Best Under Sink Water Filter For Modular Kitchen

When it comes to water purification, there are many appliances available for the home. Among these, wall mounted and table top have gained popularity.

Though these appliances are ideal for Indian kitchen, a wall mounted water purifier might not suit modular kitchen. Due to less space and modern design, homemakers look for stylish alternatives that would enhance their kitchen.

This is where an under sink water purifier suits perfectly. However, a number of alternatives make it difficult to choose the right one.

Therefore, this article provides detailed insight about under sink water purifiers along with its advantages of under the sink water filter and working of under sink water Filter.

The comprehensive buyer’s guide and FAQs provide all the essential factors for you to take note of before making a purchase.

We have also provided a detailed review of the 11 best under sink water ro along with the links to purchase them at Amazon. You will know more about what is under sink water purifier and how does it differ from wall mounted water purifier here.

Top 11 Under Sink Water Purifiers in India

Product (Best Brands)Average User RatingPrice RangeBest Price
Our Choice
5.0/5
Check-Price
five-stage purification
3.3/5
Check-Price
4.1/5
five-stage purification
3.6/5
Check-Price
five-stage purification
Check-Price
The Best Filtration System
4.3/5
Check-Price
The Reasonable Option
2.9/5
Check-Price
The Best Storage option
4.0/5
Check-Price
The Best Advanced Digital Display
3.8/5
Check-Price
Long Service Life
3/5
Check-Price
Water Saver
Check-Price

Advantages of Under Sink Water Purifier

  • Under the sink, water purifiers are ideal for kitchens with a space constraint since they are compact and are installed in a cabinet under the sink. They are space savers as they take up very little space.
  • They do not alter the look of your kitchen in any way as they are kept hidden from the view of people.
  • They come with a faucet that is placed beside the tap on the sink. It prevents creating a mess by spilling water on the floor. You can place the bottle or glass on the sink and wait for it to fill.
  • Apart from the change of the filters, under sink water purifiers need very little maintenance. Thus, the cost of maintenance is less.
  • These water purifiers have a higher purified water delivery rate and can fill a bottle in less than a minute.

Working Of Under Sink Water Purifier

An under sink water purifier works using the same mechanism as any other water purifier. The only difference between the wall mount and under sink water purifiers is that the latter is installed under the sink or counter away from the view of people.

They mostly work using RO or RO+UV purification technology, where the water is made to pass through the RO membrane and then disinfected in the later stage using a UV disinfection column.

Under sink water, purifiers also use sediment and activated carbon as pre and post-filters to remove coarse particles, chlorine, and a bad taste or smell from the water.

Thus, under sink water purifiers works like any other RO, UV, UF, or RO+UV water purifiers to provide you with water that is safe, pure, and healthy for consumption.

Arrangements Which Need To Be Made Before Fitting an Under Sink Water Purifier

  1. Under the sink, Water Purifiers require a separate faucet that needs to be installed on the sink or the kitchen top. A hole has to be made for fitting the faucet on the preferred location. Ensure that the technician drills the hole during the installation; otherwise, you would need to arrange for fitting the faucet on your own.
  2. These water purifiers require a constant supply of running water. Thus, it is important to have a tap under the sink beside the water purifier. If a tap is not present, you will need to call a plumber to arrange a tap with water supply by connecting it to the main tap on the sink.
  3. A power socket is required under the sink since the water purifier needs electricity to operate.
  4. The area under the sink should be kept clean and hygienic.
  5. A proper drainage system is required since there may be water wastage during the purification process. So, the water would require an outlet to escape.

Buyer’s Guide For Under Sink Water Purifier

Water Pressure

You can not wait for ample time to drink a glass of water from a water filter, and so, considering water pressure is essential while buying a water purifier. Also, under sink water filters provide much pressure than conventional ones.

Cartridge life

Every cartridge that is provided with different water filters has a different lifespan. A few cartridges need to be changed every 6 to 8 months while a few cartridges go from 3 years to 5 years.

Though the brand you have chosen provides good cartridge life yet, they may need replacement because of the water quality. Hence, choose a water filter that provides good cartridge life.

Maintenance

It is the prioritized feature to be considered while buying a water purifier. A purifier that is installed must be easy to maintain, easy to clean, and easy to change filters/ cartridge.

Purification Technology

Under the sink, water purifiers use only RO, UV, or both RO+UV/UF technology along with sediment and carbon filters to purify water. Hence, it is important to understand which technology will be most suitable to purify the water supplied to your home.

For this, you need to test the quality of water that is supplied to you.

If the water is hard with high TDS levels, go for an RO water purifier. However, if the water is both hard and also contains high levels of disease-causing germs and bacteria, RO+UV would be the right choice.

Size/Compact Design

Under the sink, water purifiers are placed under the sink or kitchen counter. Thus, ensure that the model has a compact design so that it can easily be installed under the sink without taking up too much space.

This is an important factor, especially in a kitchen that has a space constraint.

Storage Capacity

The water purifier you purchase should have a storage capacity of 7-12 liters. This ensures the ready availability of pure drinking water at all times.

You are provided with water to drink even during electricity shortages.

Installation

The installation of your under sink water purifier must be done by the technician provided by the brand itself.

The installation of an under sink water purifier needs added arrangements, an electric power socket, and a tap with constant water supply should be available under the sink. Thus, these arrangements must be made before the installation of the product.

TDS Controller/ Mineral booster

It is essential to ensure that the RO or RO+UV under sink water purifier that you are about to purchase comes with a TDS controller and mineral booster.

This controls the TDS levels in the water and retains the essential minerals which are often removed during RO filtration. They also maintain the pH of the water, and enhance the taste, enriching the drinking water experience.

Faucet Type

The faucet is one of the main requirements of an under-counter water purifier. Ensure that the water purifier you buy comes with a gooseneck or swivel shaped faucet that can be placed on the sink beside your tap.

The swivel shaped faucet allows the free flow of water so that the water does not splash around. You can easily place the bottle to be filled on the sink under the faucet and wait till it fills. 

It ensures a mess-free kitchen.

Self-cleaning System

A self-cleaning system is an added advantage in an under sink water purifier. This feature enables the purifier to clean itself automatically without manual intervention.

It prevents the deposition of dissolved solids like calcium and magnesium on the membrane. Thus, ensuring the long life of the water purifier along with the continuous flow of pure water.

Warranty and service

Many brands offer six months to a 1-year warranty on the product. While certain brands offer a warranty only on the electrical parts, go for a brand that offers the best warranty and promises a good after-sales service.

This keeps you on the safe side as you get a guarantee of smooth service.

Error Alerts

Error alerts like UV fail alarms, and filter change alarms are a few great features to have in your water purifier. These alerts notify you when it is time to change the UV lamp and filters so that you are always provided with safe water to drink.

Mode of Operation

The mode of operation should be automatic. Ensure that the water purifier comes with an auto shut off features that shut off the water purifier when not in use for more than ten minutes.

Moreover, certain features fill the tank automatically so that the tank is always full.

1. Kent Sterling Plus Under The Sink Water Purifier – Our Choice

Kent Sterling Plus Under The Sink Water Purifier
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Kent is one of the most trusted brands when it comes to water purifiers. It offers the best warranty, which gives you years of complete happiness. 

The Kent Sterling Plus is the number one choice when it comes to under sink water purifiers. It uses double purification of RO+UV/UF along with sediment and activated carbon filters to provide your family with water that is 100% safe and healthy.

This compact model has a smart design that allows you to utilize the space in your kitchen in an efficient manner. This under sink water purifier is indeed worth its price!

Main Feature
  • Purification Technology: It uses double purification of RO+UV/UF with TDS controller that makes water 100% pure and safe for consumption.
  • It comes with 6 liters inbuilt hydrostatic storage tank that provides you with a continuous supply of purified water even in the absence of electricity.
  • The filter cartridges include Sediment, Activated Carbon, UF, and Post Carbon filter.
  • The power consumption of the water purifier is 60 watts, while that of the UV lamp is 11 watts.
  • It has a purification capacity of 20 liters/hour.
  • It comes with a mineral RO technology that retains the essential minerals in the water.
  • The body is constructed with ABS food-grade plastic that ensures durability.
  • Kent Sterling Plus comes with a 1-year warranty plus four years of free service.
  • The color of the model: white and blue.
PROS (What we liked)
  • It can remove dissolved impurities such as Arsenic, Rust, chemicals, bacteria, viruses, and salts.
  • The water purifier has a fully automatic operation, which allows it to begin the purification process whenever the level of purified water in the storage tank falls below the maximum level.
  • The compact under sink water purifier comes with a smart design that is suitable for side-by-side placement adjacent to the refrigerators for efficient space utilization.
  • It has a patented TDS control that enhances the taste of the water, enriching the drinking water experience.
  • It is suitable for treating brackish, tap water, and municipal water supply.
  • Kent is ranked as the number one trusted brand in India, making it a must-have product.
CONS (What we didn’t like)
  • The price of water purifier is quite high.
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2. Ozean Under Sink RO Water Purifier

Ozean purifiers are the product of the Himanshu Cooling Center. The Gujarat based company is in the water industry for the past six years.

The company sells its water purifiers with the Ozean brand and solar panels with the brand name New Sunrise. Also, they supply commercial, domestic, and industrial RO systems.

Moreover, they work for water reuse and water treatment.

Ozean under sink purifier comes with 12 ltr capacity. It works on 5s technology and has five stages of purification.

All the purifiers of Ozean are certified and have ISO 9001:2015.  The purifier works fine with any water bore, tap, municipal.

Main Features
  • The product comes with six months warranty
  • The capacity of the purifier is 12 liters
  • It is provided with gooseneck faucet for convenience of the user
  • It has auto-start and auto-shutoff
  • The purifier can be installed under the counter or sink
  • It is suitable for the municipal water, tap water, bore well
  • It follows five-stage purification – pre-filter, sediment filter, post-filter, RO membrane
PROS (What we liked)
  • It is easy to install
  • Quality of RO is good
CONS (What we didn’t like)
  • No negative points found.

3. Hi-Tech Replacement CTO GAC PP Cartridges

Hi-Tech Sweet Water Technologies Pvt. In India, LTD revolutionized the water purification process by bringing the top of the class- Reverse Osmosis (RO) technology to the country.

The company is a supplier of replacement filter cartridges for RO under sink water purifier.

The brand offers sediment filter, carbon block filter (CTO), and GAC filter replacement cartridges.

Its replacement filter cartridges remove chemicals and bacteria, sediments, dust, dirt, and other impurities while improving drinking water’s taste. The cartridges are tested, and quality approved

Main Features
  • 5 Micron Sediment PP Water Filter Cartridge is Compatible with many RO Brands and Models
  • The carbon block filter has class 1 chlorine, taste & odor reduction powered by coconut shell activated carbon 5-micron filtration
  • The CTO has reverse osmosis systems under sink systems flow rate of 1 GPM and high dirt holding capacity.
  • The carbon block filter extrudes carbon with enhanced adsorptive capacity and fits all standard 10? filter housings.
  • Life Cycle 4000 Gallon at Normal Conditions
  • Food Grade Material
  • The GAC uses a combination of Granular Activated Carbon
  • The cartridges have 100 % Polypropylene Construction and are made from Food Grade Material.
PROS (What we liked)
  • Hi-Tech CTO, GAC PP, and cartridges remove chlorine, sediment, taste, odor, and organic chemicals providing pure, healthy, and clean water for drinking, cooking, and showering.
  • The cartridges are easy and economical to install and replace
  • Free of Binders or Additives
  • Non – Forming low TOC content
  • Corrosion Resistance, excellent finish & sturdiness
  • GAC is made from organic materials with high carbon contents such as wood, lignite, and coal
  • Graded pore structure to provide max dirt holding
CONS (What we didn’t like)
  • No negative points were observed so far.

4. R.k. aqua Fresh 5Stage Electrical Water Purifier 

R.K. Aqua Fresh India Private Limited provides a  wide range of purifiers, servicing kits, inline set, and much more. They designed the water purifier system to match CE/ISO 9001:2005 standards.

Also, The company is leading in UV water purification technology.

Aqua Fresh UV technology destroys microbes, viruses, bacteria. The purifier comes with double O-ring housing for better performance.

While the capacity of the purifier is 10 liters. The purifier is easy to install.

Main Features
  • The product comes with a warranty card and installation kit
  • R.K purifier meets ISO 9001:2008 standards
  • The capacity of the purifier is 10 liter
  • Plastic material is used to make the purifier
  • UV water purifier provides three months warranty
  • The aqua fresh UV technology destroys viruses, microbes, bacteria
  • It has double o-ring housings for better performance
  • The purifier requires less maintenance
PROS (What we liked)
  • Look, and quality of the purifier is good
  • Easy to install
CONS (What we didn’t like)
  • Heavy leakage is observed
  • No locking clips

5. Samta Techno Water Purifier – five-stage purification

SAMTA Techno Water Purifier
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Samta provides a wide range of purifiers, electrical replacement kits, RO membrane, SMPS power supply, pre-filter housing kit, and much more. They provide good quality products.

The purifier removes harmful viruses and bacteria, dust, and sand. Samta purifier is suitable for bore water, overhead water tank, municipal water.

Main Features
  • It has an auto start and an auto-off feature
  • The purifier removes impurities up to 8.5ph
  • Also, removes toxins and acidic metabolites
  • The purifier is suitable for all types of water municipal water, bore water, overhead water tank, water tankers
  • While coming to the purification capacity, it has 15 liters/hr with the duty cycle of 75litres/day
  •  Soon after installation two tanks must be emptied
  • The five stages of purification – removes 5 microns sand and dust, chlorine removal by providing clean water, activated carbon filters remove organic contaminants, bad taste and odor, RO membrane in removing harmful pollutants, bacteria, viruses
  • The storage tank capacity is 10 liters
PROS (What we liked)
  • Five stages of purification
  • Removal of harmful pollutants
  • It is NSF certified
  • It is made up of ABS food-grade material.
CONS (What we didn’t like)
  • No negative points found
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6. Filtrete Advanced Under Sink Quick Change Water Filtration System – The Best Filtration System

Filtrete Advanced Under Sink Quick Change Water Filtration System
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Filtrete is the most trusted brand of air filters, under sink filtration systems and replacement systems in America. The products are developed by 3 M engineers making it one of the leading brands in the filtration systems.

The Filtrete Advanced Under Sink is a filtration system that is NSF certified by standard 43 and 52.

It uses a 0.05-micron sediment filter to remove all the impurities in the water, thereby providing you with safe drinking water. Not only is it easy to install, but the filters can also be changed easily without the need for tools.

Main Feature
  • Purification Technology: It uses a 0.5-micron sediment filter to remove impurities from the water.
  • It is available in three replacement filter types- Advanced, Maximum, and Standard, which are interchangeable with the system.
  • It comes with a six months filter life.
  • It comes with an internal shut off valve.
  • It does not come with a dedicated faucet like the other under sink water purifiers.
  • It is NSF certified by Standard 43 and 52.
PROS (What we liked)
  • It is very easy to install; hence installation can be done in less than 30 minutes.
  • The water filtration system removes microbial cysts, chlorine, taste, and odor, sand, soil, silt, rust, and sediment based on 3 M  testing.
  • An up-gradation to Filtrete Maximum can reduce lead in the water by 99.3 %.
  • The filters can be changed easily and quickly without the help of tools.
  • No extra faucet is required as the water flows through the existing faucet.
CONS (What we didn’t like)
  • No negative points found.
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7. Wellon 10 Litre RO and UV Water Purifier – The Reasonable Option

Wellon 10 Litre RO and UV Water Purifier
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This under sink water purifier model launched by Wellon uses RO+UV technology to remove dissolved solids, germs, and bacteria from the water to make it safe for drinking. It is suitable for water with TDS levels as high as 1600 ppm.

The Wellon RO+UV under sink water purifier has a high storage capacity and great features like a self-cleaning system, auto shut-off, etc. at a very reasonable price. This is a great option for those under a budget.

Main Feature
  • Purification technology: RO+UV technology removes the dissolved solids and disease-causing germs and bacteria from the water, making it safe for drinking.
  • It has ample storage tank capacity of 10 liters.
  • Power consumption is 60 watts while that of the UV lamp is 11 watts.
  • RO membrane type: 80 GDP and pump of 100 GDP.
  • It has a filtration capacity of 15 liters/hour that provides ample water for your family.
  • Warranty: 6 months warranty on the electrical parts and a 1-year warranty on the filters except for the RO membrane.
  • Color: White.
  • It is suitable for TDS levels up to 1600 ppm.
PROS (What we liked)
  • It is suitable for water purification from all sources such as bore-wells, overhead storage tanks, water tankers, and municipal taps.
  • It automatically shuts off the pump and stops the water flow when the storage tank is full, saving both water and electricity.
  • It has a self-cleaning system that enhances the life of the purifier and provides convenience to the users.
  • The TDS controller retains the essential minerals in the water and enhances the overall taste.
  • It is a reasonable option with great features.
CONS (What we didn’t like)
  • No negative points were mentioned.
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8. Generic Havells UTC RO+ Double UV+ Mineralizer, 10 Litre Under The Sink RO Water Purifier with Revitalizer– The Best Storage option

Generic Havells UTC RO+ Double UV+ Mineralizer, 10 Litre Under The Sink RO Water Purifier with Revitalizer
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The Havell UTC offers extra safety because of its unique double UV that protects the stored water by re-purifying it every time the tap is turned on. Moreover, the storage tank of 10 L capacity comes with an ingress protection cover that keeps the stored water free of dust and insects.

This water purifier provides safe or no drinking water because of its i-protect monitoring system and ensures complete protection of the purified water that is stored.

Main Feature
  • Purification technology: 100% RO+double UV with 8 stage purification to provide safe and healthy drinking water.
  • The 8 stage purification includes: Membrane performance enhancer, Sediment cartridge, Activated carbon cartridge, RO membrane, Mineralz cartridge, Silver impregnated taste enhancer, Revitalizer, Germicidal UV.
  • It comes with smart alerts like  Self-diagnostic, Purification, and a tank full along with error alerts like UV, SV, Low input water pressure, or pump failure.
  • The Havells water purifier is an under sink water purifier that can also be mounted on the wall.
  • It has a futuristic design for easy installation, while the closed cartridge design offers extra protection against re-contamination.
  • The storage capacity of 10 liters provides readily available purified water for drinking at all times.
  • Warranty: 1 year on the product.
PROS (What we liked)
  • The double UV technology safeguards stored water by re-purifying stored water through UV every time you turn the tap on.
  • The revitalizer restructures the water molecules and makes them biologically active to improve the hydration and mineral absorption.
  • The membrane performance enhancer prevents scaling and increases the life of the RO membrane, enhancing the purification capacity of the water purifier.
  • The Mineral cartridge retains the essential minerals in the water like calcium and magnesium.
  • It comes with an i-protect monitoring system that stops purifying and filling water to ensure that every drop of purified water is disinfected and safe for drinking at all times.
  • The stored water remains safe and free of dust and other contaminants because of the ingress protection cover of the tank.
  • It has a unique and compact design that fits with your kitchen decor perfectly.
CONS (What we didn’t like)
  • The maintenance cost might be high.
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9. A.O.Smith Z-Series Z2 5-Litre Water Purifier – The Best Advanced Digital Display

A.O.Smith Z-Series Z2 5-Litre Water Purifier
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AO Smith has introduced great RO water purifiers that come with its unique hot water option. This Model launched by AO Smith is another great RO water purifier model that is installed under the sink of your kitchen.

It is the ideal option for areas with TDS levels as high as 2000 ppm. However, the water purifier has the best advanced digital display that includes a power icon, tank full indicators, auto-flush, twin advance alert, etc. which adds to the convenience of the user.

Main Feature
  • Purification technology: RO water purifier that undergoes a 5 stage purification process that includes a pre-filter, sediment filter, pre-carbon filter, RO membrane, and silver activated post carbon filter.
  • The inbuilt storage tank has a capacity of 5 liters.
  • It has an advanced digital display that adds to the convenience of the user.
  • Power consumption: 48 watts.
  • It comes with a Gooseneck faucet or swivel faucet for user convenience.
  • It is suitable for water with low and high TDS up to 2000 ppm.
  • Warranty: 2 years warranty on RO membrane and 1-year comprehensive warranty.
PROS (What we liked)
  • The patented side stream RO membrane allows sideways flow of the water, which results in the efficient use of RO Membrane, thereby reducing wastage of water and offers a better rejection of impurities.
  • The advanced display consists of the following.
    Power Icon: The illuminated icon tells you when the purifier on and working.
    Tank Full: tells you when the tank is full.
    AutoFlush: notifies you that the purifier is self-cleaning and flushing out impurities.
    Twin Advance Alert: tells you in advance when the RO Membrane or other filters need to be changed.
    Hot Water: This red icon indicates that hot water is available.
    Temperature: This icon indicates the temperature of the water.
  • The RO membrane is tested and certified by WQA against NSF/ANSI 58 standards for material requirements.
  • The water purifier comes with an easy placement option.
  • AO Smith offers power one service and promises a one-hour response, one-hour resolution, and a one time fix.
CONS (What we didn’t like)
  • The water purifier requires constant servicing, hence you have to spend a lot on maintenance.
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10. Eureka Forbes Aquaguard Invisipure Under The Sink RO Water Purifier – Long Service Life

Eureka Forbes Aquaguard Invisipure Under The Sink RO Water Purifier
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This under sink water purifier is another great option for you to consider. The Eureka Forbes Aquaguard Invisipure is an RO water purifier with a storage capacity of 12 liters that enables you to get purified, safe drinking water at all times.

It is applicable for salty/brackish water with TDS levels ranging from 500-2000 mg/l. Moreover, it has a long service life and a continuous water flow because of its self-cleaning system that prevents the accumulation of dissolved solids on the RO membrane.

Main Feature
  • Purification technology: Water is made to pass through the RO membrane, which removes excess TDS, blocks dissolved impurities, and chemical contaminants.
  • It has a storage capacity of 12 liters to ensure you never run out of pure drinking water.
  • The RO membrane type: Thin composite film (75 GDP).
  • The water flow rate of 12 liters/hour provides an ample amount of drinking water.
  • It has a high-pressure switch and a self-cleaning system.
  • Warranty: 1 year on the product.
PROS (What we liked)
  • The water purifier has an elegant and compact space-saving design that makes it convenient to place under the sink, especially at homes with space constraints.
  • The self-cleaning system enhances the service life and water flow by preventing the accumulation of dissolved salts like calcium and magnesium on the membrane by auto-cleaning regularly.
  • The pump automatically shuts off once the tank is full, cutting off the water flow. This saves water and electricity.
  • The essential minerals are retained in the water, enriching your drinking water experience.
  • The water purifier can be installed easily without any hassle.
CONS (What we didn’t like)
  • No negative points were mentioned.
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11. AO Smith UTC X5 RO Water Purifier– Water Saver

AO Smith UTC X5 RO Water Purifier
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The AO Smith UTC X5 is a great RO under sink water purifier that undergoes a 5 stage purification process to ensure safe drinking water for you and your family. The patented side stream RO membrane (SSM) prevents wastage of water and ensures recovery of the water.

Moreover, it has a compact design that fits in your kitchen perfectly while the swivel faucet ensures zero splashing and smooth flow of water. The water purifier saves water and prevents the kitchen from getting messy.

Main Feature
  • Purification technology: RO water purifier that undergoes a 5 stage purification process that includes a pre-filter, sediment filter, pre-carbon filter, RO membrane, and silver activated post carbon filter.
  • It has a maximum flow rate of 15 liters per hour.
  • The storage tank comes with a capacity of 7.5 liters approximately.
  • Power rating is 48 watts.
  • The RO membrane is of thin film composite type that is suitable to remove TDS up to 2000 ppm.
  • It comes with a gooseneck or swivel faucet for user convenience.
  • It comes with an auto-start and auto shut-off feature.
  • It comes with a one-year comprehensive warranty.
PROS (What we liked)
  • It comes with a patented SSM (Side Stream RO Membrane), which ensures less wastage of water, and it improves the pure water recovery.
  • The advanced pre-filter and sediment filter ensure a better and longer life of the RO membrane.
  • The material used for construction includes food-safe, non-toxic, engineering grade plastics that ensure the durability of the product.
  • It is very effective in removing suspended solids and sediment from the water.
  • The water purifier has a compact design that can easily be fit into the kitchen cabinet under the counter.
CONS (What we didn’t like)
  • The price is quite high.
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Frequently Asked Questions

1. How long does water filter or purifier last?

Water filters or purifiers last long enough. However, the cartridges provided will not last long, and one must need to replace them when necessary.

Also, the tanks will last depending upon the capacity. A bigger tank will last longer than a smaller tank.

2. Does RO water taste differently?

Yes, RO water is purified, and it removes all the chemicals, minerals from the tap water. While the tap water has the taste because of the chemicals and minerals included in it and is in impurified form.

Sometimes RO water tastes terrible due to the malfunctioning of the RO system.

3. Which filter is better RO or UF?

RO and UF are membranes that help filtration. Both have the difference in holes through which the water passes.

RO has small holes, and it removes even salt water molecules from water. UF is not capable of removing dissolved salts while RO can remove them.

However, both are capable of removing viruses, germs.

4. Does hot water ruins water filter?

Running hot water through a filter may damage the RO membrane, and it is not considered safe. However, hot water kills many bacteria. If you still want to run hot water, it will make RO useless.

5. Which water filter removes the most contaminants?

Reverse Osmosis filtration removes the most contaminants from water.  It helps in removing most of the bacteria, viruses, harmful pollutants, and much more.

Conclusion

Under the sink, water purifiers are popular, mostly in foreign countries. However, they are gradually becoming popular in India as well.

They are very much like wall mount water purifiers when it comes to features and purification. The only difference between both is the installation.

Here we come to the end of the article. This article has focused mainly on under sink or counters water purifiers.

We have provided a comprehensive buyer’s guide along with the detailed review of the top ten under sink water purifiers, which will help you make the right choice.

The Kent Sterling Plus is our number one recommendation, especially because it is a well-trusted brand and also since it comes with great specifications. You can also choose from the rest of the products mentioned, which are equally great. Hope this article helps!

Anaida Sutherland
 

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