Is an under sink water purifier better than a wall-mounted one?

Under sink purifiers offer the same or better purification performance as wall-mounted models while saving countertop space. They are ideal for modular kitchens where aesthetics and space optimization are priorities.

Can under sink water purifiers handle high TDS levels in water?

Yes, most under sink RO purifiers are designed to handle high TDS levels, often up to 2000–3000 ppm. Ensure the model has a TDS controller or mineralizer for safe and balanced output.

Does an under sink purifier need a separate faucet?

Yes, most under sink purifiers come with or require a dedicated faucet for dispensing purified water. This ensures clean, direct access to drinking water without mixing with unfiltered tap water.

Is installation and maintenance of under sink water purifiers difficult?

Installation usually requires professional help, especially for plumbing and faucet fitting. Maintenance is simple and typically involves periodic filter changes and cleaning, similar to regular RO systems.

Which Are The Best Under Sink Water Purifiers For Home? Hidden Purity And Visible Results

Discover the top under sink water purifier from brands like AO Smith, Aquaguard, and more, delivering healthy and safe drinking water without compromising with the modern aesthetics of your kitchen.

By : Ishaan Srivastava
Last Updated on Jun 05, 2025 16:14 IST
Published on Jun 05, 2025 16:14 IST

Which Under Sink Water Purifier Is Best

Under sink water purifiers are an ideal solution for contemporary homes looking to provide clean and safe drinking water while also preserving kitchen aesthetics. Under sink filters are installed beneath the kitchen counter with a direct line connected to the water supply, providing a powerful, multi-stage filtration system while also conserving counter and sink space. They are a great option for homes that want an inconspicuous and sleek, water purification system that blends directly into your modern modular kitchen. The top under sink water purifiers boast high flow rates, efficiency, and advanced technology for upfront filtration and include advanced features like RO+UV technology, filtration with mineral retention, and additionally come with a faucet and storage tank to deliver purified water on demand even in homes with poor water conditions, high TDS levels, hard water conditions and heavy metal or chemical contamination. The fact is, under sink water purifiers are a dependable solution, customized specifically for Indian water quality. In this guide, we will review the best-rated under sink water purifiers based upon performance, design, and durability for everyday no hassle use.

Under Sink Water Purifiers For Home: Top Picks

For the finest water purifiers for homes, consider companies like AO Smith, Aquaguard, and others if your kitchen is small or you don't have enough room to install a filtration system. These water filtration systems from leading brands are an excellent option for small kitchens because of their stylish and compact designs. Consider the given options and choose which water filter is best for your home.

AO Smith X5+Neo Under Sink RO Water Purifier for Home
Designed to provide plenty of purified drinking water without taking up room on your kitchen counter, the AO Smith X5+Neo is a small but powerful under sink RO purifier that gives you access to safe, full-flavour, mineral-rich drinking water. It utilises 6-stage 100% RO purification, which means it removes impurities, heavy metals and other harmful contaminants completely. The copper fortified mineralizer puts all the trace minerals back into your purified water, which means that not only does it taste great, but it is good for you. It also has a lovely stylish gooseneck faucet that gives you quick and smooth dispensing of water making it great for modern kitchens. There's 6 liters of built-in storage so you won't need to worry about running out of purified drinking water, even during power cuts. It si designed for superior performance, but it also looks good, blending seamlessly in your kitchen with easy access under the sink. Once you get it hooked to your kitchen tap you are ready to go - and you can use borewell or municipal water without concerns; each glass you drink will be pure, safe, and fortified with copper goodness.
Specifications
- Brand: AO Smith
- Model: X5+Neo
- Capacity: 6 Litres
- Lower Temperature Rating: 5°C
- Upper Temperature Rating: 45°C
- Power Source: Corded Electric
- Mounting Type: Under Sink
- Item Weight: 9.8 Kg
Pros
- 100% RO purification with 6-stage filtration ensures safe and clean water
- Copper-enriched mineralizer improves taste and supports better metabolism
- Space-saving under sink design with quick dispense gooseneck faucet
Cons
- Lower storage capacity compared to some competitors
- May require professional installation for optimal setup
01
Aquaguard Select Designo
Designed for great water quality and beautiful integration, the Aquaguard Select Designo features advanced 9-stage purification with RO+UV+Active Copper technology. This under counter product includes a taste adjuster, allowing you to change the water taste based on your water source: tanker water, borewell water, or municipal water without any alteration that would affect the outcomes of the water purity testing. Active copper fortification boosts metabolism and immunity and achieves an ideal water experience while retaining key minerals. The purified water is stored in an 8-liter storage tank, ensuring your home and family have access to clean water all day long, even with low pressure or no power to keep the water flowing. An inbuilt pressure pump guarantees flow and pressure performance without the need to depend on input water pressure. The Aquaguard Select Designo is a personalized solution for every domestic house, with varying change in water source depending on seasons or no altercations in water source, it suits abundant needs with efficiency.
Specifications
- Brand: Aquaguard
- Model: Select Designo
- Capacity: 8 Litres
- Lower Temperature Rating: 10°C
- Upper Temperature Rating: 40°C
- Power Source: Corded Electric
- Mounting Type: Under The Counter
- Item Weight: 10.5 Kg
Pros
- 9-stage purification with RO+UV+Active Copper and Taste Adjuster
- Inbuilt pressure pump suitable for all water sources including borewell
- Large 8L tank offers better backup during high usage
Cons
- Bulky under sink unit may need ample cabinet space
- Taste Adjuster might slightly alter natural water flavor
02
Bepure UTS ISI Mark Under Sink Water Purifier
The Bepure UTS Under Sink Water Purifier combines strong and multi-stage filtration as well as large capacity for the best serviceability to large families or groups of people. BOOT can accommodate extremely high levels of TDS (up to 3000 ppm) for very hard or contaminated water. With RO+UV+UF+TDS Controller and Copper Alkaline technology features, the Bepure UTS will not just deliver high purification, but also high mineral content and an appropriate pH balance in water. With an admirable 12 litters capacity, the running model allows you to have constant access to purified and stored drinking water, even at peak times. BOOT is adaptable to modern kitchen solutions by being compact and under the sink mounted while still being capable in size and function. With everything you need in a single modern product, the Bepure UTS would be a complete water purification approach to everyone interested in functioning convenience, reliability and performance.
Specifications
- Brand: Bepure
- Model: UTS ISI Mark
- Capacity: 12 Litres
- Lower Temperature Rating: 5°C
- Upper Temperature Rating: 45°C
- Power Source: Corded Electric
- Mounting Type: Under Sink
- Item Weight: 11.2 Kg
Pros
- Works with high TDS up to 3000 ppm – ideal for tough water
- Comprehensive 6-stage purification with RO+UV+UF+TDS+Copper Alkaline
- Large 12L tank ensures steady water supply for big families
Cons
- Heavier and larger than average under sink purifiers
- Lack of smart indicators for filter life or water quality
03
Aquaguard Designo NXT
With the excellent set of features and area-saving design the Aquaguard Designo NXT water purifier is redefining water purification. It has a state-of-the-art 9 stage filtration technology with RO technology, UV technology and Active Copper technology that will remove impurities from water and purify it in the same step while infusing 'Copper' health benefits. It is compatible with any water source whether borewell, municipal and tanker water and can adjust the taste according to your habit/taste. The built-in pressure pump is great for low pressure areas as well, ensuring consistent purification. It has a 7 liter storage tank so that you have clean water available all through the day. In addition, the purifier sits neatly under sink and protects the aesthetics of the kitchen while it does the purifying work behind the scenes. Aquaguard Designo NXT water purifier is perfect for any modern house. It offers you safe drinking water, healthy drinking water and great taste and all with very little footprint and application level.
Specifications
- Brand: Aquaguard
- Model: Designo NXT
- Capacity: 7 Litres
- Lower Temperature Rating: 10°C
- Upper Temperature Rating: 40°C
- Power Source: Corded Electric
- Mounting Type: Under The Counter
- Item Weight: 10 Kg
Pros
- 9-stage purification with Active Copper, RO, and UV technology
- Inbuilt pump ensures optimal performance even in low-pressure areas
- Compact and elegant under-sink integration for modern kitchens
Cons
- Smaller tank size may be limiting for large households
- No app connectivity or filter change alert system
04
Waterdrop 15Ub-Uf Under Sink Water Filter System
The Waterdrop 15Ub-Uf under sink filtration system is an ultra-filtration system that is a high capacity filtration system. It is perfect for people who want the freshest, no odor, chlorine-free, crisp water to drink. Featuring 0.01-micron UF membrane technology, it eliminates bacteria and sediment and includes other contaminants without stripping away the good minerals. It has a capacity of 16,000 liters that adds long term use with low maintenance. The brushed nickel faucet would look at home in any modern kitchen and provides instant access to filtered water. With the Waterdrop filter system, it is easy to install and even easier to maintain. Its passive and progressive design allows everyday users to reach their goals using a simple filter, high quality technology, while looking modern and aesthetically pleasing.
Specifications
- Brand: Waterdrop
- Model: 15Ub-Uf
- Capacity: 16,000 Litres (lifetime capacity, no storage tank)
- Lower Temperature Rating: 5°C
- Upper Temperature Rating: 38°C
- Power Source: Non-electric
- Mounting Type: Under Sink
- Item Weight: 3.1 Kg
Pros
- 0.01 micron ultra-filtration removes bacteria while retaining minerals
- No electricity or water wastage – ideal for eco-conscious users
- Compact design with brushed nickel faucet adds elegance and utility
Cons
- Not suitable for high TDS or very hard water
- Lacks mineralizer or alkaline enhancement features
05

Disclaimer: At Jagran, 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. Jagran 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.

Faq's

Is an under sink water purifier better than a wall-mounted one?
+
Under sink purifiers offer the same or better purification performance as wall-mounted models while saving countertop space. They are ideal for modular kitchens where aesthetics and space optimization are priorities.
Can under sink water purifiers handle high TDS levels in water?
+
Yes, most under sink RO purifiers are designed to handle high TDS levels, often up to 2000–3000 ppm. Ensure the model has a TDS controller or mineralizer for safe and balanced output.
Does an under sink purifier need a separate faucet?
+
Yes, most under sink purifiers come with or require a dedicated faucet for dispensing purified water. This ensures clean, direct access to drinking water without mixing with unfiltered tap water.
Is installation and maintenance of under sink water purifiers difficult?
+
Installation usually requires professional help, especially for plumbing and faucet fitting. Maintenance is simple and typically involves periodic filter changes and cleaning, similar to regular RO systems.

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