank capacity of 8L, it is ideal for small families that do not need to refill the water purifier every day, and its 20 LPH capacity is suitable for a normal household with surges in usage (e. g., morning rush, cooking, visiting guests).
Although that is taken care of for the duration of the plan, we recommend checking on availability of services at your PIN code area and understanding what kind of additional support you can expect once the warranty period is over. If you want a modern RO with “set and forget” qualities for the first 2 years in 2026, this product offers compelling value.
Note: Native M2 and M1 water purifiers have the same 10-stage RO+UV+alkaline+mineralizer water purification system with 2 years of filter life, but M2 comes equipped with smart app-enabled water quality monitoring, TDS tracking, touchpad dispensing and preset modes, while M1 is equipped with a simple manual faucet tap.
If you need features such as IoT connectivity and an automated water dispenser, opt for M2; if you are looking for basic functions at a lower price point, M1 is sufficient.
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2. Atomberg Intellon – India’s 1st Adaptive Water Purifier
Key Features
Atomberg’s Intellon’s underlying idea makes sense: Indian homes rarely have access to a reliable source of water supply, making a fixed “RO always on” strategy wasteful and can make municipal water taste stale.
Intellon adapts its purification capabilities based on the incoming TDS levels and allows you to adjust the purified water’s TDS levels—creating a device that balances safety, taste and operating cost. In practical terms, it detects the quality of raw water supplied. If the raw water is relatively clean, it adjusts its purification process. It significantly reduces the amount of water lost during filtration. In “Eco Mode,” it can save up to 80% of water compared to traditional filters.
The 8 L tank capacity is family-friendly, and the app connectivity goes beyond being a mere fancy feature that provides the “condition-based maintenance” concept.
Be cautious though—all adaptive systems come with increased complexity, meaning if you need an RO filter that behaves in the same way every day, you might find the approach to be overengineering.
If you have a household which uses multiple sources of water supply and wishes to avoid over-reliance on RO purifiers, Intellon from Atomberg is a clever device that can make it to the top of your shopping list.
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3. Aquaguard Sure Delight RO+MC 1X Water Purifier
Key Features
Aquaguard’s Sure Delight RO+MC 1X is a well-known brand with a simple installation and a reasonable price—especially if it’s your first RO. With its 6-stage purification system and mineral addition technology, it provides clean water with good taste—without feeling too “empty.”
For many homes supplied by borewells or tankers, this is sufficient provided you have adequate input water pressure and proper installation. The 6L tank is suitable for couples and small families, but larger households may face challenges during peak hours due to its small capacity, requiring frequent refills.
You won’t get the newer features of high-end ROs such as battery backup, advanced TDS dashboards, and automated processes. That’s okay, as simplicity can be a good feature. The important thing to consider is the availability of spare parts and after sales service: Aquaguard offers good service reach. Aquaguard’s Sure Delight RO+MC 1X is a good option to get a reliable and affordable RO water purifier—ideal for those who value good after-sales service over advanced features.
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Know the complete list of best aquaguard water purifiers.
4. KENT Grand RO Water Purifier
Key Features
The KENT Grand falls into the “reliable RO” category with all the necessary features—RO purification, UF backup, a TDS controller for good taste, and a UV LED inside the tank. It eliminates all forms of contaminants—physical, chemical, and biological—ensuring clean drinking water. If you live in an area with high TDS levels, it can easily manage water from borewells and tanker trucks.
The 8L tank capacity and 20 LPH output make it suitable for many Indian households. It avoids being a “smart gadget,” and it’s not a drawback; fewer gadgets mean fewer points of failure.
The good thing about this filtration system is the UV LED in the tank. Generally, after water is stored in the tank, it can become contaminated if it is left to sit there for too long. KENT provides a UV lamp, which is placed directly in the water storage tank. The filtered water remains free from bacteria and other contaminants 24/7. Even after staying in the tank for many days, the water is safe to drink.
If you are looking for a reliable, conventional RO water purifier for providing good quality borewell/tanker water with regular maintenance, it is a strong pick.
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5. Pureit Wave Plus RO Purifier + Mineral + UV
Key Features
The Pureit Wave Plus comprises a pre-RO sediment filter, a pre-RO carbon filter, a post-carbon filter, and a UV lamp. It ensures that you get clean and balanced drinking water that is neither acidic nor unhealthy.
With a 7-liter tank capacity, it is generously sized for a budget model. Additionally, the Mineral Enhancer cartridge will help to provide good-tasting drinking water compared to basic RO systems with no mineral cartridges.
Pureit has mentioned that apart from RO technology, the product comes equipped with UV sterilization technology, providing an additional layer of protection against microbial contamination. However, its trade-off is the replacement of filters, which could be expensive.
If you are looking out for a standard RO water purifier with adequate storage capacity and focus on good quality and safe drinking water technology, Wave Plus is a good option—provided you have good services available in your area.
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6. AQUA D PURE 4-in-1 Copper RO Water Purifier
Key Features
AQUA D PURE is a “maximum tank with minimum cost” type of product and strongly recommended as a budget-friendly option. If your family consumes a lot of stored water (big family, frequent power outages, or heavy cooking), then 12 L capacity provides a good amount of advantage.
This RO water purifier brings to you ancient wisdom in 2026. This device provides water infused with copper. It comes with a copper storage tank.
After purification, the water gets stored in this copper tank, allowing it to absorb the healthy properties of copper naturally. Each sip of water provides the benefits of copper.
It is a 4-in-1 system. This means it combines features such as RO, UV, UF & TDS controllers in a single unit. Equipped with robust technology, this water filter effectively deals with high TDS levels up to 1500 ppm. If you are looking for a budget-friendly water purifier that provides premium features such as copper infusion, this product is a good option. Installation of the product is also simple.
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Check this similar product if interested: AQUA D PURE Copper + Alkaline RO Water Purifier.
7. Havells Delite Kop’ere Water Purifier
Key Features
Havells Delite Kop’ere is a premium filter that combines purification technology with “water conditioning” features – pH adjustment, in-tank UV LED and safety indicators that can stop the flow of water if its quality is deemed unsafe.
It is designed to appeal to modern kitchens and comes loaded with features that give it the look and feel of an appliance rather than just a basic RO system. With a capacity of 6.5 liters, suitable for medium-sized families who do not require large quantities of stored drinking water for cooking and hosting guests.
Havells claims that this filter can handle water with TDS levels up to 2000 mg/L, catering to several borewell water challenges; however, its effectiveness depends on water pressure and turbidity levels. If you are looking for a premium brand offering good monitoring and alert systems and are ready to pay extra, then this filter offers great value. However, if you prioritize good value for money based on storage capacity, other options are available in the market.
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8. KENT Supreme Star RO Water Purifier
Key Features
The KENT Supreme Star is “loaded” with all that KENT does well—good quality RO technology along with multiple stages of treatments and hygiene features. It’s clear what this product offers—RO technology removes dissolved impurities, UV/UF technology provides safe drinking water from microbes, TDS management enhances the taste of water, the Alkaline + Copper formula is for users who want this profile, and the UV lamp in the tank reduces bacterial contamination during storage of water.
Adding automatic flushing to the RO technology ensures it maintains good condition too. The key benefit is convenience of operation; each stage contributes to keeping the purifier complete.
However, every additional RO cartridge/filter leads to higher maintenance costs over time. If you replace your filters as per schedule and use genuine spare parts, the KENT Supreme Star can be a convenient high-end RO water purification system. If you are budget sensitive towards RO filter replacements, go for KENT Grand, which is a cost-effective option. Opt for Supreme Star if you require a higher capacity of storage (9 L type) and complete features as mentioned above, and you are prepared to take extra care of expensive replacement parts.
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9. Livpure Allura Prime Water Purifier
Key Features
Livpure Allura Prime targets the middle-class family buyer seeking modern features without paying high-end prices. A 7 L water tank is sufficient for daily drinking and cooking needs, while the RO + UV + UF combination ensures good quality, clean drinking water for various Indian water sources.
Livpure gives much emphasis to its “10 stage” filtration method, including copper and alkaline, features that several customers associate with pure and fresh-tasting water. The actual taste of water depends upon how effectively the RO removes TDS and how effective the aftertreatment filter is.
The key point of difference is its service strategy—Livpure provides ‘zero cost’ for a specified number of years while buying some of its products. It can provide good value if you know what is covered (filters, membranes, visits) and what is not covered (additional accessories like booster pumps or pressure regulators, consumable materials exceeding capacity limits, etc.).
If your area has a good Livpure service network, this water purifier can be a convenient and balanced product choice.
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How We Chose These RO Water Purifiers
We evaluate RO water purifiers the way they’re used in Indian homes, not just on “stages” or brand claims. First, we check water compatibility—whether the purifier is suited to municipal, borewell/tanker, or mixed sources, and any stated TDS guidance or test conditions. Next, we look at daily usability: storage capacity and purification rate (LPH) should match family demand without long wait times. We then assess taste and water quality management, preferring models with sensible mineralization, TDS control, or adaptive purification that avoids over-stripping minerals. Cost of ownership matters as much as price, so we consider service reach, warranty terms, and expected filter/membrane replacement burden. Finally, we rate hygiene and reliability features like in‑tank UV/UV‑LED and auto‑flush.
Want to know the difference? RO vs UV vs UF Water Purifiers: Which One is Best for Indian Homes?
The main reason why we need RO Water purifier
High TDS (excessive dissolved salts)
Water obtained from borewells, tankers, or some municipal sources contains high levels of dissolved solids (TDS) alongside dangerous contaminants such as heavy metals (arsenic, lead), excess fluoride, nitrates, and pesticides.
The water may taste salty, bitter, or hard, and excessive levels of TDS in drinking water can cause problems with our health if consumed regularly. The RO water purification system is designed to remove excessive TDS and other contaminants from the water by passing it through a semipermeable membrane, providing clean drinking water.
The TDS range varies with the source of water: municipal (treated) supply is typically available in a range of 100-500 mg/L in many cities; borewell and groundwater supplies contain higher levels of TDS, ranging from 220 to 2000 mg/L depending upon the area.
- < 50 ppm: Extremely Pure
- 50-150 ppm: Excellent (Good Balance)
- 150-300 ppm: Good (Safe and Healthy)
- 300-500 ppm: Acceptable (May have noticeable taste)
- 500-1200 ppm: High (Requires Water Purification)
- > 1200 ppm: Unsuitable/Unacceptable.
Here is the complete guide for TDS: TDS Value for Drinking Water: Best Range and Recommendations
Buying Guide: All The Information
1. What is Your Water Source?
The first step is to find out where your water comes from.
If you are getting the municipal corporation’s supply of water, it is purified at a plant. But since the pipelines through which it reaches you are old, there could be chlorine and some level of iron content in it. A UV water purifier can deal with such issues. But for complete peace of mind, we recommend an RO water purifier.
If you depend on a borewell or groundwater, you should have an RO water purifier. Groundwater has high TDS levels, containing salts, heavy metals, and minerals. Only an RO water purifier can effectively remove all the impurities present in it.
If you are dependent on tanker water, its quality keeps changing every day. There are days when it is clear and good, and there are days when it is cloudy or muddy. In such a scenario you require a purifier that includes RO, UV and UF technologies to deal with varying water quality.
2. Basics of RO, UV, and UF
Reverse osmosis (RO) is the most effective technology. It employs a semi-permeable membrane to filter water through small pores. It removes dissolved salts, arsenic, fluoride, and lead. It is necessary for removing excess minerals present in hard water.
Ultraviolet (UV) uses ultraviolet rays to eliminate bacteria and viruses. It provides effective means of water disinfection. However, it does not remove impurities such as dust particles and dissolved salts. Little clear water yields good results from UV water purifiers.
Ultrafiltration (UF) technology is similar to RO systems but has bigger filtration pores. It can eliminate bacteria and cysts but does not eliminate dissolved salts. Ultrafiltration systems do not need electricity to function.
To get pure drinking water in India, a combination of RO + UV + UF offers complete protection against contaminants.
3. What is the need for a TDS controller?
As mentioned earlier, RO removes minerals. This gives water a flat taste. In addition to this, it makes the water slightly acidic. A TDS controller, or mineralizer, is a filter used to add necessary minerals back into the water. It maintains the pH balance and enhances the taste.
Check if the water purifier comes equipped with a TDS control feature. Some models offer a manual option to adjust the TDS level. If you desire water with a distinct taste, then this feature can be useful.
Know more about the TDS Controller in Water Purifier: A Complete Guide to Safe Drinking Water.
4. Storage Capacity and Electricity
Consider your daily requirements. A family of four requires at least 10 liters of drinking water every day. In case of frequent power cuts, choose a model with a bigger capacity storage tank. A 6-liter capacity tank will deplete its supply quickly in case of a prolonged power outage. Go for 8-liter or above capacity tanks.
When it comes to power supply, all RO water purifiers require electricity to drive the pump. The power consumption usually will be low. There is no need to worry about a surge in electricity bills. However, if your area experiences power fluctuation problems, opt for a model with an in-built voltage stabilizer.
5. Maintenance and Service Costs
The initial cost of the water purifier is just the beginning. You need to replace filters periodically. Sediment and activated carbon filters need to be replaced every 6 to 8 months. RO membranes last longer, typically between 12 and 24 months. The UV lamp needs to be replaced after some years.
Final suggestions for your pick?
To enjoy a “hands-off” experience in 2026, the Native M2 PRO offers excellent maintenance options and an intuitive interface. If your water sources change frequently, Atomberg Intellon has implemented thoughtful solutions to limit excessive RO usage. For the financially prudent who require a reliable service network, we have Aquaguard and KENT Grand, providing strong competition in the affordable segment, while AQUA D PURE provides unrivalled capacity per rupee, provided one verifies its details regarding warranty and services available.
Frequently Asked Questions (FAQs)
If your TDS level is below 300 PPM, you may not require a water filter with RO technology. But if it exceeds 500 PPM, an RO filter is necessary. The majority of the cities in India have TDS levels higher than 500. You can determine your TDS level using a simple TDS meter available online. If you are unsure, buying a water filter with RO technology is a good option.
A TDS controller adds a small amount of unfiltered water to filtered water to maintain some natural minerals. A mineralizer adds essential minerals such as calcium and magnesium to the water. Although both serve the purpose of making water healthy and flavorful.
Regular RO water filters waste 2-3 liters of water for every 1 liter of filtered water. However, modern models such as KENT Supreme Star or Atomberg Intellon come equipped with technologies to minimize water wastage. Some models even provide an opportunity to reuse the drained-out water for cleaning purposes.
Copper has antimicrobial properties. Copper vessels help to eliminate harmful bacteria from water. Drinking copper-infused water is beneficial to promote better digestion, healthy skin, and a strong immune system. A copper water filter provides all the benefits of copper infusions without needing to store water in a copper vessel for a whole night.
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