Are You Looking for a Water Purifier to Suit Your Sleek Modular Kitchen(2021)? 10 Best Under Sink Water Purifiers to Save Room in Your Kitchen

Are You Looking for a Water Purifier to Suit Your Sleek Modular Kitchen(2021)? 10 Best Under Sink Water Purifiers to Save Room in Your 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. You will find this article very helpful as you will go on reading the important factors to look at when you are buying the Under-Sink Water Purifier and some best recommendations.

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Are Under-Sink Filter Better than Wall Mounted One?

As we understand the need to have clean potable water, water purifiers are in vogue these days. The wall-mounted ones are not suitable for small kitchens or modular kitchens. They would be an eyesore. The under-sink models use a hydrostatic air pressure tank that provides a better flow rate. They also keep your kitchen dry with no spillage.

Apart from providing clean water, the under-sink models are also aesthetically pleasing and do not make the kitchen walls look crowded. The maintenance work is also easy. In this article, we will discuss some of the best under the sink water filters that will be suitable for your home.

How to Choose an under Sink Water Filter

Available Space under the Sink

The best way to make your kitchen look tidy is to hide the water filter. You can have it under the sink, but there must be ample space to fit it too. If the area is too tight, it would be difficult for the technicians to undertake maintenance work. You must take the measurements correctly and then search for products that can fit under your sink.

The Types of Filters

It is essential to know about the types of filters before choosing one. The filters can be of two types:

Inline filters: They have a single cartridge that is installed using the push fittings. The installation can be cumbersome, but you can use the sink while the water flows through the purifier.
Regular filters: They need a dedicated filter tap. There can be a T-connector to install the second tap.

Is It Enough for the Household?

The device that you choose must fit into the allocated space conveniently. It is better that you take the measurements of the area before selecting one. You must search for the products that can fit into the space you have. Moreover, it is equally essential to understand the requirements of the family. The storage will depend on the amount of potable water that is required daily.

Life of the Filter

The installation of the device takes time. Now, if you have a technician coming to your house frequently to change the filter, it could lead to additional work. You must search for products that do not require replacements of its parts often. The RO membrane and the filter are two of the accessories that may need replacement. Choose a product that has a durable filter and does not require too many replacements.

Your Budget

Naturally, you will need to allocate a budget for this purchase. There are too many products available to choose from, and you may be bewildered by the number of choices. If you have a budget, you can restrict yourself and choose based on the availability of the common features.

Best Under-Sink Water Filters Available in India

Kent Excell Water Purifier

Kent is among the renowned brands in home appliances, including water filters. It is a global brand and has several lines of products in the home appliance sector. This product from the Kent stable is among the best in the country and can store seven litres of pure water. It is portable too and can be placed under the sink. It uses innovative purifying technology with a RO + UV/UF + TDS Controller.

A TDS controller checks the number of dissolved salts in the water. Through Mineral RO Technology, it retains the necessary minerals in the water. It undertakes a double purification of RO and UV to remove the impurities. It has an alarm that informs the user to change the filter. Another alarm tells you if the UV functionality fails for any reason. There is a spin-welded RO membrane housing that helps to prevent tampering.


  • It has a double purification system along with a TDS controller.
  • The storage capacity is high to help you during an emergency.
  • It is certified with a Gold Seal of the WQA and Certification from NSF, (USA).
  • You can have pure water even during a power cut.


  • If the filter needs to be changed, you have to do it within the next 60 hours; else it stops working.
  • It has a high maintenance cost.

It is available at Rs. 15,999 on Amazon. There is a one-year warranty along with three years of extended free service.

A.O Smith Z2 + Water Purifier

The second entrant on this list is this under the counter product from A.O. Smith. It is a RO + MIN-TECH Water Purifier that is ideal for homes and small offices. It can store up to five liters of water, and the material of the tank is graded ABS and is known to keep the water purified for a longer time. The product has six stages of purification, making it among the best for value for money.

The purifier has a patented side stream RO membrane technology that is suitable for low and high levels of TDS in water. The pure water comes out from a gooseneck faucet. There is an intelligent display for information, and a digital display helps to give the user some critical information. A smart alert informs the user about when to change the filter or the RO membrane. The product is certified by WQA against NSF/ANSI 58 standards.


  • It has an adequate storage capacity.
  • It is suitable for both low and high levels of TDS in water.
  • It has a six-stage purification process.


  • It is expensive, given its features.

It is priced at Rs. 16,980 and is available on Amazon. 

KENT Sterling

It is the second brand from Kent to find its place on this list. It is an advanced RO filter using the patented Mineral RO technology. It has a TDS controller that helps to retain the essential minerals. While it is an under the sink product, it allows for side by side placement, and can even be placed beside your refrigerator. It can automatically start the purification process when the purity level in the storage tanks fall.

It undertakes double purification of RO+UF and removes any traces of Arsenic and other chemicals and germs, bacteria, etc. The filter can store up to six litres of water. It is certified by WQA and Certification from NSF (USA).


  • It has a double purification mechanism that purifies water more.
  • It is a space saver and can be placed anywhere.
  • It can store up to six litres of water.


  • It cannot work without power.
  • It does not have a water level indicator.

It is priced at Rs. 17,700 and is available on Amazon. 

Havells UTC Water Purifier

Havells is a popular consumer durable and electrical brand. Its water purifiers have also made a place for themselves in the marketplace. The UTC water purifier is among the best in its grade and supports a unique 8 stage purification process using RO + UV and has a silver impregnated taste enhancer. It is made from ABS grade plastic and can store up to 8 litres of water.

It has a technology that can restructure the water molecules and make it biologically active. This helps to enhance the pH balance in the water. It has a height-extended foot on the four sides that makes maintenance easier.


  • It comes from a renowned brand. There is an 8 stage purification process.
  • It is easy to install and maintain.


  • It is expensive vis-à-vis other models on this list.

It is priced at Rs. 17,490 on Amazon.

Aquaguard Invisipure RO

Aquaguard is another renowned brand of water purifiers. This product is portable enough to be used under the sink due to its space-saving design. The product can store up to 12 litres of water, making it among the highest storage capacities among its peers on this list. There is an automatic shut-off mechanism that shuts the purifier when the tank is full.

The RO technology removes the impurities but retains the needed minerals in the water. It has a self-cleaning mechanism that ensures a longer life for the membrane. A high-pressure switch shuts the pump and stops the flow of water when the tank is full.


  • It can store up to 12 litres of water.
  • RO technology removes impurities.
  • It is economical and comes from a renowned brand.


  • It does not contain the latest technology that some of its peers have.

It is priced at Rs. 13,500 on Amazon.

ZeroB Kitchenmate

The product from Zero B is known for its elegant design and is compact. It can be placed under the sink to maintain the aesthetics of your kitchen. It purifies the water through a seven-stage purification process using a patented ESS technology and prevents the formation of slime. It releases silver ions in the RO treated water, thereby protecting against germs. The pump is cut-off automatically when the tank is full.

The product can store up to eight litres of water. It meets the USEPA drinking water standards & IS10500 and meets the Indian specifications. The water you drink is free from heavy metals and germs. It rejects TDS salts up to 95%.


  • It has a seven-stage purification process.
  • The product meets Indian specifications for pure drinking water.
  • It uses ESS technology to prevent slime formation.


  • It does not use UV technology.
  • It is quite expensive against its peers.

It is priced at Rs. 18,500 and is available on Amazon.

Ozean 12 LTR Under Sink RO Water Purifier

This product from Ozean is known for its utility-grade benefits. It can be used for purifying water with TDS up to 2000 ppm. It purifies water with a RO + SCMT technology and can store up to 12 litres of water. It has a five-stage purification process that includes a RO membrane and silver activated post-carbon. The RO membrane advanced pre-filter, and a sediment filter can remove the sediments and suspended solids from the water. It is made from food-grade ABS plastic material along with an automatic start and shut-off. There is a gooseneck faucet for ease of use. The machine is ideal for municipal water.


  • It can store 12 litres of water.
  • There is a five-stage filtration process that can remove suspended particles.
  • A gooseneck faucet makes its usage more comfortable.


  • Installation is chargeable; even it is meagre.
  • It does not support UV filtration.
  • No advanced technology like some of its peers.

It is priced at Rs. 5,599 and is available on Amazon. 

WELLON 15 LPH Openflow Under-Sink RO Water Purifier + Wellon 10 Liter Storage Tank

If you are looking for a low-cost water purifier, then this product from Wellon can be your choice. It has a 10-litre storage tank and countertop RO system. A double purification system of RO + UV can remove dissolved impurities like salts and chemicals. It has a seven-stage purification system like some of its advanced peers. There is a TDS controller that ensures the essential minerals are not removed. The product has an advanced mechanism that can shut the pump and stop the water flow when the tank is full. There is a self-cleaning system too. It is made from food-grade and engineering-grade ABS.


  • It has a seven-stage purification process.
  • A TDS controller can control the level of essential minerals in the water.
  • It has a ten-litre storage tank.


  • Given that it has a low price, it still has features that can be compared with some of its peers. However, it may not purify like some of its advanced peers.
  • Its customer care service needs improvement.

It is priced at Rs. 9,850 and is available on Amazon.

Eureka Forbes Aquaguard Superb UTC RO+UV+TasteGuard RO Purifier

It is the second entry from Aquaguard. And why not! Aquaguard is among the respected brands of water filters and purifiers. It is also ranked among the best RO providers in the country. It has a RO+UV+TG technology and can be placed in a short space, and even under your sink.

This product comes with a sleep feature and a sleek design. TasteGuard technology identifies the source and automatically chooses the purification mechanism. You can even purify water from borewells and tankers.

A mineral guard technology can retain the necessary minerals in the water. The active copper technology enhances the goodness of copper in water. A chemi-block removes excess chlorine and impurities. It has an 8 litres storage tank, and an LED system makes it easier for users to understand the purification process.


  • It has a Biotron cartridge that can break down the water molecules to release nutrients.
  • It can automatically choose the purification method based on the water source.


  • Despite the unique features it provides, it is expensive.
  • Given the price, the size of the tank could be more.

It is priced at Rs. 17,999 and is available on Amazon.

Unique Antioxidant Alkaline Under Sink RO

This entrant from Thunderwell is known for its unique water purification technology. It is an NSF certified antioxidant alkaline filter. It has an antiscalant pre-filter that lasts long. It also supports UV and RO technologies. The product can reduce the ORP and increase pH. It can also reduce the harmful effects of pesticides and Arsenic in water. The purifier supports auto shut down and has a coconut shell carbon filter. It also has a mechanism to remove active oxygen from the water. The purifier can store up to 12 litres of water.


  • It has an advanced alkaline purification mechanism apart from RO and UV technology.
  • It can store up to 12 litres of water.
  • It can remove the harmful effects of active oxygen as well as Arsenic and pesticides in water.


  • Given that it does not have the backing of a renowned brand, it is costly vis-à-vis its peers.

It is priced at Rs. 19,900 and is available on Amazon.

Digital Marketer, Blogger
Sanjay Das
Sanjay is a marketing professional with more than 15 years of experience. He has a penchant for writing blogs and articles and has written over 350 blogs across diverse topics and industries. Sanjay takes a keen interest in SEO-based content writing for websites and social media. He also runs his own blog for digital marketing articles.
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From our editorial team


The under-sink water purifier is a new concept in the market. It has become more popular in small houses or nuclear families.The greatest advantage of the under-sink water purifier is that it saves a lot of space and does not require much maintenance like the regular water purifiers. An ideal pick for every household, the water purifier disinfects microorganisms like bacteria, viruses and protozoa etc.