5 Best Under the Sink Water purifier in India 2023

Access to clean and pure drinking water is a basic requirement for any household. In India, having a good water purifier is very important and quite common as well. But, in the recent days the hype of modular kitchens is at its peak, and the bulky water purifier sets are not appreciated very much. To fill the gap, under the sink water purifiers made their entry into the market and gained quite some popularity for all good reasons.

While the regular water purifier takes up space, might ruin the aesthesis, and bulges out in your kitchen, the under the sink water purifier just does the opposite. It purifies water just like the usual water purifiers without ruining the décor of the area. Instead of wall mounting or table top setup, such purifiers can be installed under the sink.

However, finding the right one for your kitchen can be challenging and time taking. Therefore, to help you, we have tried several options for weeks. We tested them with water from different sources, compared them all and shortlisted some of the best under the Sink Water purifier in India.

How did we select the best?
Water pressure:
As under sink water purifier requires more pressure than the usual RO we selected water purifier that can provide more water pressure.
Cartridge life:
We checked and included under-the-sink water purifiers that are durable and have got good cartridge life.
Purification technology:
Next we focused on the purification technology used by each product and selected water purifiers that have RO+UV purification technology.
Storage capacity:
As you will need purified water all the time we ensured that the water purifiers we recommend have a good storage capacity to serve the needs even during power cuts.
Installation:
We made sure to select under-the-sink water purifiers that don’t have very complicated installation method.

List of Best Under The Sink Water Purifiers:

KENT Sterling Plus RO water purifier is a great under-the-counter domestic/commercial solution. It uses several water purification processes like reverse osmosis (RO), ultraviolet (UV), ultrafiltration (UF), and total dissolved solids (TDS) control among others to remove unwanted impurities and contaminants from water. Besides, its Mineral RO retains important natural minerals in purified water, making it healthy and taste good.

The double purification with RO, UV, UF and TDS control assists in removing dissolved impurities like arsenic, rust, chemicals, bacteria, viruses and salts, thus producing 100% pure and safe drinking water. The purifier offers auto-on/off, which indicates when water level reduces to maximum capacity in the storage tank.

Moreover, this purifier comes with a 6 liter hydrostatic storage tank which will enable the provision of pure water continuously even during power outages. It has a compact smart design that can go under the counter or placed beside the refrigerator to save valuable space. It is suitable for purifying water from different sources such as brackish water, tap water and municipal corporation supply.

Besides, water purification becomes convenient with the kent sterling plus under-the-counter installation, purification technology of RO, UV, UF and TDS control. Also, the high storage capacity of this product is suitable for different water sources.

Specifications:

  • Multiple purification processes
  • Mineral RO technology
  • Double purification
  • 6L storage tank
  • Compact design
Pros
  • Retains natural minerals
  • Safe, tasty and healthy drinking water
  • Automatic operation
  • Good storage capacity
  • Suitable for different water sources
Cons
  • Purification process is slow

The A.O.Smith Z2+ Under the Counter Water Purifier is the perfect choice for a modern modular kitchen that seeks to minimise clutter while still getting purified water. This sleek and compact under the sink water purifier has a patented Side Stream RO membrane technology. It guarantees 100% of water passing through the RO membrane, ensuring removal of impurities and leaving pure and safe drinking water.

Besides, the purifier has 6-stages of purification including sediment, carbon block, and RO filtration, to remove all the contaminants and dissolved impurities. The naturally occurring minerals remain in the purified water by employing patented MIN-TECH (Mineralizer Technology) to give the water a refreshing taste. The sleek white finish of this product blends well with modern kitchen décor, while the compact size means it takes up little space.

Also, its 5 litre of storage capacity makes it ideal for a family of 3 to 5 members without refilling water frequently. The digital display is user-friendly and provides information regarding intelligent feedback on water quality, the life of filters, service alters and more.

This product comes with a 1 year comprehensive warranty covering the RO membrane and filters. Moreover, the advanced alert system also alerts users when to change the RO membrane or filters, allowing you to have easy maintenance.

Specifications:

  • 6-stage purification
  • Side Stream RO membrane technology
  • 5L storage capacity
  • Mineraliser technology
  • Digital display with alerts
Pros
  • 100% pure and safe drinking water
  • Compact size
  • Ideal for family with 3-5 members
  • Retains natural taste
  • Easy to use
  • 1-year comprehensive warranty
Cons
  • Requires frequent filter replacements
  • Needs constant electricity

KENT Excel Plus RO Water Purifier is another outstanding under-the-counter water purification solution for houses and offices. The purifier has more than four purification processes which include UV, RO, UF, and TDS control.

It uses an RO membrane to remove the dissolved impurities and salts while the UV technology disinfects the water by eliminating disease causing microorganisms. This also kills bacteria, viruses, and cysts through Ultra Filtration process. Besides, this product has a dedicated TDS control system that controls TDS at 500-2500 ppm to purify brackish, tap, and municipal water supplies.

The product comes with a storage tank of 7 liters that works on hydrostatic basis thus there is purified water available at any time. Moreover, it is an energy saving appliance with a maximum power consumption capacity of 60W. It also conserves water by creating one litre of purified water from 1.65 litres of used water.

The KENT Excel Plus has dimensions of 46 x 25 x 59 cm, which takes less space under kitchen sinks and work counters. The brand also offers a free installation, which adds up as a cherry on top of the cake.

Specifications:

  • Multiple purification process
  • 7L storage tank
  • 60W power consumption
  • 1 year warranty
Pros
  • Energy efficient
  • Compact design
  • Suitable for all water sources
  • Saves water
  • Free installation
Cons
  • 15L/hour purification rate
  • High AMC

Eureka Forbes Aquaguard UTC RO+UV+MTDS Water Purifier is a mini appliance with RO, UV, and MTDS technologies. It provides great tasting and safe drinking water through your kitchen tap.

This product uses the gold standard RO technique to remove dissolved solids, chemicals, bacteria and viruses from water. It also uses UV e-boiling technology which is equivalent to boiling water for more than 20 minutes. It eliminates all the microbes that might be remaining, ensuring that one hundred percent safe and pure drinking water is obtained.

MTDS is a special feature that allows adjusting the TDS levels to uplift the water taste as per the preference and water source quality. Therefore, this purifier is able to calibrate the taste of water whether it is municipality, borewell or tanker.

Also, the Active Copper and Zinc Booster Technology is another intelligent feature of this product. It adds trace amounts of copper and zinc back into the purified water, which, while essential for health, are often deficient in purified water.

Besides, its Mineral Guard Technology retains other beneficial minerals such as calcium and magnesium while filtering out heavy metals like arsenic and lead.

The water storage tank has 8 liters capacity and Smart Auto Fill function that refills the tank every time water is dispensed, so you never get short of water.

Specifications:

  • RO, UV, and MTDS purification technologies
  • Active Copper & Zinc Booster
  • Mineral Guard retains Ca & Mg
  • 8 liters capacity
  • 1-year warranty
Pros
  • 100% safe and pure water
  • Removes chemicals, bacteria, viruses
  • Adjusts water taste
  • Space-saving design
  • Auto refill
Cons
  • Slow filtration rate
  • No alert for filter replacement

The P-Link under sink RO system is a technologically advanced water purification solution from a reputable Indian manufacturer. It features robust 5-stage filtration to eliminate impurities and dissolved solids. Particles and sediment are trapped in the pre-filter stage. Besides, the granular activated carbon filter removes chlorine, pesticides, chemicals, bad taste and odour.

The reverse osmosis membrane works as the heart of filtration technology, and eliminates heavy metals such as arsenic, lead, and mercury as well as fluoride, bacteria, viruses, and salt. Also, the ZAC (Zinc, Alkamine, Copper) technology increases the mineral content and alkalinity of water for better absorption. The final stage involves a silver-impregnated post-carbon filter to purge the residual impurities and ensure clarity.

Moreover, this system has a high precision RO membrane and a multi-stage filtration process to purify hard water containing up to 2000ppm TDS. It has a point-of-use water filter that removes up to 99% of contaminants to supply water comparable to bottled water in the convenience of your home.

Besides, this product has other useful features like a rotatable faucet, 360 degrees, 150 liter storage tank, 15 liters per hour capacity with one year’s warranty. It takes little space and can thus be installed in places with low space. Besides, maintenance is easy as it involves quick-connect fittings and no leakages.

Specifications:

  • 5-stage filtration
  • 15 liters/hr purification capacity
  • 150 liters storage tank
  • ZAC technology
  • 360° rotatable designer faucet
  • 1 year warranty
Pros
  • Removes contaminants like chemicals, bacteria, heavy metals
  • Compact design
  • Easy maintenance
  • Stylish and durable faucet
Cons
  • Requires professional installation

Top Under the Sink Water purifier in India compared:

Product NamePurification ProcessTank CapacityFlow RateWarranty
KENT Sterling Plus RO Water PurifierRO + UV + UF + TDS Control6 liters20 LPH4 Years Free Service
A.O.Smith Z2+ Under the Counter Water Purifier100% RO Technology (6-Stages)5 litersNot specified1-year Comprehensive Warranty
KENT Excel Plus RO Water PurifierRO + UV + UF + TDS Control7 liters15 LPH4 Years Free Service
Eureka Forbes Aquaguard UTC RO+UV+MTDS PurifierRO + UV + MTDS8 litersNot specified1 Year
P-Link Open Top Under The Sink RO + ZAC FilterRO + ZAC (Zinc Alkaline & Copper)15 liters15 LPH6 Month Replaceable Filter

To purchase the best water purifier among the above mentioned options, you must understand your own unique needs and priorities. All the products that could make their way to the list have all the required features to be the best. However, on neutral grounds, the KENT Sterling Plus RO Water Purifier with a 4-year warranty, 6-liter tank and a flow rate of 20 LPH can be identified as a great pick overall for most users since it has high combined features.

Eventually, the final option that you should choose will depend on your specific requirements, your budget, and the weight you attach to the tank capacity, warranty, as well as the filtration process. Please consider these factors and what you will learn from product reviews or specifications of the manufacturer before deciding.

How to buy the best Under The Sink Water Purifier: A Buying Guide?

Purification Technology: Consider the purification technology used. Find systems that have several filtration steps for total water purification. Some of the key technologies to evaluate include RO, UV, UF, and TDS control. KENT Sterling Plus RO Water Purifier utilizes technologies like RO (Reverse Osmosis), UV (Ultraviolet), UF (Ultrafiltration), and TDS Control. It also has a patented Mineral RO Technology, which preserves all the natural minerals in the purified water, leaving it healthy, and tasty.

Storage Capacity: Ensure there is enough water in the tank to keep supplying the purified water even when there is a power outage. P-Link 15Liter Per Hour Open Top Under The Sink is an ideal pick if you are looking for a large family or for commercial use. It has a hefty storage of 150 litres. However, if you have a small family, you can go for the KENT Sterling Plus RO Water Purifier. It comes with a storage capacity of 6 litres and is sufficient for a family of 3-5 persons.

Water Source Compatibility: Check whether a purifier can treat water from diverse sources, like brackish water, tap water, and MC water supply. The KENT Excel Plus RO Water Purifier can purify water from different sources such as brackish water.

Energy Efficiency: Go for power-efficient purifiers to cut down on electricity costs like the KENT Excel Plus. It consumes 60W of power and hence can be a worthy pick.

Warranty and Service: Make sure there is a warranty period and service support available so that you have peace of mind and timely repairs. With 1 year comprehensive warranty covered by the A.O.Smith Z2+ and Eureka Forbes Aquaguard UTC, both tend to be great options.

Filtration Stages: Checking the number of filtration stages for effective purification is very important. With 6-stage purification the A.O.Smith Z2+ Under the Counter Water Purifier is a worthy choice.

Conclusion

From our research, we understood that under the sink water purifier can be a great way to upgrade your kitchen to a modular one. But, with so many options finding the right one that will fit the best can be challenging.  Our team of experts has listed some of the best under-the-sink water purifiers that are available in India. We took weeks to test and compare them all to collect accurate data that will help you make the right decision.

However, we suggest going for a water test, before you start looking for the best product for yourself. Depending on that you can make your decision. So, upgrade the look of your kitchen, ensure that your family is drinking healthy water, and bring home an under-the-sink water purifier.

Also read,

  1. Best RO water purifier under 15000 in India
  2. Hot and cold water purifiers in India
  3. Best water purifier with low maintenance cost in India
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