What/which are the best water purifiers in India 2021? What are some pro tips for buying best Ro water purifier for home use in your budget?

Should you buy RO, UV, NF or UF, Should you buy it online or from showroom?

Or most importantly do you even need a water purifier? Are you sure you are not falling into the marketing gimmicks of water purifier companies?

Few months ago I bought Kent New Grand 8 litre water purifier for my 5 member family, But I advice Kent Grand Plus now as it is the latest model .

kent new grand ro water purifier installed

Before buying it I did a lot of research, so to save some of your time I have gathered all my experience here in this article and I also recommended to read this water purifier buying guide.

You will get all your answers here just stay here with me for 5 mins, if some of your query still remains unsolved, I request you to post them in comment section below, I will answer ASAP.

Recommended Read:

Best Water Purifier In India 2021

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Which is Best RO Water Purifier In India 2021?

But first let’s understand what is RO?

IF TDS greater than 300 use Ro purifier

Please be advised that water purifier does not mean RO (reverse osmosis), People casually use RO term for all the water purifiers which is quite misleading and can be detrimental to health. RO is just a technology from various type of technologies from water purifiers or you can just consider RO as an one type of water purifier from RO, UV, UF, NF and gravity based water purifier.

And everyone does not need to buy the RO Technology!

What is RO Technology?

Ro semi-permiable membrane

RO (reverse osmosis) is a water purification process for treating heavily contaminated and salty water (mainly invented for marines living on ship to make the ocean water drinkable) in this water passes under high pressure through semi-permeable membrane with pore diameter 0.0001 micron which allows only water molecule to pass through it and impurities such as heavy metal, rust, mud, sand, chlorine, bacteria etc. and essential minerals naturally present in water such as Ca, Mg, K and are good for our health are also filtered out with impurities and are excluded with waste water that comes out of RO purifier.

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Who Should Use a RO Water Purifier?

Buy an RO Technology when your drinking water TDS level is greater than 300mg/l

  1. When TDS level is greater than 300mg/L.
  2. If you have hard and salty drinking water in your locality.
  3. If the municipal water you receive has high content of chlorine.
  4. If you have the yellow and foul smell water from well or bore-well in your area.
  5. Use RO if Industrial and polluted water contains harmful chemical such as Lead and Arsenic.

What is TDS and How to measure it?

Total dissolved solids (TDS) as the name represents it is the measure of total dissolved inorganic and organic substances present in water such as salt, sand particles, chlorine, arsenic, lead and all the essential water minerals also such as potassium, sodium, magnesium. So we measure how much of this solid particles are present in per litre of water. Such as if the TDS is 900mg/L, it means 900 mg of impurities+minerals are present in per L of water.And it can be measured with a simple TDS meter which one can simply buy online for under Rs 250. Just dip it in a glass of water you want to test and switch it on, it will show you the reading. Read more on how to measure TDS?

But the question arises,

How much TDS is bad and how much is good?

Acceptable TDS for drinking water in IndiaAccording to WHO and Bureau of Indian Standards (BIS) upto 500mg/L TDS is acceptable and 300mg/L is considered ideal for drinking water.So if you measure your water TDS and it comes out to be more than 300mg/L then you should use the RO purifier and for other reasons mentioned above. and for TDS lower than 300mg/L there are other purification technologies like UV (Ultraviolet rays), UF (Ultrafiltration) and NF which we will discuss later in this article.

Now let’s see some of the best water purifiers in RO technology in India 2021 below.

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Kent New Grand vs Kent Grand Plus vs Kent Grand Star – Best Water Purifiers in RO

Main Difference b/w Kent Grand, Kent Grand Plus and Grand Star.

Kent Grand Plus also features in Top 10 Amazon Bestseller Water Purifier list.

Most Popular

kent new grandView on Amazon
Kent New Grand


kent grand plusView on Amazon
Kent Grand Plus

kent grand starView on Amazon
Kent Grand Star

8 Litre Storage Capacity, 20L/H purification Capacity9L, 20L/H9L, 20L/H
Sediment, Carbon Block Filter, UF & Post CarbonSame as Kent GrandSame as Kent Grand
Dedicated UV ChamberDedicated UV Chamber + UV LED in storage Tank for filtered stored water to kill bacteria if the water is stored for too longSame as Grand Plus
Yes Filter Change and UV Fail Alarm AvailableYesYes
Save Water Technology: It uses a computer controlled process which automatically washes the membrane which helps more water to pass into the membrane which increases the % of filter water from 20% to 50% and the waste water is stored in separate storage tank from where it can be used for mopping and cleaning purposes.Save Water Technology + Zero Water Wastage Technology: In this waste water is pushed back into the overhead tank through a powerful pump already installed in water purifier even if the tank is on 10th multi-story building, where it is diluted with the fresh water.Same Save Water Technology + Zero Water Wastage Technology as in Grand Plus
Transparent BodyTransparent BodyNon-Transparent Body, Digital Display (We don’t recommend this, it just adds up to cost, not a necessary feature.)
Grand NewGrand PlusGrand Star

Difference between Kent Ace vs Kent Pearl vs Kent Ace Plus

View on Amazon
Kent Ace

View on Amazon
Kent Pearl

View on Amazon
Kent Ace Plus
8 Litre Storage and 15L/h Purification Capacity8L Storage, 20L/h Purification Capacity8L Storage, 15L/h Purification
Sediment, Carbon Block Filter, UF & Post CarbonSame as Kent Ace and Kent GrandPost Carbon Filter Missing
Dedicated UV ChamberDedicated UV ChamberOnly In-Storage-Tank UV Disinfection
Yes Filter Change and UV Fail Alarm AvailableYesOnly Filter change Alarm because no dedicated UV Chamber
NO Save Water TechnologySave Water Technology + Zero Water Wastage TechnologyNO Save Water Technology or Zero Water Tech
NO Transparent BodyTransparent and Detachable Water Storage Tank for easy cleaningTransparent Body
Kent AceKent PearlKent Ace +

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Key Features in Kent Grand Series

  • 7 Stage Purification Sediment Filter, Activated Carbon Filter, UF, RO, Manual TDS Controller, UV, Post carbon filter. See the purifier working to know what these filters are.
  • Storage Capacity: Kent Grand (8L), Grand Plus and Grand Star (9L)
  • Purification Capacity: up to 20 litres/hour, Duty cycle- 100L/day
  • Best suited for borewell, ground water with TDS over 300mg/l, industrial area, high Chlorine water.
  • Filter Change Beep Alert and UV Fail Alarm.
  • Zero Water Wastage Technology (Only In Grand Plus and Grand Star not in Kent Grand).
  • Save Water Technology: Recovers more than 50% of water.
  • Automatically shuts off when storage tank is full, saves electricity.
  • Automatic cleaning, rinse of Ro membrane which increases the life of membrane and reduces the wastage of water.
  • TDS Controller to retain essential minerals present in water.
  • Body made of ABS Food Grade Plastic
  • Built-in SMPS electronic circuit to handle a wide voltage range (100 – 300 Volts).
  • 1-year warranty plus 3 years free service worth RS 3000.
  • Best Water Purifier for home in India 2021
  • High quality certification by CE, NSF and WQA.
  • Kent Grand Plus PDF manual.
kent grand plus best ro purifier
Kent Grand Plus
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  • Best for all sources of water (but save money if TDS of your water is less than 300mg/L, RO is not necessary if TDS<300, Use UF+UV Instead).
  • Activated carbon removes foul and smell in water and improves the taste of water.
  • Automatic Rinse of RO Membrane for better filter life.
  • Zero Wastage (No wastage of water) and Save Water Technology (recovers more than 50% of water).
  • In-tank UV LED for killing bacteria in long stored water.
  • No purification through chemical, No artificial taste.
  • Filter change & UV fail alarm.
  • TDS Controller for retaining essential minerals.
  • 8L/9L storage, good for 5-10 members family.
  • 1 Year Warranty + 3 Years free service worth rs 3000.
  • Best Water Purifier for home in India 2021


  • No such demerits but a bit costly.

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Why Choose Kent Grand Plus Over Grand New and Grand Star?

Kent Grand Plus which is best water purifier in India has 7 stage purification mechanism with TDS controller which not only highly purifies the water but at the same time prevents essential minerals present in water good for our health.

Kent Grand series are all similar with few differences but we recommend Grand plus because it has ZERO WASTAGE WATER TECHNOLOGY which you you will not find in Kent Grand New because Grand Plus is the latest and Upgraded model of Kent Grand New.

If you are purchasing online you can get confuse that Kent Grand New has more reviews and ratings than Kent Grand Plus, this is because Grand New has been since 2017 or 2018, people are reviewing since then but Grand Plus is the latest model and has been recently added in the e-commerce sites listings.

And we don’t recommend Grand Star because digital display is unnecessary and it just adds up to more cost and further there has been many complains from customers display not working properly and getting defective soon. Some time RO may be working perfectly but it may be showing TDS levels high (like in below image).

Kent Grand star digital display
Kent Grand Star Faulty Display
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Grand Plus Design and Working

Kent Grand water purifier working

Stage 1: Raw water is passed through the sediment filter for removing Sand and Dirt and other inorganic impurities.

Stage 2: Then Passed through Activated carbon filter where other organic impurities like chlorine, etc gets filtered out by sticking on carbon filter which removes the foul smell of water and makes the water taste better.

Stage 3: Then One stream of water is pushed into the RO membrane where the water is passed 0.0001 micron diameter pores, where only water can be passed through these pores and all other organic impurities such as heavy metal Lead and arsenic and salt from hard water are left behind.

Stage 4: The other stream is passed through UF membrane (pore size 0.01 micron) here organic impurities and heavy metals are filtered out but as the pore sizes are greater than of RO membrane, essential minerals good for our health are not filtered out.

Stage 5: After this TDS controller is regulated in such a way to mix water form RO membrane and UF membrane filter that it achieve the desired TDS that you want.

Stage 6: Then filtered water is passed through UV chamber, where Ultra-violet light kills the germs and bacteria present in water.

Stage 7: Then water is passed through another small post-carbon filter to improve the taste of water again because water coming from UF filter will still have some still some chlorine left.

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▼ Kent Grand - Frequently Asked Questions (FAQs)

Will I get Installation and Warranty if I purchased Online?

Yes, After purchasing online you will receive a call within 1 or 2 days form the respective company like in this case from kent on your registered mobile number with e-commerce site, even if you miss the call they will call you again and you can call them directly on their customer care number (+91 9278912345, 9582-123456). They will send the installation professional and installation will be free of charge.

For Warranty, you have to just keep safe the bill received from amazon or flipkart and show that while you want to claim the warranty.

Kent gives 1 year warranty, if any filter or any other thing is not working they will replace it for free. And also extra next 3 years service is also free.

What is Annual Maintenance Cost (AMC) for Kent Purifiers?

AMC is around Rs 3000 – 4000 for 12 months. It depends on filters if all filters need to change then it may cost Rs 4000, like in my case my other filters were in good condition only RO membrane was not working so it cost me only Rs 2000.

Does Kent Grand Plus have auto-shut off available?

Yes, when the storage tank is full it is switched off automatically and does not consumes electricity, when you take a glass of water from it, the purification is automatically started again to fill the storage tank and then again switched off automatically.

What is Kent Customer Care Number/Toll free No.?

+91 9278912345, 9582-123456, email at service@kent.co.in

What is the Dimension and Weight of Kent Grand Plus?

20*15*6 inch (H*W*D), 8.4 Kg

What is the difference between kent grand and kent grand plus and Grand Star?

What is the difference between kent grand and kent Pearl and Kent Ace Plus?

Will the installation be provided in remote area?

Yes, you can request a free product demo on Toll Free No. +91 9278912345, 9582-123456

Kent Grand UV chamber is made of stainless steel or aluminum?

The UV chamber is made up of Stainless Steel.
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Eureka Aquaguard Aquasure Delight vs Amaze vs Smart Plus

There is No actual difference between Aquaguard Delight, Aquaguard Amaze and Aquaguard Smart Plus. The only difference is in Design, color and release date. All the other features are same. These series does not contain UF (Ultra filtration) filter and active copper cartridge like aquaguard Enhance or their other higher end series.

aquasure delightView on Amazon
Aquaguard Delight RO+UV+MTDS


aquasure amaze purifierView on Amazon
Aquaguard Amaze RO+UV+MTDS

aquasure smart plusView on Amazon
Aquaguard Smart Plus RO+UV+MTDS

Released May 2019Aug 2019May 2018
Shiny White and Black colorComplete Carbon BlackComplete Shiny Black
Sediment Filter, Chemi Block, RO, UV, MTDS, Post CarbonSameSame + Mineral Cartridge
Transparent Detachable Storage TankTransparent Detachable Storage TankWater level indication, Non-detachable Tank
LED indication and AlarmSameSame
Aquasure DelightAquasure AmazeAquasure Smart Plus

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Key Features Of Aquaguard Delight and Amaze

  • 5 Stage Purification: Sediment Filter, Chemi Block, RO Membrane, UV Disinfection Chamber, Post Carbon.
  • 7L Storage Capacity
  • 15L/Hour Purification Capacity, 6000L long lasting (1 year) Cartridge life
  • Best for Muncipal, ground and borewell water or water TDS with over 300mg/l.
  • Smart design and led indication for tank full and purification indication and alarm for UV fail.
  • Manual TDS controller (MTDS) for adjusting water TDS level.
  • Saves energy by automatically powering off once the water tank is full.
  • Dispenser Tap for Dual flow (in delight and amaze), Simple tap in smart plus.
  • Power adapter for handling voltage fluctuation.
  • 1-year warranty.
  • Budget Best Water Purifier in India 2021.
Aquaguard Aquasure delight
Aquaguard Delight RO+UV+MTDS
Check Amaze Price


  • Affordable Price
  • 5 stage purification ensures healthy water.
  • Automatic Energy Saving, requires only 45W (Same power required for tubelight)
  • Sleek, Compact, Attractive design.
  • Dedicated UV disinfection chamber (kills bacteria) with UV fail alarm.
  • Manual TDS controller.
  • Smart design and smart LED indicator.
  • 7L storage, best for 4-8 members family.
  • Budget Best RO Water Purifier for home use in India 2021


  • Aquaguard is a trusted company but No International certification.
  • Power adapter outside body
  • No filter change alert/alarm

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Why Aquaguard Delight/Amaze is the Affordable Best Water Purifier 2021?

Though all three Aquasure Delight, Amaze and Smart plus have same features with minor differences in design we recommend you to buy Delight or Amaze rather than Smart Plus because Delight and Amaze are the latest version and released after Smart plus, Moreover Smart plus uses mineral cartridge to add mineral artificially through chemical balls, whereas, Delight and Amaze uses Manual TDS control to retain the essential minerals and Post carbon filter instead of mineral cartridge to improve taste of water.

The filter cartridges are designed as per the latest standards in industry to last upto 6000 litres. Suppose each member drinks 3L water on daily basis, so for a 5 member family daily consumption comes to 15L/day. Multiplying 15L with 365 days it comes to 5475 litres, so filters can last upto slightly more than a year. So easily suitable for 5-7 member family.

Further, it is very easy to use, you don’t have to take care of switching the plug on/off, you can leave the switch always open, it automatically cuts the power when tank is full and starts automatically at the time of purification and tells you through LED indicators if it is in operation or the water tank is full, it can also be used with invertor connection because it only requires 45W power, thus a best RO water purifier under budget.

And the UV lamp has a life of 8000 burning hours and comes with a beep alarm to notify you at he right time if anything is not right with UV Lamp so to protect you from bacteria and virus in drinking water.

Aquasure Delight is from the leading Aquaguard company, most preferred brand for water purifiers in India which is known for its quick customer and after-sales service with a large service network spread over in 1500 cities thus a best water purifier in India.

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Delight/Amaze Working and who should buy this?

The working of Aquaguard Delight is as same of Kent Grand Plus Working with only ultrafiltration (UF) stage missing that’s why we recommend using a Pre-filter with it so if the turbidity in your water is high it does not reaches in end filtered water.

Who Should use aquaguard Delight/Amaze?

Aquaguard Delight is best water purifier for TDS of 300mg/L-500mg/L or if you are recieving muncipal water, that has less dissolved impurities.

If TDS of your water is more than 600mg/L or if you are confirm that your water source is contaminated with Arsenic and Lead you should not opt for this purifier, kent grand plus or aquaguard enhance will be a good fit for you. Because after some percentage of water is bypassed through TDS controller (MTDS) there is no UF filter between MTDS and UV filter so some of the dissolved organic impurities may pass through it in filtered water that alone sediment filter won’t have been able to filter out.

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▼ Aquaguard Delight/Amaze - Frequently Asked Questions (FAQs)

What is the difference between Aquaguard and Aquasure?

Both Aquaguard and Aquasure are from the same company Eureka Forbes. Aquasure Series is their affordable series built for audience who want only neccessary features so that RO water purifier can fall into their budget, whereas Aquaguard Series has some extra features like UF filter, Mineral Guard technology and Active copper cartiridge, so a little costly than Aquasure Series.

Will I need Booster Pump for this?

You don’t need any extra booster pump for this, it already comes with booster pump installed inside the purifier.

How is the installation request made, If purchased online?

A aquaguard representative will call you by himself in the next two days, if you don’t receive the call, you can call them by yourself also on their toll free no.- 18602661177 OR 7039883333.

Is there a need to install pre filter ? Will I get pre filter with this purifier?

Pre-filter is recommended if your water TDS is more than 900mg/L, It will improve the life of other filters and RO membrane in water purifier.
Pre-filter does not come with water purifier by default, you will be asked if you want to install a prefilter when call for the installation comes.
Check Delight PriceCheck Amaze Price

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Eureka Aquaguard Enhance RO + UV + UF + MTDS vs Enhance RO + UV


Aquaguard Enhance RO+UV+UF+MTDSView on Amazon
Aquaguard Enhance RO+UV+UF+MTDS

eureka_forbes_enhance Ro+UV+mineral guardView on Amazon
Aquaguard Enhance RO+UV

Released Aug 2018May 2017
7 Litre Storage Capacity, 15L/H purification Capacity7L, 15L/H
Active Copper Cartridge, i-Filter (Sediment Filter), Chemi-Block (Pre-Carbon Filter), Mineral Guard, RO, UV, UF, MTDSI-Filter (Sediment Filter), Chemi Block (Pre-Carbon Filter), Mineral Guard, RO, UV, Taste Enhancer (Mineral) Cartridge, Biotron Tech
MTDS (TDS regulator controller) helps to retain essential minerals present in water naturally.Taste Enhancer (Mineral cartridge) adds minerals artificially through small calcicum and ceramic balls
Smart LED indicator indicates purification is on, Filter Change and UV Lamp indication, Tank Full, Low water Pressure, any error with purifier with the help of different LED changing colors so that you can call for service.Same
No save water technologyNo save water technology
Detachable Transparent Storage TankSame
Enhance RO+UV+UF+MTDSEnhance RO+UV

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Key Features in Aquaguard Enhance Series

  • 7 Stage Purification: Sediment (i Filter), Activated Carbon Cartridge (Chemi-Block), RO, Mineral Gaurd and TDS Controller, UF, UV, Active Copper Cartridge.
  • 7L Storage Capacity
  • 15L/Hour Purification Capacity, 6000L and 1 year Cartridge life, can be increased to 2 years if Pre-filter used and if TDS of source water is between 300 – 500mg/l
  • Best for borewell, ground water or water TDS with over 300mg/l.
  • Smart LED indication for Filter and UV Change.
  • Active Copper Cartridge for boosting immunity, strong bones, regulating blood pressure etc.
  • Mineral guard and Maual TDS controller for retaining essential minerals and attaining desired TDS.
  • Automatically On/off depending storage tank is full or empty, saves electricity.
  • Dispenser Tap for Dual flow.
  • Body made of ABS Food Grade Strong Plastic
  • Built-in SMPS electronic circuit to handle a wide voltage range (100 – 300 Volts).
  • 1-year warranty.
  • Best Water Purifier in India for home use.
Aquaguard Enhance MTDS ro water purifier
Aquaguard Enhance RO+UV+UF+MTDS
Check Price


  • Suitable for all sources of water
  • Chemi-block removes foul smell, chlorine in water and improves the taste of water.
  • Active Copper Cartridge infuses Copper ions with essential minerals, boosts the immunity.
  • Compact, Attractive design.
  • Dedicated UV chamber (8000 hrs UV lamp life) to kill bacterias.
  • Manual TDS controller help achieving desired TDS and retaining minerals.
  • Smart LED indication for filter and UV change.
  • 7L storage, good for 4-8 members family.
  • Best RO Water Purifier for home in India 2021


  • No International certification Such as NSF and WQA.
  • Power adapter helps in voltage fluctuation but is given outside the water purifier body

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Why Aquaguard Enhance is in the Best Water Purifier List?

Though it has less storage capacity of 7L in comparision to Kent Grand Plus (9L) but if your family is not too big 7L with 15L/h purifying capacity is the sufficient and makes it compact, occupying less space on the wall.

What makes it a best RO water purifier and differenciates it with Kent Grand is the presence of Active Copper Cartridge in the place of post carbon cartridge which works same as post carbon improving taste and smell of water but with added copper ions to boost your immunity and polishes the water for a sparkling look.

The rest is as same of Kent Grand Plus but it does not comes with any ZERO Water Wastage Technology, so you will have to save the waste water for watering plants or mopping floor or cleaning utensils.

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Aquaguard Enhance Design and Working

Aquaguard enhance Working

The working of Aquaguard Enhance is as same of Kent Grand Plus Working 7 stage purification with manual TDS controller, the only difference is in the end stage kent uses post-carbon filter and here aquaguard enhance uses Active copper filter which serves the same purpose as post-carbon filter of improving the taste of water but with added copper ions good for health.

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▼ Aquaguard Enhance - Frequently Asked Questions (FAQs)

What is Chemi Block, I-filter and Mineral Guard Technology?

Chemi block is same as pre-carbon filter which helps in removing dissolved organic impurities, foul smell and improves the taste of water.

i-filter is the sediment filter to filter out sand and dust particles.

Mineral Guard stops the organic impurities and lets the essential minerals present in water pass through it so you get the mineraled water.

What is MTDS or TDS regulator or controller?

MTDS is the TDS regulator same as in kent purifiers which helps in achieving the desired TDS level good for health (b/w 100-300 mg/l). Though it is written on water purifiers manual TDS control it does not mean that it is something or some setting you can control from outside, manual TDS is set up inside the purifier by the service guy at the time of installation, so tell him what TDS you want between 100-300 mg/L, usually they set it up to 150 mg/L. To know more see how TDS controller works.

What is Aquaguard Annual Maintenance Cost (AMC) or Filter Replacement Charges?

Installation, service and filter replacement is totally free till 1 year warranty period. AMC costs around Rs 4000 for 12 months and around Rs 7000 for 24 months, If you opt for annual maintenance during festival offers, you can get 500 to 1000 rupees discount. Life of filters are 6000 litre or 1 year. So you need to change filter depending on your daily consumption.

Does aquaguard enhance have Filter Change And UV Fail Indication?

Aquaguard enhance led indication list

UV chamber is made of steel or Aluminium?

It is made of steel.
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Havells Max Alkaline vs Havells Max vs Havells PRO

Difference b/w Max Alkaline, Max and PRO.

Havells max alkaline RO water purifierView on Amazon
Havells Max Alkaline


havells max Ro purifierView on Amazon
Havells Max

Runner Up

Havells pro RO purifierView on Amazon
Havells PRO

7 Litres Storage Capacity, 15L/H purification Capacity7L, 15L/H7L, 15L/H
7 stage purification: Sediment Filter, Activated Carbon Cartridge, RO, UV, Mineral Cartridge, Alkaline Taste Enhancer, Revitalizer CartridgeAll Same but instead of alkaline taste enhancer, Standard taste enhancer6 stage: Standard taste Enhancer, No Revitalizer Cartridge, Rest same filters
Dedicated UV ChamberSameSame
No sound alarm, it indicates through Power button, blinking if UV or pump fails and purification will stopSameSame
It uses Mineral cartridge to add minerals, whereas, Kent and aquaguard uses TDS regulator to retain minerals.Same Mineral cartridge, No TDS controllerSame
No Save water Tech like Kent, you will have to use waste water for mopping floor or watering plants.SameSame
Non-Transparent Deatachable Tank, so you can not check water level in storage tank from outside. Though it indicates if the tank is full or filling by LED light, If the tankfull icon glows solid that means tank is full or if it is blinking it means water is filling. Or you can see the water level by removing top lid.SameSame
Havells AlkalineHavells MaxNA

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Key Features Of Havells Max

  • 7 Stage Purification, 100% Water Passes Through RO & UV.
  • 7 Litres Storage Capacity, 15 litres/hour purification capacity.
  • 6000L (1 year) long Cartridges life, Must replace mineral and Taste enhancer cartridge after 1 year.
  • Suitable for all types of water sources.
  • Advanced Automatic lighting Alerts for tank full, purification process, low water pressure, self-diagnostic, and error alerts for UV, SV, and pump failure.
  • Voltage Fluctuation Protection:Automatically shuts off if the voltage is below 170V or goes above 330V.
  • Compact visionary design with 3 type mounting (flat, corner mounting and Table Top).
  • Soft-touch (smooth rotate) tap with deatachable tray below to keep glass.
  • Mineralz (mineral) cartridge for adding minerals and correcting the ph value of filtered water through RO membrane.
  • Revitalizer cartridge breaks the water molecules into much smaller pieces for better and quick absorption of water into the body.
  • Contamination proof tank lid for preventing dust and deatachable storage Tank.
  • 1-year warranty.
  • Smartly designed best RO Water Purifier.
havells max RO online pprice
Havells Max RO+UV
Check Havells Max Stock


  • 100% water passes through RO membrane (but only helpful if you are living in an industrial area or your source of water contains toxic heavy metals like arsenic and lead.)
  • Excellent customer service, Havells is a old and well know brand for its consumer electronics products. Quick response, quick resolution.
  • Revitalizer cartridge(Not in Havells PRO) helps in better mineral absorption and hydration.
  • 7L storage, best for 4-8 members family.
  • Compact and beautiful design.
  • Advance alert system for any error or fault in purifier, it will automatically stop purifying.
  • Only 45W power required, saves electricity.
  • Voltage Fluctuation Protection operates b/w 170V-330V.
  • Automatic (on/off) power cut when tank is full, saves electricity.
  • Ingress tank cover protects water filled in storage tank.
  • Attractive, compact best Water Purifier for home in India


  • Non-transparent storage Tank.
  • NO filter change alarm.
  • Must replace mineral and taste enhancer cartridge after 1 year.

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Why to Choose Havells Max over Havells Alkaline?

Scientifically the ph of drinking water should be between 6.5-8.5, but recently there has been trend of alkaline water that it is best for health but there has been no scientific proof that if you should not drinking acidic water then you should drink alkaline water that is totally a myth.

Havells Alkaline adjust the ph of water b/w 8-10, usually around 9, that is out of the recommended range (6.5-8.5) for drinking water and moreover it adjust the ph chemically, it is not natural. So Alkaline filter is not a must then why to add more to the cost.

Whereas, Havells max adjust the ph through standard mineral cartridge and Activated carbon filter layer in taste enhancer, its ph value comes in recommended ph range, making it a best water purifier for home use.

You can opt for Havells PRO also if you want to save some more bucks because Revitalizer Cartridge has some benefits but it is also not a must.

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Havells Max Working

Stage 1 (Sediment Filter): Filters out dust, clay, sand, silt and other suspended impurities.

Stage 2 (Activated Carbon Filter): Activated carbon adsorbs dissolved organic impurities, chlorine, other impurities on its surface thus also removes foul smell in water if any and improves taste of water.

Stage 3 (RO Membrane): Water passes through very tiny pores of 0.0001 micron in diameter, thus all the impurities and even essential minerals are filtered out, thus a best RO water purifier.

Stage 4 (UV Chamber): then water passes through Ultraviolet (UV) Disinfection Chamber where UV light kills the bacterias and viruses present in water.

Stage 5 (Mineral Cartridge): Mineral cartridge has different layers of ceramics, stones and calcium balls. As the minerals are also filtered out through RO membrane, mineral cartridge adds essential minerals such potassium, calcium, magnesium, sodium etc when water passes through these layers.

Stage 6 (Taste Enhancer): Taste enhancer is like post carbon filter it improves the ph and taste of water and provides the water a sparkling texture.

Stage 7 (Revitalizer Cartridge): Breaks down water molecules and makes them biologically active for better absorption and hydration in human body.

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▼ Havells Max - (FAQs)

What is Revitalizer Cartridge?

Revitalizer Cartridge is just like aquaguard Biotron technology, it breaks down the cluster of water molecules into smaller clusters and mekes them biologically active which helps in improving ph, better absorption of water by our body and quick hydration.

Havells Water Purifier Toll Free Number/Helpline No.?

1800 11 0303, 1800 103 1313, 9152007558, customercare@havells.com

Does Havells Max has TDS controller(MTDS)?

No Havells Max does not have TDS controller, instead it has Mineral cartridge.

Does Havells Max have UF Filter?

No need of UF filter in Havells Max as 100% water passes through RO membrane. UF filter has larger pore diameter than RO pore dia, so no use of UF filter when all the water passed through smaller dia than that of UF.

In Havells Water Purifier UV Chamber is made of Aluminium or Stainless Steel?

It has dedicated UV chamber made of stainless steel and 8000hrs of UV lamp life.

What is Annual Maintenance Cost(AMC) of Havells water purifiers?

It is same as of Kent and Aquaguard Rs 3000-4000 for 12 months.
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Blue Star Aristo RO + UV Water Purifier

View BlueStar AristoView BlueStar Aristo

Note: Not recommended if your water TDS is below 300mg/L, Because 100% water passes through RO membrane and TDS becomes very low if the orignal TDS is already low, very low TDS water is not good for health.

Key Features of Bluestar Aristo 7 Litre

  • 6 Stage Purification Pre-Sediment Filter, Activated Pre-Carbon Filter, Sediment Filter, RO Membrane, Post Carbon Filter with Aqua taste Booster, UV Lamp.
  • 7 litre Storage Capacity, Purification Capacity: up to 12 litres/hour
  • 100% Double Layered RO(reverse osmosis) and UV(Ultraviolet) purification
  • Best suited for high TDS source of water like borewell and ground water.
  • Low water pressure and UV fail Alert.
  • Purification and Tank full Indication.
  • Copper impregnated activated carbon filters.
  • Power consumption 36W, Automatically power cut.
  • ABS Food Grade Plastic Body
  • Aqua Taste Booster inside post carbon filter with anti bacterial properties which maintains optimum pH level, removes smell, odour, and improves the taste of water.
  • Must replace post carbon filter every year.
  • Child Lock Safety button.
  • Best Water Filter in India 2021
  • 1-year warranty, Free installation irrespective of purchased online or from dealer.
bluestar aristo purifier
BlueStar Aristo
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  • You get pre-filter in the box, no need to purchase separately.
  • Best for high turbidity water like borewell and ground water.
  • Copper impregnated activated carbon filters removes foul odor and smell in water and kills bacteria too.
  • Large Capacity 10 inch filter for efficient purification.
  • Double layered RO UV purification beneficial for TDS above 900mg/L.
  • Child lock function on tap ensures water is not wasted.
  • Affordable RO purifier in budget.
  • Filter change & UV fail alarm.
  • Aqua taste booster (ATB) uses calcite media to maintain ph level.
  • 7L storage, good for 4-8 people.
  • 1 Year Warranty + world class service.
  • Budget Best RO Water Purifier in India 2021


  • Must replace post carbon filter every year.
  • Risk of low TDS(means lack of minerals), that’s why not recommended if TDS of source water is below 300mg/L.

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Why Aristo is a best water purifier and how it works?

Those who have tight budget and want to buy branded Ro purifier BlueStar Aristo is your water purifier. It comes with pre-sediment filter that in most of the other purifiers you have to buy it separately.

In its 6 stage purification water is first passed through prefilter for removing suspended solid.

Then passed to Activated Pre Carbon Filter which adsorbs dissolved organinc impurities on its surface like chlorine, flouride and also removes the smell, yellowishness and odor.

Then passed through Finer Sediment Filter of less pore diameter to remove finer dust, sand particles and cyst.

After that water is passed through double layered RO membrane thus removing 96% impurities, but note as RO also filters out essential minerals also water becomes slight acidic here.

Then water is passed through Copper Impregnated Activated Carbon Filter which has antibacterial properties and aqua taste booster inside it for rebalancing the ph of water as after RO membrane water became slightly acidic, so this fixes that.

In last stage water passes through UV disinfection chamber where bacterias and viruses are killed.

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▼ Blue Star Aristo - (FAQs)

Does Blue Star Aristo has auto shut feature?

Yes it shuts down automatically when the storage tank is full.

Does Aristo have booster pump or booster motor?

Yes, but still some water pressure needed else it will indicate low water pressure.

Does Blue Star Aristo retains Essential Minerals?

No, that is why this purifier is only recommended for High TDS water.

Is installation free and How to install Blue Star Aristo water Purifier?

Installation is free and like every other purifier you will receive an installation call within 2-3 days doesn’t matter if you have purchased online or from store. And you can reach out bu yourself also on their toll free helpline number 1800 209 1177

What is the ph of water after filteration from Aristo

Between 6.5 to 7

Does Aristo have TDS Controller?

No and no mineral cartridge either, it just have Aqua taste booster for maintaining ph.
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Faber Galaxy Plus RO+UV+UF+MAT Water Purifier

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Faber Galaxy Plus Key Features

  • 8 Stage Purification Pre-Sediment Filter(20 micron pore), Sediment Filter(5 micron), Activated Pre-Carbon Filter, RO Membrane, Post Carbon, MAT(Mineral Cartridge), UF Membrane, UV Lamp.
  • 9 litre Storage Capacity, 13.5 litres/hour Purification Capacity
  • 100% water passes through RO and UV.
  • Suitable for all sources of water.
  • High capacity RO membrane that can remove high TDS up to 2500 PPM.
  • External pre-filter comes by default inside the box.
  • COPPERGUARD TECHNOLOGY(does not add copper ions) for removing anti-fouling agent and enhancing the taste of the water.
  • Germ block tank for protecting stored water.
  • ABS Food Grade Plastic.
  • Auto power cut when tank is full.
  • Must replace MAT filter (Mineral cartridge) every year.
  • Great Deal Best Water Purifier in India 2021
  • 1-year warranty, Free installation.
  • Faber Galaxy Plus PDF manual.
Faber galaxy plus ro purifier
Faber Galaxy Plus
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  • No need to buy Prefilter separately.
  • Best RO water purifier under 10,000 Rs.
  • 9L, High storage capacity, suitable for upto 10 member family.
  • High Capacity long lasting RO membrane.
  • 8 stage purification RO+UV+UF+Mineral under 11,000 rs.
  • Adds back mineral with mineral cartridge.
  • Affordable RO purifier in budget.
  • Purification, tank full and low pressure indicator.
  • COPPERGUARD TECHNOLOGY provides the sparkling texture to water
  • Compact and shiny black Body.
  • WQA certified.
  • 1 Year Warranty + free installation.
  • Best RO Water Purifier under 10,000.


  • Non-trasparent water storage tank, but tank full indicator.
  • No filter change Alarm.

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Why Buy Faber Galaxy Plus Purifier?

You get almost what you need in a best RO water purifier in just under 11,000 rs. You get free pre-sediment filter with it, world class quality Ro membrane plus copper guarded mineral cartridge (MAT).

Complete 8 stage purification with 9 litre max storage just under 11,000, Faber is giving you a deal best water purifier that you may hardly get with any other brand.

Faber Galaxy Plus Specification:

Storage Tank9 Liters
Total Stages of Purification8
Stage 1 (External Filter)Sediment Filter – 1 (20 micron)
Stage 2Sediment Filter – 2 (5 micron)
Stage 3Pre Carbon Filter
Stage 4RO Membrane – 80 GDP, NSF-58 Approved
Stage 5Post Carbon Filter
Stage 6MAT Filter (with Post Carbon)
Stage 7UF Membrane
Stage 8UV Filter (11 watt UV lamp)
Water Level IndicatorAvailable
Body – Back Plate ColorsBlack – Black

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▼ Faber Galaxy Plus - (FAQs)

Does Faber Galaxy Plus has auto shut feature?

Yes it shuts down automatically when the storage tank is full.

Does Faber Galaxy Plus has Booster Pump?

Yes, but still you need to have some pressure otherwise it will indicate low water pressure.

Does it has Filter Change Alert?

No but you can replace the filter after every year. Toll free/ customer care number 1800-209-3484, email: ks-customercare.in@franke.com

Does it has TDS controller?

No, but it has mineral cartridge to add minerals back.

What is the water wastage for per liter of purification? ?

4 litre water is feeded to produce 1 litre of pure water, the residual water can be used for mopping floor and watering plants.
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HUL Pureit Marvella Sleek Mineral RO+UV+MF+MP Water Purifier

View Pureit MarvellaView Pureit Marvella

Key Features

  • Pre-Sediment Filter, Activated Carbon Filter, Mini Filter (MF), Reverse Osmosis (RO) Membrane, UV Chamber, Micro Filtration (UF) Membrane, Post Carbon Filter, this 7 stage purification is called Germ Kill kit (GKK) by Pureit.
  • 8 litre Storage Capacity, Upto 20litres/hour Purification Capacity
  • 100% water passes through RO and UV purification, removes lead, arsenic, mercury.
  • Suitable for high TDS water like borewell and ground water.
  • Less water wastage, less electricity consumption, recovers 35% of inlet water as purified water
  • 1 year, 6000 litre filter life.
  • DOUBLE PURITY LOCK: Advance Alert warns you 15 days before filter expiry and Auto Shut Off stops water if filter is not changed.
  • Transparent water level and Tank full LED Indication.
  • Mineral cartridge for adding essential minerals such as calcium, magnesium.
  • Power consumption 55W, Input 100-240V, Automatic Switch On/Off.
  • 100% Food Safe, Non-Toxic Plastic
  • Best RO Water Filter in India 2021
  • 1-year warranty, Free installation.
  • Pureit Marvell Sleek PDF manual.
HUL Pureit Marvella Sleek water purifier
Pureit Marvella
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  • 7 stage purification with mineral cartridge under 15,000 rs.
  • 8L storage with high purification capacity of 20L/hour.
  • Advance Led indication for tank full, filter change, UV fail, and any other errors.
  • Compact and light weight (7.3 kg).
  • Mineral cartridge for adding minerals back.
  • Affordable best RO purifier under 15,000.
  • 1 Year Warranty + extraordinary service.
  • Best RO Water Purifier with advance LED indicators.


  • High maintenance cost.

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Why Pureit Sleek is the best value for money water purifier?

Earlier HUL purifier used to have high price but out of the rising competition in water purifier market HUL pureit has to provide best value in affordable price.

In Pureit Sleek you have all the required filters needed like RO,UV,UF and both the Pre and post carbon filter (with mineral cartridge) with 8L storage capacity (best for upto 8 people) just under 15,000 rupees.

And on the tip of iceberg you get an advance LED alert system that ensures you get alert 15 days before your Germ Kill Kit(GKK- all the filters combined) expires and stops the water in storage tank after filter expires, so you don’t drink unsafe water, but also high maintainance cost.

But this advance alert system calculates the filter life on the basis of pump running hours, it does not take into account the quality of water. The purifier alerts you after 315 running hours and stops filtering water after 330 running hours, but suppose if you don’t have that much high TDS water (like 900mg/l) and have TDS around 300mg/L then filter may still be in good condition but it forces you to change the filter before that.

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▼ Pureit Marvella Sleek - (FAQs)

Does Pureit Mavella Sleek has auto shut feature?

Yes, it automatically gets switch off/on when the storage tank is full/empty.

What is Germ Kill Kit (GKK)?

Pureit combinedly call all the 7 stages filters Germ Kill Kit.

Pureit Installation contact details, Toll Free/ Helpline number?

You will recieve the Free installation call within the next 2-3 days of purchase or you can call by yourself on 1860-210-1000, 1860-180-1000, pureit.hul@unilever.com. You can also book a home visit for demo.
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Kent Pride TC RO+UF+TDS controller

Kent Pride TCKent Pride TC

Key Features

  • 6 Stage Purification Sediment Filter, Activated Carbon Filter, UF, RO, Manual TDS Controller.
  • 8L Storage Capacity.
  • 15 litres/hour Purification Capacity.
  • Suitable for all type of water resources.
  • Filter Change Alert System.
  • The purifier gets Automatically shuts off when the storage tank is full.
  • High recovery of water after passing through RO membrane.
  • TDS Controller for maintaining essential minerals present in water.
  • Body made of ABS Food Grade Plastic
  • Built-in SMPS electronic circuit to handle voltage fluctuation (100 – 300 Volts).
  • 1-year warranty plus 3 years free service worth RS 3000.
  • Kent budget Best Water Purifier in India 2021
  • CE, NSF and WQA Certified.
Kent Pride TC water purifier
Kent Pride TC
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  • Mineral RO Technology.
  • Best for TDS greater than 300mg/L-900mg/L.
  • Low maintenance cost.
  • Automatic power supply, can be used with invertor.
  • Water level indicator.
  • RO+UF with Manual TDS controller.
  • Economical RO water purifier.
  • Filter change alarm.
  • 8L storage, sufficient for 4-8 people.
  • 1 Year Warranty + 3 year free service.
  • Kent Best RO Water Purifier 2021


  • No Post Carbon Filter.

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Why Buy Kent Pride 11087 TC?

Kent Pride TC is same as other kent water purifers but with only neccessary feature to make it a best budget Ro water purifer. Like it does not have Zero waste water Technology and No UV Disnfection Chamber and no Post Carbon Filter.

It has booster pump but will still require some inlet pressure, the purifier does not start if inlet water supply pressure drops below 0.3kg/cm².

Reasons to buy: Leakage proof, High storage capacity, fast water purification with 15L/hour capacity, Manual TDS control.

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▼ Kent Pride TC - (FAQs)

Does Kent Pride TC have UV Treatment?

No, It does not have UV disinfection chamber in it.

Kent Pride TC Filter/Cartridge Life?

1 Year or 6000 litre water can be filtered, but I have seen if the water TDS is low, Kent Filter can last upto 2 years.

Does it include Pre Sediment Filter?

No but you can buy it separately, when they call for the installation, Kent customer care number (+91 9278912345, 9582-123456).

Does it have booster pump?

Yes, but you will still need some inlet water pressure above 0.3kg/cm².
Kent Pride TCKent Pride TC

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KENT Superb Star RO+UV+UF+TDS Controller Water Purifier

Kent Superb Star

Key Features

  • 7 Stage Purification Sediment Filter, Activated Carbon Filter, UF, RO, TDS Controller,In-tank , Post carbon filter.
  • 9 litre high Storage Capacity, 20 litres/hour Purification Capacity
  • Real time monitoring and display of purity on Digital Screen
  • Suitable for every water source.
  • Filter Change and UV Fail Alarm and Digital Display for showing everything on Screen.
  • Save Water Technology: Recovers more than 50% of water.
  • Fully automatic operation, with auto-on and auto-off function.
  • In-Built AutoFlushing System and In-Tank UV LED Lamp.
  • Computer controlled operation for enhanced purity and long life.
  • TDS Controller to retain essential minerals of water.
  • ABS Food Grade construction for corrosion free use
  • Built-in SMPS for handling voltage fluctuation.
  • 1-year warranty plus 3 years free service worth RS 3000.
  • Best Water Purifier in India 2021
  • CE, NSF and WQA Certified.
kent superb star water purifier
Kent Superb Star

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  • High storage capacity of 9L.
  • In-Tank UV disinfection protects stored water for long time.
  • See all function of purifier in Real time through digital screen.
  • Auto-wash of RO membrane for longer life and reduced waste water.
  • Recovers up to 50% of inlet water.
  • Automatic shut off/on.
  • Mineral content display, Filter change & UV fail alarm.
  • ABS food grade construction.
  • Compact and beautiful body.
  • 1 Year Warranty + world class service.
  • Best RO Water Purifier 2021


  • There have been complaints about Digital Display.

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Why Buy Kent Superb Star?

Do not get it confuse with Kent Super Star, It has transparent TOP body, but superb star has full covered body.

It has almost all the same features with design changes, save water technology, Digital Display and In-Tank UV disinfection lED instead of a UV chamber. In In-tank UV purification Water is treated with UV in the very last step, wher the water is stored.

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▼ Kent Superb Star - (FAQs)

Does Kent Superb Star have UV Treatment?

Yes, It is made of Stainless Steel.

Kent Superb Star Filter/Cartridge Life?

1 Year or 6000 litre water can be filtered.

Does it include Pre Sediment Filter?

No but you can buy it separately, when they call for the installation, Kent customer care number (+91 9278912345, 9582-123456).

Does it have booster pump?

Yes, but you will still need some inlet water pressure above 0.3kg/cm².
Kent Superb Star

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Aquaguard AquaSure Splash RO+UV+MTDS

View Aquasure SplashView Aquasure Splash

Key Features

  • 6 Stage Purification: Sediment Filter, Chemi Block (Activated Carbon), RO Membrane, UV Disinfection Chamber, TDS controller, Post Carbon.
  • Very Compact with 6L Storage Capacity
  • 15L/Hour Purification Capacity, UPTO 6000 Litre long lasting (1 year) Cartridge life
  • Best for water with TDS with over 300mg/l.
  • Smart energy saving mode automatically turns off power when tank is full .
  • Manual TDS controller (MTDS) for adjusting water TDS level.
  • Protects water purifier from voltage fluctuation.
  • 1-year warranty.
  • Affordable Best Water Purifier 2020.
aquasure splash purifier
Aquasure Splash RO+UV+MTDS
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  • 6 stage purification.
  • Compact and attractive design.
  • Dispenser Tap.
  • Affordable water purifier purifier in budget.
  • Manual tDS control for adjusting desired TDS level.
  • 6L storage, good for 4-6 people.
  • 1 Year Warranty + Aquaguard service.
  • Budget Best RO Water Purifier 2021


  • No filter change Alarm.
  • Non transparent body no water level indicator either.

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Why Aquasure Splash is affordable best RO water purifer?

This Ro purifier costs only around 13,000, Aquasure Splash has all the same filter configuration as Aquasure Delight but to make it more affordable it has been not equipped with any filter change or UV fail Alarm and storage is also 6 litre instead of 7L as in Delight.

It is just one button and very compact water purifier good for 4-6 member family. It takes around 25-30 mins to fill 6ltr capacity which is good enough.

The working is same as of Aquasure Delight, water is passed through sediment filter, then to chemi-block then to RO membrane then water is mixed with water coming from TDS controller and then passed from UV chamber and Post carbon filter and stored in tank.

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▼ Aquaguard Splash - (FAQs)

Does Aquasure Splash Have Water Level Indicator?

No, It does not have any LED indicator nor any transparent body.

Does It has Filter Change Alarm?

No, It does not have any Kind of Alarm, This purifier have been kept very simple to built it in very low cost.

Which Splash Model to buy RO+UV or RO+UF?

We recommend RO + UV, UV will help in killing the bacteria, UF is not needed as 100% water is passed through RO membrane.
View Aquasure SplashView Aquasure Splash

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How to Find a Best Water Purifier for Your Home? – Buying Guide

Below are some quick to the point factors to consider while buying a best water purifier in India, but we have also written a detailed buying guide if you want to know more in deep.

Source of Water, Type of Impurities and TDS Level of Water

First we need to know what kind of water we are getting at our respective homes, then what types of impurities are present in different type of sources, how it affects TDS level then choose the right purification technology according to that.

Below table mentions the different source of water and different impurities found in them.

Source of WaterCommon ImpuritiesTDS Level
Municipal Corporation SupplyVisible impurities: dust particles, rust, etc.

Invisible impurities:
Bacteria & Viruses
Chlorine, bleaching powder

Useful Dissolved Minerals (not impurities):
Calcium, potassium, sodium, magnesium, zinc etc.

approx 300ppm
Borewell/GroundwaterVisible impurities: mud, sand, suspended solid particles etc.

Invisible impurities:
Bacteria & Viruses
Harmful heavy metals and chemical impurities like Lead, Arsenic, Fluoride, Mercury, etc.

Useful Minerals:
Calcium, potassium, sodium, magnesium, zinc etc.

RiversVisible impurities: mud, sand, suspended solid particles etc.

Invisible impurities:
Same as ground water.

Useful Minerals:
Same as ground water

Lake/PondsVisible impurities: mud, sand, algae, etc.

Invisible impurities:
Very high level of Cysts, Bacteria & Viruses, Protozoa, etc.


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Chlorine/Bleaching Powder: You will mainly find chlorine and bleaching powder in municipal supply of water, they are used as chemical disinfectant to kill bacteria and viruses present in filtered water by water treatment plants, it is safe to drink this water but not for prolonged time and moreover the water doesn’t taste and smell that good because of chlorine.

For the municipal water you really do not need a RO water purifier because the municipal water is already treated with coagulation/flocculation, sedimentation, sand filtration and activated carbon adsorption in treatment plant and its TDS level is also kept around 300mg/L, so a UV based Water Purifier or gravity water purifier with some activated carbon filter will be best suitable for municipal water.

Micro-organic impurities such as bacteria, viruses, protozoa, can be found in all sources of water due to rise in water pollution these days and can cause water borne diseases, to prevent this you should use UV equipped Water purifiers.

Heavy Metals like Arsenic, Lead, Mercury are toxic to health these are not found in municipal water but can be found in ground, borewell, lake water espicially if the near water source is exposed to industrial pollution, in this case TDS could range between 400-above 1000mg/l, so the use of RO water purifier is recommended here but with use of mineral cartridge or TDS controller.

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TDS Levels and Type of Purification Technologies in Water Purifiers

If you still don’t know what TDS (Total Dissolved Solid) is, please read we explained it above.

Below Image explains Recommended Purification Technology for different TDS levels.

TDS level VS Water purifier technology

Different water purification technologies in water purifiers

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RO (Reverse Osmosis) Technology, we already explained it above.

Ultra Filtration Technology has larger pore diameter (0.01 micron) than than that of RO membrane (0.0001 micron) and electricity is not needed as it is needed to force water through RO membrane because of finer pores. UF Tech can be used for TDS level below 300ppm, it can not filter out dissolved impurities so that is why UF Filters are recommended for TDS level below 300mg/L. And thus it also retains minerals.

But it is not always used alone in water purifiers for TDS above 300mg/L you should use RO+UF+UV Tech. and for below 300mg/L use UF+UV water purifiers or gravity water purifiers.

Nano Filtration Technology has pore diameter (0.001 micron) between Ultrafiltration and Ro membrane but is not generally used in water purifiers that is why above 300mg/L TS RO purifier is recommended and below 300mg/L UF membrane.

Ultra Violet Technolgy (UV water purifiers) is used for killing bacterias and viruses, so not used alone it is used in RO+UF+UV or RO+UV or UF+UV configuration and also with pre-activated carbon filters.

Gravity Based Purifiers or Non-Electric Purifiers are use for Low TDS water like municipal water or if your ground water has low TDS, this uses gravity for filtration and no electricity is required for this, water is pored from top and it passes downward through sediment filter with the help of gravity into next chamber of activated carbon filter for removing organic impurities and foul odor and smell and then to UF membrane or other taste enhancer cartridge.

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Technical Specifications to Consider

1. Storage Capacity

Water purifiers comes with Storage capacity ranging from 6 liter to upto 12 Liters.

It depends on how much member are in your family or office 6 litre is easily sufficient for 4-6 people, 9 liter is good for below and above 9 litre also.

2. Purification Capacity

It can go from 11L/hour to 20L/hour, purifier with 12L/hour can fill the tank easily in 30 min, generally if the water purifier has more filtration capacity like 20l/h, most probably it is using TDS controller and in case of 11L/h 100% water must be passing through RO membrane that is why it is taking more time.

3. Tank Type

Generally all of the branded purifiers are made of ABS food grade and corrosion free plastic. That is why local purifiers are not recommended they uses cheap plastic and low quaity filters that may actually harm your health, they are just selling the copy of branded purifier.

4. Indicators & Alerts

It is important that you change filter year after year, to facilitate this companies has LED indicators or Beep alarms to indicate that it is time to change filter but if you need a budget water purifier and that purifier doesn’t have filter and UV change indicator no need to worry because even if filter is not working properly you will come to know by the taste and smell of water and keep always a TDS meter (costs around 250 rs) in your home and keep checking water TDS on monthly or weekly basis. If the water smells or if the TDS level is way to above, it’s time for you to change purifier filter.

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5. Mount Type

Most of the water purifiers can be used by mounting on wall or just placing it on table Top. But There are also havells like purifer which can be mounted in the corner of walls.

6. Water Recovery / Water Wastage

When the water is forced to pass through RO membrane, the water that passes out of the membrane and go ahead towards storage tank is called recovered water the water that is left behind and exits outlet is the waste water.

Generally 35% of water is recovered from inlet water that means for 1 litre purified water 2 liter water would be wasted.

But there are purifiers like kent grand series which computer control technology for autoflushing and autocleaning of the RO membrane thus letting pass more water through it, Kent water purifiers claims 50% water recovery.

7. Price

Price may go from 5,000-30,000. But with the fierce competition in market purifer prices have come down just like any other electronic items like mobile and LED TVs.

The price mainly depends on the number of filtration stages it has, means more the cartridges more the cost and if it is equipped with digital display or advance LED indicators the price may go up.

You can get all the neccessary features around 18,000-20,000. But if you need more advance features like digital display and Activated Copper ions technology the prices can go upto 30,000.

Warranty and After Sales Services

It is important to choose right brand for great after sales service because it is not a one time buy product, it will require maintenence from time to time, so you need fast and professional service. All the brands that we mentioned in our water purifier list are from well established, old and big companies mostly having service centre in every prominent area.

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Frequently Asked Questions (FAQs)

What is a pre-filter, Is it necessary, Should I get it Installed?

water purifier prefilters
Kent and Aquagaurd Pre-Filter

When you get a installation call from any water purifier brand you may be asked if you also want to install a pre-filter with your water purifier, so prefilter is a extra sediment filter that does not come inside the box of water purifier you purchased, it is a separate filter (an add-on) that costs around Rs 800, it will not be free.

So you should use it only when your source of water has a lot of dirt or sand particles or other visible impurities like if you are receiving water from overhead tank or bore-well or high TDS more than 900mg/L, Pre-filter helps in increasing the life of main filters (that can cost upto Rs 2000 per filter) present inside the water purifier by filtering those solid impurities by itself. So it better in this case to pay 800 for a prefilter than to pay 2000 for main filter replacement after some time. Main filter has a life of 1 year but a pre-filter can increase its life upto 2 years, that’s why recommended.

But if you are receiving the water from municipal that water already has a TDS of 300mg/L, there will be no need for a Pre-filter in that case.

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Which water Purifier brand offers the best after-sales support and customer care service?

Water purifers requires more cyclic service than your bike or car. That’s why we recommend to buy only branded, old and established companies purifers, like Kent, Aquaguard, Havells etc.You can search for Toll Free number on google for any of the companies and ask them if they have service in your area.

Some of the Major Brands customer care number are given below.

  • Kent: +91 9278912345, 9582-123456
  • Aquaguard: 18602661177 or 7039883333
  • Havells: 1800 11 0303, 1800 103 1313, 9152007558, customercare@havells.com
  • Blue Star Aristo: 1800 209 1177
  • Faber Galaxy: 1800-209-3484, email: ks-customercare.in@franke.com
  • HUL Pureit: 1860-210-1000, 1860-180-1000, pureit.hul@unilever.com

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What is the annual maintenance cost (AMC) for an RO water purifier?

AMC for almost all major brands is same around 4000 rupees. Cost includes replacement of various filters like RO Filter, UF filter, Carbon Filters etc. For Optimum performance one should replace filters every year. But your water TDS is low the use can be extended upto another 6 months.It is advised you keep a TDS meter in your home for monthly check of tour TDS readings of your tap water.

What should be the TDS level of RO Water?

Read all about TDS above.
Acceptable TDS for drinking water in India

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Which water purifier is best for Borewell water?

First Buy a TDS meter irrespective of source of water, if the TDS is below 300ppm go for gravity based purifiers or UF+UV purifiers and if above 300ppm then go for any of the RO purifier mentioned in above beat water purifier in India 2021 list.

What are TDS Controllers / Regulator / Modulators?

RO membrane, with impurities also filters out the essential minerals present in water, which is not good for health. So, to maintain the mineral content in water, inlet water is divided into two streams one is passed through RO membrane and the 2nd stream is passed through UF Membrane (does not filters out minerals) and then to TDS bypass wall which controls how much amount of 2nd water stream should be mixed with Main RO water stream to attain the desired TDS level and amount of minerals in water and improves the taste of water too.

There are other water purifiers also which uses passing of 100% water through RO membrane and uses mineral cartridge to maintain the minerals, but TDS controller is the new and widely prefered technology these days.

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What is Mineralizer / Mineral guard

Mineralizer are the mineral cartridge, inside cartridge there are different layer of minerals stones present in it for adding different minerals in water. One should remember it to change mineral cartridge every year because with time minerals wear out from these mineral stones, otherwise you will be drinking mineral-less water.

Mineral Gaurd is a Technology by Aquaguard that filters out the organic impurities and lets the mineral pass through it, it is same like UF Filter.

How much water is wasted with RO water purifier?

I am getting a non-branded RO at half the price, should I buy?

Strictly NO, Local purifer filter does not work great, they are unable to filter out impurites and bacteria that effectively and stops working within few months. You can see the difference in this video.

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Will I get the free installation and warranty if I buy a water purifier online?

Yes You will get complete free installation and Warranty from the respective brand if purchased online. They call you by themselves for the installation within the next two days or you can call them by yourself also on their Toll Free Number.

Purchase only Amazon Fullfilled/Prime or Flipkart Plus Product, that is the gurantee of authenticity and there will be no issue if you want to return the product.

Benifits of Buying Online:

  1. 30 days return policy, No questions asked
  2. bank and credit card discounts
  3. offers and less price than offline / shops
  4. 100% genuine product from authorized dealers
  5. Free installation by the brand
  6. Free extended warranty at a very low price if any offer
  7. Can Separately purchase extended warranty online
  8. Wide range of water purifiers to select from
  9. read customer reviews and photos and buy confidently

ABS Plastic or Stainless Steel tank – Which is better?

You will be using storage tank to store water, so the longevity, durabilty and most importantly contamination, bacteria and corrosion free matters, Stainless steel with over time may get corrosion and rusted. That’s why ABS FOOD Grade Plastic is used in water purifiers so it may not corrode and also not get funge or algae in it.

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If you want a purifier with all the latest technology and widely trusted go for Kent Grand Plus is our best water purifier in India 2021 and if you want to go with Aquaguard Brand the Aquaguard Enhance is the face against Kent Grand Plus.

Aquaguard Delight and Amaze are our Runnerup and budget water purifiers. And if you want passing of 100% water through RO and water purifier with Mineral cartridge Havells Max is the best choice in this water purifier list.

If you still have any doubt and planning to buy a RO water purifier feel free to ask or comment in below comment section and do read our Water Purifier Buying Guide for more clarification.

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