RO water purifiers are likely to be the most important thing you’ll research for your family this year. Let’s admit it—the state of 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.
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
How We Chose These Water Purifiers
You know that we are responsible for taking care of your hard-earned money. Therefore, we did not simply pick out some random names. Our research methodology is robust. We are looking to identify the best RO water purifier capable of providing clean drinking water in genuine Indian conditions.
We began by evaluating the purification technology. India has diverse water sources. While some areas provide municipal water, which contains low salts but high amounts of chlorine, others rely on borewell water with high total dissolved solids (TDS) levels. We have chosen water purifiers capable of dealing with all types of water. We have prioritized models equipped with RO in addition to UV + UF technologies, as they help to remove physical impurities, biological contaminants, and dissolved salts.
Next, we looked into features such as TDS controllers and mineralizers. RO water purification systems remove important minerals along with harmful substances. Good-quality machines come equipped with features to restore these essential minerals. We were on the lookout for water purifiers which guarantee water that is not only safe to drink but also healthy and great to taste.
A water purifier becomes useless if you cannot get its filters replaced. We have shortlisted brands with extensive service network capabilities and good customer care services. We have also looked into the annual maintenance costs. A low-cost device with expensive filter replacements is not a good financial proposition in the long run.
Lastly, we looked into the construction and design. Since these devices are kept in the kitchen or living area, they should have a good aesthetic appeal. They should be durable as well. We have checked out consumer feedback on their ability to deliver good performance over a period of time. Water purifiers that meet all of our requirements feature in our list for this year.
Want to know the difference? RO vs UV vs UF Water Purifiers: Which One is Best for Indian Homes?
Best RO Water Purifiers in India: Our Top 9 Picks
1. Native by Urban Company M2 PRO
Best For: Tech-savvy individuals looking for easy maintenance.
Key Features
Let’s deal with something that feels completely new. The Native by Urban Company M2 PRO is a complete game changer. If you dislike big appliances that take up much space in your kitchen, this one is perfect. It is extremely compact. It has a modern look.
The device offers some fantastic features. We all know the problems caused by poor after sales care. Urban Company has resolved this issue. All services can be accessed via their mobile app.
The Native M2 PRO comes equipped with a high quality RO membrane and UV filtration system that guarantees water of pharmaceutical quality. Meaning, it is extremely clean.
The machine can be connected to your phone. The mobile app indicates when the filter needs replacing. It alerts you when the storage tank needs to be cleaned. No need to keep guessing about it. Regular maintenance issues can be simplified thanks to this device.
The water flow rate is also great. It fills the storage tank quickly. If you live in a modern apartment and want a smart and compact water purifier that matches your style of living, the Native M2 PRO from Urban Company is an excellent option.
Pros
- Seamless app integration. Provides live updates on your phone.
- Subscription plans cover the maintenance requirements.
- Compact design that helps save kitchen counter space.
- The RO technology used is of superior quality.
Cons
- It requires a good WiFi connection to experience its complete features.
- Native M2 Pro has a higher initial cost of purchase.
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.
2. Atomberg Intellon – India’s 1st Adaptive Water Purifier
Best For: Saving water and electricity.
Key Features
You may know Atomberg for its energy efficient fans. They bring a similar level of efficiency to water purification systems. The Atomberg Intellon is presented as India’s first adaptive water purifier, and it lives up to its name. Most RO filters result in significant water wastage. For every glass of clean drinking water, they throw away 2-3 glasses of water. This device deals with this problem.
It features “adaptive intelligence.” 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 build quality is good. It looks premium. The purification process includes RO and UV technologies. It comes with a TDS modulator, which helps to keep the taste of water intact.
The display is digital and clear. It provides real time information about the quality of water. Although Atomberg is a new player in the world of water purifiers (compared to big brands such as KENT), the technology used by them is advanced.
Pros
- It saves a vast amount of water and energy resources.
- The adaptive technology is intelligent and effective.
- The structure is strong and modern.
Cons
- The company is relatively new to the domain of water filters.
- The service network of the company is not as wide as that of Kent or Aquaguard.
3. Aquaguard Sure Delight RO+MC 1X Water Purifier
Best: Budget Friendly
Key Features
Aquaguard is a leading brand in India. Everyone knows the brand name. The “MC” in its name stands for Mineral Charge, an important feature. All regular RO purifiers remove naturally occurring minerals from water.
Equipped with RO + Mineral Technology, this water purifier removes harmful contaminants from water while retaining important minerals such as calcium and magnesium. As a result, we get refreshing and healthy tasting drinking water.
Its sleek design makes it compact. It can be easily accommodated in compact Indian kitchens with minimal countertop space. The installation process is smooth with Aquaguard’s extensive service network. They are available in almost all pin codes across India. The after sales service offered by the company is excellent.
Pros
- The water cartridge ensures good taste.
- Aquaguard enjoys good brand reputation in India. Easy accessibility to services.
- It comes at an affordable price considering its features.
Cons
- The 6-liter water tank capacity may not be sufficient for large families.
Know the complete list of best aquaguard water purifiers.
4. KENT Grand RO Water Purifier
Best For: Large families with high daily water consumption.
Key Features
If you have a big family or frequently welcome guests at home, you need a tough workhorse. Kent Grand is such a model. It is one of the top-selling water purifiers in India. It comes with a spacious storage capacity of 8 liters.
Kent has developed a unique multiple purification technology featuring RO+UV+UF. It eliminates all forms of contaminants—physical, chemical, and biological—ensuring clean drinking water. If you live in an area with high TDS levels, this is a good product. It can easily manage water from borewells and tanker trucks.
The design is strong and sturdy. Made from ABS food-grade and durable plastic, it can be mounted on a wall or placed on a countertop.
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 2 days, the water is safe to drink.
Although it may be a bit louder than some of its competitors while the pump is operating, its performance is unbeatable.
Pros
- It comes with a huge capacity storage tank.
- The RO, UV & UF filter combination is highly effective.
- It handles high TDS water.
- Kent is a popular brand.
Cons
- The device is big and occupies a lot of space.
- It can create some noise during the filtering process.
- The design seems outdated as compared to new generation.
5. Pureit Wave Plus RO Purifier + Mineral + UV
Best For: Style-conscious customers seeking robust safety features.
Key Features
The Pureit Wave Plus is more than just effective—it is also aesthetically pleasing. The sleek black finish lends it a sophisticated touch that sets it apart. But good looks alone are insufficient. Equipped with a 6-stage advanced water purification system.
This system comprises a pre-RO sediment filter, a pre-RO carbon filter, a post-carbon filter, and a UV lamp. In addition, it features a mineral enricher that adds essential minerals like calcium and magnesium back into the water. It ensures that you get clean and balanced drinking water that is neither acidic nor unhealthy.
The “Advanced Alert System” provides you with a 15-day advance warning of when the filter needs to be replaced. You can enjoy safe drinking water at all times, without worrying about the condition of your water filter.
The storage tank is designed to prevent any form of external contamination. Pureit claims to provide water filtration equipment adhering to strict US EPA (Environmental Protection Agency) norms of safety.
If you stay in a region with highly contaminated water sources and require complete protection, then the Pureit RO Water Purifier is the perfect solution.
Pros
- It has a modern and stylish black design.
- The 6-stage water purification technology is very thorough.
- The filter replacement alert feature is useful.
- It meets strict international safety standards.
Cons
- The cost of replacing filters may be relatively high.
- The plastic body of the product is prone to finger marks.
6. AQUA D PURE 4-in-1 Copper RO Water Purifier
Best For: Health-focused buyers
Key Features
Copper is making a big comeback. Our grandparents used to drink water from copper vessels. They were aware of its advantages. Copper helps with digestion. It enhances our immune system. It is anti-inflammatory.
The AQUA D PURE 4-in-1 copper RO water purifier brings to you ancient wisdom in 2026. This device provides water infused with copper. How is it possible? 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.
Moreover, if you are looking for an budget friendly water purifier that provides premium features such as copper infusion, this product is a good option. Installation of the product is simple.
The water filtered through this purifier has a distinct taste—fresh and metallic with a good tone.
Pros
- Copper infusion is available at a very affordable price.
- It has a large storage capacity of 12 L.
- It is a good, economical option.
- Installation is easy and DIY-friendly.
Cons
- The brand’s market value is lower than that of market leaders.
- The design is functional and basic rather than premium.
- The time taken by customer support to respond may vary.
Check this similar product if interested: AQUA D PURE Copper + Alkaline RO Water Purifier.
7. Havells Delite Kop’ere Water Purifier
Best For: pH maintenance
Key Features
Havells is known for quality electronics and appliances. Their Delite Kop’ere water purifier is a testament to good engineering skills.
The USP of this product is alkaline water. If you suffer from acidity or digestive issues or want to maintain a healthy pH level in your body, then this water purifier is perfect. It comes with an alkaline taste enhancer cartridge. Its functions include maintaining the pH level of water. The water has a smooth taste.
The design of the product is thoughtful as well. It has a transparent storage container cover. You can check how much water is available in the filter without having to open the device. It uses RO + UV technology to provide contaminant-free clean drinking water.
Havells offers free installation for this model as well, which is a good way to save some amount.
Pros
- The combination of alkaline and copper.
- The taste adjuster is a convenient feature.
- The product’s build quality is excellent (stainless steel tank).
Cons
- Although a copper storage tank is good, it requires periodic cleaning to maintain its effectiveness.
- Small tank capacity (6.5 L).
- Services may be slow to arrive in smaller cities.
- Compared to basic RO systems, this one is slightly expensive.
8. KENT Supreme Star RO Water Purifier
Best: All-in-one water purifier
Key Features
KENT Supreme Star is a premium RO water purifier. Equipped with a multi-stage purification technology—RO, UV, UF, alkaline, copper, TDS control, and In Tank UV—it removes bacteria, viruses and other substances from water.
The integrated alkaline enhancer ensures the water pH is raised to over 8, resulting in less acidic drinking water. The active copper cartridge provides real-time copper-enriched water.
A TDS control valve allows you to set the total dissolved solids content in water, ensuring necessary natural minerals are preserved rather than making it totally devoid of minerals.
It includes a UV LED in the water storage tank, which helps to maintain healthy, bacteria-free stored water for a long time.
Pros
- Comprehensive purification with alkaline and copper.
- Digital display for easy use.
- In-tank UV for safe storage space,
- Good 9L capacity, and 20L/h flow.
Cons
- Expensive compared to standard RO systems.
- Additional filters implies increased maintenance costs.
- No specific “Zero Water Waste” tag.
9. Livpure Allura Prime Water Purifier
Best For: Copper Infusion.
Key Features
Livpure is a tough rival in India’s market. One of its popular models is the Allura Prime. Featuring advanced technologies in a stylish design, this is a great water purifier. Features such as the 7-stage water purification stand out. Compared to the common 4 or 5 stages found in many other water purifiers, this one provides extra effective purification.
Features such as silver-impregnated activated carbon filters are included in its 7-stage purification process. The ability to remove unpleasant odors and improve the taste of water is great.
It also helps to prevent any microbial growth. Equipped with RO+UV+UF technologies, it ensures that all the drinking water is completely safe.
Pros
- It offers 7 stages of water purification.
- The carbon filter gives a better taste of water.
- The design is sleek and modern. Offers good value for money.
Cons
- Regular replacement of filters is required if the water is heavily contaminated.
- Livpure’s customer care service quality varies based on the location.
- Supports TDS only up to 500 ppm
So, what is your pick?
Firstly, check your water quality. Do you have borewell water? If yes, then you need a good quality RO for hard water, such as Native M2 PRO. Does your water have moderate hardness, but you want to ensure its safety? Do you live in a small family? KENT Grand or Pureit Wave Plus is ideal to save space. Do you want to minimize water wastage? KENT Supreme Star is the best option.
Consider the maintenance cost. Buying a water purifier is a simple task; however, maintaining it is challenging. Companies such as Urban Company, KENT, and Aquaguard have robust service network facilities. Their presence is widespread throughout the country. A good service network facility is crucial. In case a cartridge needs to be replaced, we need immediate assistance from a technician. So, avoid buying a product from a company that does not provide services in your city.
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.
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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