5 Best Space Saving Under Sink Water Purifiers for Home

Discover the best space-saving under sink water purifiers for your home to save space and have a convenient water filtration system. Check out these branded picks from Aquaguard, Livepure, Kent, and others on Amazon.

Best Space Saving Under Sink Water Purifiers for Home

A water purifier doesn't necessarily have to occupy a lot of counter and kitchen space. Modern under sink water purifiers feature a space-saving design while providing effective water filtration. These systems are installed discreetly below the sink, keeping your kitchen neat while delivering purified drinking water directly from the tap. Most of these RO water purifiers use multiple filtration stages to remove impurities like dissolved solids, heavy metals and bacteria, ensuring safe water for everyday consumption. They are also equipped with a larger storage capacity and better ability to provide long-term performance as compared to small countertop models. Here are some of the reliable options of space-saving under-sink water purifiers for home from Amazon, featuring the best water purifier brands, including Aquaguard, Kent, Livepure, and others, to effectively upgrade your water filtration setup. 

Why Do We Keep Water Purifiers Under The Sink?

Users like to keep their water purifiers hidden under the sink primarily to save valuable countertop space and create a cleaner, more minimalist look in the kitchen. This design is connected directly to the water line, enabling it to provide quicker and more pressurised water flow. The house's powerful multi-stage filtration systems, like RO, UV, and copper, remove contaminants effectively and further ensure safe drinking water. Overall, it is a very convenient option providing constant access to pure water without needing any refill pitches, as all you have to do is turn the dedicated tap on.

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    Aquaguard Designo NXT 9-Stage Under The Counter Water Purifier

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    The active copper technology of the Aquaguard Designo NXT under counter water purifier infuses your filtered water with the goodness of copper. Its superior 9-stage purification, including RO and UV, offers greater bacteria and virus reduction and up to 30 times better dust and chemical removal than any other local purifiers. The integrated zero-pressure pump works even at low or no water pressure, making it perfect for both high and low-rise apartments. Their advanced water-saving technology helps save up to 40L of water every day as compared to regular purifiers. The Aquaguard under sink water purifier purifies water from any source, including municipal, borewell, or tanker water, providing only the safest and cleanest drinking water every time.

    Specifications:

    • Product Dimensions:39L x 25.8W x 46.2H Centimeters
    • Material:Acrylonitrile Butadiene Styrene
    • Capacity:6.8 litres
    • Installation Type:Under Sink
    • Purification Method:Reverse Osmosis, Ultraviolet
    • Item Weight:9 Kilograms
    • ASIN:B0CV7HQ6RZ
    • Country Of Origin:India
    • Supported Water TDS Level Maximum (PPM):2000
    • Power Source Type:Electric

    Reasons to buy:

    Quick installation and easy to operate

    Value for money purchase

    Sleek and elegant design

    Compact size fits easily under the sink

    Reason to avoid:

    Some users faced functionality issues after a few months

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    AO Smith Z2+ Luxe RO Under sink Water Purifier

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    The AO Smith water filter purifier offers an impressive 55% water recovery and conserves much more water than conventional RO water purifiers. Its 7-stage purification enables you to enjoy healthy and safe drinking water as the multi-stage purification process removes dissolved impurities and unwanted microbes for consistently safe and healthy drinking water. The AO Smith under counter water purifier fits seamlessly beneath your sink, ensuring that it doesn't take up space in your kitchen countertop while providing purified water for your family. Integrated with added benefits of copper, the filtered water is not only free from chemicals but also enriched with copper nutrients, delivering healthful hydration in every sip. The intelligent display panel lights up when storage is full, alerts you when filters need replacing and also provides a self-cleaning membrane feature so you know exactly what your RO filter needs.

    Specifications:

    • Product Dimensions:27L x 41W x 42H Centimeters
    • Material:Plastic
    • Capacity:6 litres
    • Installation Type:Under Sink
    • Purification Method:Reverse Osmosis
    • Supported Water TDS Level Maximum (PPM):2000
    • Item Weight:13.5 Kilograms
    • ASIN:B0F6T6M8V5
    • Model Name:Z2+ Luxe (Walnut)

    Reasons to buy:

    Sturdy and durable build

    Looks sleek under the sink

    Easy to install and operate

    Reason to avoid:

    Some users thought that the water quality was not up to the mark

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    KENT Sterling Star Under the Counter RO Water Purifier

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    Designed for modern modular kitchens, the Kent Sterling Star fits neatly under counter while delivering advanced purification performance. The Kent RO filter uses a comprehensive RO, UV, UF, alkaline, and copper-based purification process to handle water from multiple sources. With a purification capacity of up to 20 litres per hour and a 6-litre storage tank, the Kent water purifier supports regular household consumption efficiently. One of its standout elements is the digital display that shows water purity in real time, offering added transparency to users. TDS control helps maintain balanced mineral levels, while the alkaline feature enhances overall water quality. The concealed installation keeps countertops clutter-free, maintaining kitchen aesthetics. Backed by four years of free service, this water filter for home is well-suited for households looking for long-term reliability combined with a clean, built-in kitchen setup.

    Specifications:

    • Special Feature:Change Filter Indicator
    • Product Dimensions:45.5L x 24.5W x 42H Centimeters
    • Material:Plastic
    • Capacity:6 litres
    • Installation Type:Under Sink
    • Purification Method:Reverse Osmosis
    • Supported Water TDS Level Maximum (PPM):500
    • Item Weight:14 Kilograms
    • ASIN:B0CRKYM8R8
    • Country Of Origin:India

    Reasons to buy:

    The taste of filtered water is good

    Decent quality and performance for the price

    The flow of water under low pressure is adequate

    Reason to avoid:

    The storage capacity is a little less than 6L

    Some users reported water filter leakage from the tank

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    Zero B New Kitchenmate UV Under the Sink Water Purifier

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    Designed specifically for municipal water,  the Zero B Kitchenmate UV purifier relies on a four-stage purification process that includes UV treatment to neutralise harmful microorganisms. The under sink water purifier installation keeps the unit hidden, making it ideal for modular kitchens and office pantries where space and appearance matter. With a flow rate of 1 litre per minute, the RO filter delivers instant purified water without the need for storage tanks. The compact and sleek design allows for easy installation even in tight cabinet spaces. This RO water purifier model is suitable for users who do not require RO purification but want dependable microbial safety with a simple, low-maintenance setup for everyday drinking water needs.

    Specifications:

    • Product Dimensions:32L x 15W x 48H Centimeters
    • Material:Polycarbonate
    • Capacity:10 litres
    • Installation Type:Under Sink
    • Supported Water TDS Level Maximum (PPM):1500
    • Item Weight:6.4 Kilograms
    • Model Name:UV Under The Sink
    • ASIN:B0BLKBCYG9
    • Maximum Flow Rate:1 Liters Per Minute

    Reasons to buy:

    The compact size of the purifier enables it to easily fit under the sink

    Easy installation and operation

    Value for money purchase

    Reason to avoid:

    Some users experienced problems with its water heating capacity

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    Livpure Stealth Under The Counter Water Purifier

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    Built to remain unseen while performing consistently, the Livpure Stealth under counter water filter for home is designed for households seeking discreet installation without compromising purification quality. The RO filter uses a six-stage RO and UV purification process to remove dissolved impurities and harmful microorganisms from water. The 7-litre storage tank ensures availability during peak usage hours, while the compact body fits easily beneath kitchen cabinets. Its under sink water purifier design supports modular kitchen layouts by keeping the countertop free from bulky appliances. The RO water purifier is suitable for varied water sources and focuses on delivering clean drinking water through a concealed system. With balanced purification stages and a space-efficient build, this model works well for homes that prioritise functionality.

    Specifications:

    • Installation Type:Under Sink
    • Product Dimensions:42L x 26.5W x 45H Centimeters
    • Material:Acrylonitrile Butadiene Styrene
    • Capacity:7 litres
    • Item Weight:11.54 Kilograms
    • ASIN:B0CPP6CZXM
    • Country Of Origin:India
    • Purification Method:Reverse Osmosis, Ultraviolet

    Reasons to buy:

    Effective filtering functionality over the months

    Compact yet sturdy in its build

    The filtered water quality is excellent

    Reason to avoid:

    Some users faced issues with the quality of service

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Best Space Saving Under Sink Water Purifier  

Model

Technology

Stages

Capacity

Highlight Feature

Aquaguard Designo

RO, UV, Copper

9 Stages

7 Litres

Inbuilt Pressure Pump

AO Smith Z2+

RO, SCMT, Copper

7 Stages

5 Litres

High Water Saving

KENT Sterling Star

RO, UV, UF

7 Stages

6 Litres

Digital Purity Display

Zero B Kitchenmate

UV Technology

4 Stages

Instant

Sleekest Compact Body

Livpure Stealth

RO, UV, Copper

6 Stages

7 Litres

IoT App Connectivity

Explore further articles on water purifiers from our Home Solutions and Electronics section. 

Also Read: 5 Best Water Purifiers And Filters For Home In India: Top Picks For Every Budget

Disclaimer: At HerZindagi, we prioritize providing the up-to-date information on the latest trending commodities and goods. This Article is written and vetted by our in-house category authors in sync with the Google guidelines on product reviews and shoppable content. HerZindagi is in an associate partnership, so we may earn a part of the revenue when you make a purchase. We shall not be liable for any claim under applicable laws, including but not limited to the Consumer Protection Act, 2019, concerning the products. The products listed in this article are in no particular order of priority.

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Faq's

  • What is a good TDS for RO water?
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    The best TDS level for RO water is between 50-150 PPM or less than 300 PPM. A TDS above that level can make it unsafe for consumption while affecting its taste and odor.
  • Does boiling water reduce TDS?
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    No, boiling water does not reduce Total Dissolved Solids (TDS); in fact, it concentrates them because water evaporates, leaving minerals and salts behind, making the TDS higher, though it does kill germs and viruses, making it safer from microbes.
  • How often do you change the under sink water filter?
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    In general, you can expect an under sink to require replacement every 4-6 months, though RO filters can last longer.
  • How to maintain an under sink water filtration system?
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    It filter involves regularly replacing filter cartridges (typically every 6-12 months), checking for leaks, and periodic sanitisation, especially for Reverse Osmosis (RO) systems, to ensure clean water and prevent bacterial growth