10 Best RO Water Purifiers in India 2021

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Last week, we bought a TDS meter for our home. It costs less than about Rs. 300 and has been proving quite useful. When we checked the water, we were able to see that the TDS reading of the water supply at our home is in the range of 800-900. Well, it shouldn’t come as a surprise to someone living in Bangalore. We know our water isn’t exactly the best out there.

And that is why an RO ( reverse osmosis) water purifier is a must-have for residents of metro cities where you get borewell water, as well as other areas with TDS higher than 500 ppm.

We bought our Eureka Forbes AquaGuard Enhance RO water purifier about 7 years back. It was a wise purchase decision. It doesn’t have many bells and whistles. Though the annual maintenance with filter change costs us about Rs. 4000+, water quality is quite good. So is the after-sales service, making it overall a good choice.

Back then, when we think about water purifier, the first choice was Eureka Forbes. But now, that is not the case. Hema Malini has shown us that we do have choices like Kent which has brought out the hugely successful model Kent New Grand, garnering 3700+ reviews with an overall rating of 4.1 stars. Or if you want a water purifier that dispenses hot water, you could opt for AO Smith Z9.

There are numerous other options too available in the market to confuse anyone. That is why we bring to you this brief list of the best RO water purifiers in India.

Which are the Best RO Water Purifiers In India?

ModelCapacityPurification Technology

Kent Grand Plus

8 Litres RO + UV+ UF + TDS

Eureka Forbes Aquaguard


Eureka Forbes Aquasure

6 LitresRO+UV+MTDS

AO Smith Z9

10 LitresRO+SCMT

Havells Max RO

7 LitresRO + UV

Blue Star Aristo

7 LitresRO+UV
Hul Pureit Eco Water Saver Mineral10 Litres RO+UV+MF
V-Guard Zenora7 LitresRO+UF+MB
Faber Galaxy Plus9 LitresRO+UV+UF+MAT
Hul Pureit Copper + Mineral8 LitresRO + UV + MF

Before we get to the detailed list, let us understand the common terms used while you read about water purifiers.

RO which means Reverse Osmosis is a process where through a highly porous layer, water passes in the opposite direction of natural osmosis with applied pressure in order to remove impurities in it. The process helps remove TDS, lead, mercury, calcium, iron, asbestos and proves to be a mechanical barrier for biological contaminants like protozoan cyst, bacteria and virus.

UF means ultra-filtration, where small-sized particles suspended in water, are trapped in the membrane. It helps remove macromolecules and particulate matter.

UV stands for Ultraviolet rays which kill germs and microbes in the water.

TDS is Total Dissolved Solids which are made up of inorganic salts especially sodium, potassium, calcium, magnesium, etc.

As per WHO, TDS level of less than 300 mg per litre is considered suitable for drinking water. But note that this is based on a study in western countries. In Indian cities, however, we don’t have the same water quality. Our water is, unfortunately, more polluted, thanks to unchecked dumping of effluents and industrial waste into water bodies. Hence, as recommended by Water Purifier service technicians, RO purified water should have TDS less than 100 ppm.

Now, let us take a look at the list. Most of the water purifiers in this list cost more than Rs. 10000. So, if you are looking for a budget-friendly option, take a look at our list of best water purifiers under Rs 10000

Best RO Water Purifiers In India

Kent New Grand 

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  • 7 stage purification process
  • 8 liter storage tank and 20 litre per hour and 100 litre per day purification capacity
  • Filter change and UV fail alarm
  • Save water technology that reduces water wastage

  • High price tag.

Ideal for areas receiving borewell and brackish water with TDS level between 500-2500, Kent New Grand is one of the top-rated RO water purifiers in India.

With 7 stage water purification including reverse osmosis, ultrafiltration, UV filtration and TDS controller, it removes inorganic salts, odours, salts, bacteria, viruses and other contaminants, but still retains natural minerals in the water.

The filter cartridges include sediment, carbon block filter, UF and post-carbon. Though the filtration system is advanced, water wastage is minimized with the Save Water technology.

The purified water is stored in an 8-litre transparent tank made of food-grade plastic. Thanks to the in-tank UV disinfection feature, you can store the water in the tank for an extended period without worrying about it getting contaminated.  Note that even though the Kent New Grand has a water purification capacity of 20 Litres per hour, ideally it should be used to purify just about 100 litres of water a day.

Yet another advantage of this water purifier is the computer-controlled process that indicates when it is time to change filters and when the UV lamp needs to be changed.

Talking about the disadvantages, you will have to shell out about Rs. 4500 plus for a complete filter change, which usually has to be done every 12 months. (If you want to extend the filter life, you could install a pre-filter that purifies impurities like sand costing about Rs. 1000.) Also, in certain towns, you may find the after-sales service to be not-so prompt.

Water wastage is a bit too high at 500 ml for every litre. However, you can buy an extra tank along with the water purifier, which can be used to store the refuse water for gardening, mopping or other purposes.

Even though there are a few flaws, overall, with one-year manufacturer warranty and 3 years free service, and an excellent filtration system in place, the Kent New Grand is one of the best options to choose from.

If you can work around with a water purifier with 15 litres per hour output and daily duty of 75 litres, you could opt for Kent Grand. 

If you tend to go on weekend getaways frequently, you may want to consider Kent Grand Plus, which is available at a slightly higher price tag. It has a UV LED light in the storage tank which is optimal if you leave water unused for long periods. The tank is also slightly larger with a 9-litre capacity.

If you need an alkaline filter to maintain a pH of 8-9 and UV LED light in the tank, then you may want to opt for Kent Supreme Extra, which has 8-litre tank and 20 litre capacity. It also has Zero Water Wastage Technology that pumps the wastewater to the overhead tank. This water can be used for other purposes like watering plants or mopping.

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You may also like our article on Best Gravity Based Water Purifiers In India

Eureka Forbes Aquaguard Enhance RO UV UF MTDS Water Purifier

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  • The triple protection technology of Reverse Osmosis, Ultra Violet rays, and Ultra Filtration makes drinking water completely safe
  • Electronic Membrane Life Enhancer technology for prevention of scaling
  • Carbon polished taste enhancer technology that gives the drinking water its sparkle.

  • No alarms or indicators for filter change.
  • Water cannot be stored in the tank for more than 2 days.
  • Comparatively smaller tank

As mentioned earlier, we have been using the Aquaguard Enhance RO water purifier for the past 7 years and has been quite happy with it. But what we would like to recommend is their advanced version which in addition to RO, UF and UV, there is an MTDS that ensures that water from multiple sources with TDS of up to 2000 ppm is purified into a potable level.

In addition to the RO cartridge, UF and UV chamber, the Aquguard Enhance has a few filters that are rather unique. They are- the iFilter that removes suspended particles in the water; Chemi-Block that removes chlorine and other organic compounds; Biotron cartridge that improves water absorption; Mineral Guard to prevent calcium and magnesium deposits and also a taste enhancer.

The storage tank has a maximum capacity of 7 litres which is a bit lesser than the Kent water purifiers. It has sensors that automatically switch off the machine when water is full and switches on when water falls below a particular level.  Like Havells Max RO, the purified water output per hour is 15 litres.

The water purifier also has an in-built voltage stabilizer that prevents any damage in case of fluctuations between 150-270 Volts.

Talking about the drawbacks, as the Aquaguard Enhance doesn’t have a storage tank with an in-built UV disinfectant feature like Kent Grand Supreme Extra, you can’t store water in it for more than 2 days. So, before you go on vacation, you have to either switch off the machine and throw away any water in it or dispose it once you reach back after vacation. Also, it doesn’t have any of the alarms that indicate when it is time for filter or UV lamp change.

With excellent after-sales service and a fairly efficient filtration system in place, the Eureka Forbes Aquaguard Enhance is an excellent choice for homes with multiple sources of water like borewell, tanker, well water etc.

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Eureka Forbes Aquasure Water Purifier

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  • 6 stage purification process of Reverse Osmosis, Ultra Violet rays, and Ultra Filtration with TDS controller.
  • Multi-coloured indicators to warn of low-level water pressure, error with the machine.
  • Voltage drop/surge protector system.

  • Only 6 Litre water tank.

Black, Stylish and futuristic, this water purifier from the house of Eureka Forbes has been dubbed as a smart water purifier. Its purification system is almost similar to the previous Aquaguard Enhance RO with UF, UV chamber,  iFilter, ChemiBlock, Biotron, Mineral guard and taste enhancer. But what makes it really smart is its user-friendly features.

The stylish water purifier comes with LED indicators to alert you when water is full, the pressure is low, there is no water supply or when there is an error. The filter cartridges last for a year or for up to 6000 L. And the device also has a smart plus feature that protects the device against voltage fluctuations.

A drawback, however, is that it has just a 6-litre storage tank compared to the Aquaguard Enhance’s 7-litre tank.

So, if you fancy an advanced water purifier with smart features, then the Eureka Forbes Aquasure is sure to delight you.

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AO Smith Z9 RO Water Purifier

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  • 8 stage water filtration
  • Large capacity tank of 10 litres
  • Dispenses hot water.

  • Tank has to be completely full for dispensing hot water.
  • Technicians lack expertise
  • Pretty Expensive

If you fancy a water purifier that gives you hot water, then this AO Smith Z9 perhaps is the only option in India that will suffice your needs. It also has the largest tank in the segment with a 10-litre capacity.

With 8 stage advanced filtration system, the AO Smith Z9 removes up to 95% of TDS in water. The heating element helps you with hot water of 45 to 80 degree Celsius, which apart from drinking can be used for soaking pulses and cereals, help you speed up cooking and soothe sore throat etc. Don’t worry, the hot water faucet has a child lock to prevent any untoward accidents.
Note that the water is not boiled. So, it is not advisable to use this water for preparing baby food or bottle sterilization without further boiling.

The 8 stage filtration system includes a pre-filter, sediment filter, carbon block, RO, mineralizer, double protection dual filter, Patented Side Stream RO Membrane + MIN-TECH (Mineraliser Technology) and advanced recovery technology.
The ART ( Advanced recovery technology) is said to be a unique technology that reduces water wastage without compromising on purified water quality.

Talking about the flaws, first of all, the tank has to be completely full in order to get hot water. Next, the height between the faucet and the stand is not sufficient for keeping 1-litre bottles. So you may have to remove the stand for easy use. Yet another problem is that the water purifier won’t work if there is no power.

With an annual maintenance cost of about Rs. 4500, pretty “hot” features and a large tank, the AO Z9 is indeed an alluring choice. However, it comes with a hefty price tag that makes you think twice before you buy.

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Havells Max RO

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  • One of the unique water purifier models that corrects water pH level.
  • Automatic voltage tripper to protect the purifier from a surge of electrical current in excess of 330 Volts
  • Automatic alerts for UV, SV, and pump failure, low water pressure, full tank.
  • Removable tank

  • High level of water wastage.
  • High maintenance charges.

Havells is a trusted name when it comes to home appliances. They recently forayed into the water purifiers segment and have been garnering rave reviews.

Their Max RO water purifier which was launched in 2018 is one of their most successful models suitable if the water supply in your home is less than 2000 ppm.

In this purifier, water passes through multiple layers of filtration, for the best results. First of all, it goes through a sediment filter to capture sand and other heavier particulate matter, followed by an activated filter cartridge. Then, it goes through a RO membrane, followed by UV for eliminating pesticides, harmful chemicals, and impurities in the water.

In addition, in order to correct the pH and improve mineral content, water is passed through a mineral cartridge and then a silver impregnated taste enhancer. The last revitalizer cartridge is said to help improve hydration and mineral absorption.

Havells has also introduced “I Protect” technology that has been inbuilt in the water purifier to monitor water quality. As with Kent Grand Plus, the Havells Max RO also have alerts for self-diagnosis, purification process, a tank full, low pressure and error alerts for UV, SV and pump failure.

While Eureka Forbes and Kent have MTDS technology, Havells have a Mineral cartridge to adjust the mineral levels. Here, 100% of the water goes through RO, which is not the case with Kent.

The purifier has an output of 15 litres per hour. The removable 7-litre storage tank is easy to clean too. The water purifier also has a holder on which you can keep cups and small bottles for filling water.

Talking about the maintenance, the filter cartridges usually has to be changed annually. The annual maintenance costs about Rs. 4-4.5k which includes filter change.

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Blue Star Aristo RO+UV Water Purifier 

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  • Double layered UV and RO protection
  • Copper impregnated activated carbon
  • Child lock function
  • Aqua Taste Booster

  • No SMPSs to trip in case of surge in electricity
  • Delay in installation and after-sales service in certain towns.

Blue Star is quite a reputed brand when it comes to air conditioners. Their entry into the water purifier segment has been well received too.

The Aristo water purifier costs a tad less than most entries in this list. But unlike them, Blue Star Aristo has only 6 stage of water purification. They are- pre-filter to remove larger particles like sand, a pre-carbon filter to remove dissolved contaminants and impurities, a sediment filter, an RO membrane, a UV lamp to kill microbes and a post-carbon filter with Aqua Taste booster.

What it lacks compared to Kent New Grand is ultra-filtration and compared to Havells is the silver taste enhancer. If you are particular about having an ultrafiltration system, you may have to opt for Blue Star Aristo RO+UV+UF AR5BLAM01 for a slightly higher price tag.

When you objectively look at it, the filtration system of Blue Star Aristo is in no way inefficient than any of the other water purifiers in this list. Blue Star uses a double-layered RO membrane + UV lamp in order to improve filtration efficiency. The copper impregnated activated carbon filter adds to the anti-bacterial property of the filter. Moreover, as per Ayurveda, water with copper traces is said to be highly beneficial for health.
An added advantage of this water purifier is that it comes along with an extra pre-filter, which as mentioned earlier enhances the life of in-built filters.
The storage tank of Blue Star Aristo is of 7-litre capacity

The alarm system of the water purifier indicates when purification is on, the tank is full, the pressure is low or when the UV lamp fails. If you have small children and the purifier is installed within their reach, you will find the child lock feature quite useful too.

One of the main drawbacks of this water purifier is that the after-sales service and installation is not quite prompt.

With 1 year warranty and efficient filtration system, the Blue Star Aristo is one of the best choices for homes where the water supply has a TDS level of less than 2000 ppm.

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HUL Pureit Eco Water Saver Mineral RO+UV+MF wall mounted/Counter top Black 10L Water Purifier

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If you are looking for a mix of style and performance, look no further than this purifier from Hindustan Lever. 

Foremost, the all-black look of the purifier looks eclectic and stylish and is bound to be the focal of any ambiance. Crafted from engineered plastic, it is sturdy, durable, and absolutely hygienic. 

The purifier can store 10 liters of purified water that is sufficient for small to large families. Using multi-stage purification with RO technology, the machine can decontaminate water up to 2000 ppm of TDS value. Hence, the unit would be ideal to purifying water from any source, be it borewell or municipal taps. 

The machine boasts of a 7-stage purification process including RO, UV, and MF. This eliminates all dissolved and undissolved impurities, harmful bio-organisms like viruses, bacteria, etc., pesticides, and all possible contaminants. Moreover, the essential elements like calcium, magnesium, etc., are restored for an optimum water taste. 

With any RO, high water wastage is taken for granted. But the purifier flaunts a unique and innovative technology that reduces this water wastage significantly. The brand touts of saving 60% of the waste water generated. It saves up to 80 glasses of water daily compared to other similar RO purifiers.  This proves a boon for households struggling with a water crisis.

Consuming just 36 watts of power, it offers an exceptionally high flow rate of 24 liters/hour. Moreover, the purification process stops automatically once the tank gets full. For added convenience, it flaunts a double-lock purity system of advanced alert system and auto shut-off system. Apart from alerts like a tank full/empty, germ-kit change and any machine error. Its purity lock system stops the filtration process when the germ kit has expired. 

The unit comes with a standard one-year warranty, and the brand also gives a free installation with the product. 

Looking at its cons, its slightly bigger and bulky size can be an issue though it is justified with its 10-liter capacity. The after-sales service of the brand has been unsatisfactory, according to few users. The purifier is also expensive at around 14k considering you need to purchase the pre-filter separately.

But the high style appeal and brilliant functionality make it worth every penny, as confirmed by its customer star rating of 4.6/5 from approximately 1400 customers. 

V-Guard Zenora RO+UF+MB 7 Liter Water Purifier With 7 Stage Purification

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V-Guard is another popular Indian brand that manufactures products especially for the Indian landscape. This water purifier, too, has been designed keeping Indian water quality in mind. 

The look of the purifier is aesthetically pleasing in white and would be an asset for any ambiance. It is sturdy and built to last long as it is crafted from high-quality plastic. Its purified water tank is of 7 liters capacity, which is decent. The purifier can be placed on a countertop or wall-mounted as convenient.

It can effectively purify water up to the TDS level of 2000ppm. Thus, it effectively purifies water from all sources like borewells, tankers, municipal, taps, etc. 

For purifying water, it flaunts of 7-stage advanced filtration process including pre and post RO treatment. The pre-sediment filter comes as a part of the unit and helps reduce turbidity and macro contaminants to safeguard and enhance the RO membrane’s longevity. 

Both its RO and UF membrane are highly advanced and world-class quality that renders a highly efficient purification to eliminate all kinds of contaminants existing in the water. They not only add back the minerals but also polish the water to make it extra clear and with optimum natural taste. 

Indicators like purification on, tank-full, and low-pressure alert make it extra convenient to use the purifier. 

What delights the customer is the brand’s true comprehensive one-year warranty that includes its filters, RO membrane, and electrical parts. It also includes free replacement of two pre-filters and two pre-emptive maintenance services. This takes your annual maintenance cost significantly down.

The AMC plans are also cost-efficient, while its customer service is efficient in most parts of India. The purifier costs around 9.2k.

Looking at its cons, it does waste water like any other RO and might need a pressure booster in low water pressure areas. It also lacks a UV filter.

Despite minor complaints, the product has been earning rave reviews, as suggested by its star rating of 4.6/5. Thus, it would certainly be a value-for-money investment. 

Faber Galaxy Plus RO+UV+UF+MAT, 9 Liters, 8 Stage Mineral Water Purifier

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As a brand, Faber has been winning the hearts of Indian consumers with its superb quality products. The water purifier from the brand proves true to its fame. 

The purifier is built from ABS food-grade plastic and is sturdy and long-lasting. In black color and silver design, it looks stylish and modern to pump up any ambiance. Its water storage capacity is 9 liters that is reasonably high and sufficient even for large families. For added safety, its body and tank come with germ block technology to keep the water safe and contamination-free at all times. 

The entire build and design are sleek and compact to be placed on a countertop or wall-mounted with equal ease. 

For purification, the machine flaunts a highly advanced 8-stage multi-purification process to provide you with the best quality and natural tasting water. 

The pre-sediment filter comes as part of the unit that not only saves you extra cost but also helps enhance the RO membrane life. 

The RO membrane used here is the USA manufactured Filmtech RO membrane that is so powerful that it can purify water up to a TDS value of 2500 ppm. Hence, it boasts of one of the most potent RO purifiers available in the Indian market. 

The purifier also comes with MAT or mineral addition technology that restores essential minerals like calcium, magnesium, etc., and keeps the health and taste quotient of purified water optimum. It also flaunts of copper guard technology that adds copper to purified water and takes its health quotient notches higher. 

Consuming just 36 watts of energy, the purifier has a remarkable filtration capacity of 13.5 liters/hour.

Features like energy-saving mode and auto-shutoff on tank full add to your convenience of using the appliance. 

The appliance comes with a standard one-year warranty and costs around a little less than 10k. 

On the flip side, the purifier lacks any advanced features like a TDS controller, LED alerts like filter change/membrane change, purification on, etc. It is purely a basic purifier but excellent in what it does. The water wastage is also high, as with any RO purifier. 

In areas with high TDS, its annual maintenance cost can be high at around Rs. 6500, which might be hurting. 

Despite this, its customer rating of 3.8/5 indicates that you would never regret making this addition to your kitchen.

HUL Pureit Copper+ Mineral RO + UV + MF 7 stage Water Purifier

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The health benefits of copper-infused water are getting popular again. If you crave it, then you must undoubtedly consider this purifier from a trustworthy brand, Hindustan Lever.

Crafted from engineered plastic in black and copper hue, the purifier flaunts an incredibly stylish look and stands a class apart from the crowd. It is sturdy, lightweight, and reasonably compact to be easily mounted on the wall.

It purifies water via a multistage RO purification process that can effectively eliminate all contaminants and purify water up to a TDS value of 2000 ppm effortlessly. It follows an advanced 7-stage purification process that includes MF and UV to retain the taste of water while elimination all possible contaminants.

It also flaunts a unique Copper Charge Technology that infuses the purified water with copper ions. Hence, the health quotient of the purified water rises notches higher. Moreover, it comes with an intelligent copper auto-cleaning technology that flushes out previously accumulated copper and infuses fresh copper ions in the right amount into the water periodically. Thus, the health benefits of water are not compromised at any point. 

Another standout feature of the purifier is its two water dispenser taps. One gives you copper-infused water while the other dispense plain purified water. Moreover, you have soft-touch sensor buttons for easy dispense of water. 

It has an 8-liter purified water storage capacity to fulfill your needs easily. Its 60 watts energy consumption is pocket friendly though we have other purifiers that consume a lot less energy. The auto-shut-off feature and an advance alert system for germ-kill kit change are convenient features. 

Looking at its drawbacks, it has a high-water wastage of 600 ml per liter of water. A major flaw can be its one-touch sensor buttons. They do not work in the absence of electricity. Thus, you might not get purified water supply during a power outage even though its tank is full. 

Another flaw is its standard warranty not covering the consumables like membranes and other replaceable parts. Given that, it is an expensive purifier at around 20k. 

Despite the flaws, its 4.5/5 customer star rating suggests that you can never go wrong with this purifier. 

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