Best RO Systems 2025: 10 Top-Rated Models for Clean Drinking Water

Have access to safe and healthy drinking water that has advanced filtration systems such as reverse osmosis. This guide takes a look at the best-rated RO systems that offer advanced purifying technology at home from renowned brands like KENT, Aquaguard, and AO Smith.

The basic form of the healthy lifestyle is clean drinking water, and the reverse osmosis (RO) system has proven to be a work-tested method of purifying water at home. With the growing pollution of water sources, RO systems are enjoying popularity among households that want to get rid of impurities, chemicals, and bacteria in their drinking water.

Reverse Osmosis Technology of Water Filter Systems What is it?

Reverse osmosis (RO) is a type of water filtration system that makes use of a semi-permeable membrane to filter various contaminants. This is achieved by exerting pressure to push water through the membrane, which is virtually the blocker of dissolved solids, heavy metals, bacteria, and viruses, leaving clean and purified water. Although some useful minerals may also be removed in this process, many modern systems have a remineralization step so as to replace them. RO systems are frequently used to clean up water at home because they are effective.

The following guide will be a review of the highest-rated RO systems in 2025 to assist you in selecting the best system among them according to their key features.

S.No.

Top Products

Feature

Rating

01

Aquaguard Nexen RO+UV+Active Copper Water Purifier

Mega Sediment Filter

4.2

02

KENT Supreme Plus Alkaline+Copper RO Purifier

Auto Flush

4.1

03

AQUA D PURE 4-in-1 Copper RO Water Purifier

Auto Shut Off

4.1

04

Proven Nexon Aqua Water Purifier for Home

Saves 60% Water

4.5

05

Pureit Wave Plus Mineral RO+UV

Efficient Sterilisation

4.6

06

Native by Urban Company M2 RO Water Purifier

No MTDS Mixing

4.4

07

AO Smith Z9 Pro Black Instant Hot and Ambient RO

One-Touch Dispensing

4.2

08

Livpure Glo Star Copper Water Purifier

In-Tank UV Sterilisation

4.1

09

Havells Aquas Neo Water Purifier

BIS Approved

4.2

10

Faber XUV 8000 (UV + UF + Alkaline)

Power Indicators

4.1

Aquaguard Nexen RO+UV+Active Copper Water Purifier

This Aquaguard water filter is based on advanced NanoPore filter technology to provide protection against some recent contaminants such as microplastics, lead and pesticides. Its multiphase purification system of 10 combined steps that include Active Copper and UV e-boiling makes every droplet of water not only impeccable but also remarkable in its purity. It is a cost-effective system that offers powerful filtration to the current households.

Brand: ‎Aquaguard

Item Weight: ‎6 Kilograms

Model Name: ‎AQUAGUARD ENRICH NEXEN RO+UV 2X

Supported Water TDS Level Maximum (PPM): ‎1000

KENT Supreme Plus Alkaline+Copper RO Purifier

The KENT purifier provides comprehensive cleaning with multi-stage cleaning whereby the purification passes by RO, UV, UF, alkaline, and copper filtration. The storage tank includes a UV LED to maintain water stability and an auto-flush feature that cleans the RO membrane, allowing for prolonged life and performance without maintenance, thus promoting well-being with a pH-balanced water stream.

Brand: ‎KENT

Item Weight: 8 Kilograms

Model Name: ‎KENT Supreme Alkaline Black

Maximum Flow Rate: 100 Liters Per Day

AQUA D PURE 4-in-1 Copper RO Water Purifier

For those seeking safe drinking water on a budget, this 4-in-1 RO system is an excellent choice. It features a large 12-litre storage tank, an auto shut-off function to prevent overflow, and a high-quality RO membrane that removes up to 96% of dissolved solids, while UF technology retains essential minerals.

Brand: ‎AQUA D PURE

Special Feature: ‎automatic shut-off

Item Weight: ‎0.49 Kilograms

Installation Type: Wall Mount or Table Top

Proven Nexon Aqua Water Purifier for Home RO+UV+UF+TDS

Plugging into any type of water, this purifier has a 12-litre tank with convenient smart LED sensors displaying the actual level of the tanks and the state of purification in real time. Its neutral balancing system, which balances acidity in the water's high pH, makes it taste better, and its high water-saving technology makes it a convenient and eco-friendly solution.

Package Information: Tank

Item Weight: 8 Kilograms

Operating Pressure Range: 125 PSI

Supported Water TDS Level Maximum (PPM): 2500

Pureit Wave Plus Mineral RO+UV | 6-Stage Purification

This Pureet takes a 6-stage RO system with a UV system to give 100% pure water that also eliminates 99.9% of bacteria and viruses. It has the capacity to store 7 litres of water and has a mineral enhancer cartridge to add important minerals such as calcium to the water. SmartSense indicators warn 15 days before the filter is out of use.

Brand: ‎HUL Pureit

Special Feature: ‎WQA certified

Model Name: ‎WPWB500

Maximum Flow Rate: 20 Litres Per Hour

Native by Urban Company M2 RO Water Purifier

This intelligent water filter displays real-time information about the quality of water with the Urban Company app. It comes with a 10-stage purification technology (RO+UV+Alkaline+Copper) and an 8-litre food-grade tank that has in-tank UV sterilisation. With a 2-year free warranty, it is an ideal product to keep in a family of four, as it becomes durable and hassle-free.

Brand: Native by UC

Item Weight: 8.5 Kilograms

Model Name: ‎Native M2

Supported Water TDS Level Maximum (PPM): 2000

AO Smith Z9 Pro Black Instant Hot and Ambient RO

This premium AO Smith RO system features a durable stainless steel tank and 8-stage purification for baby-safe water. Its one-touch dispensing function offers convenience, providing water at three different temperatures (hot and ambient). The patented side stream RO membrane ensures 100% water passage for maximum purity, preventing any secondary microbial contamination.

Brand: ‎AO Smith

Item Weight: 14.63 Kilograms

Power Source: Corded Electric

Upper Temperature Rating: ‎80 Degrees Celsius

Livpure Glo Star Copper Water Purifier

This Livpure has an 8-level purification process with a built-in mineraliser which holds important minerals such as magnesium to maintain good health. It is a quality in-tank UV sterilising system; it can also operate in the event of a power outage, and convenient LED indicators provide real-time data about the power and the purification process to easily monitor it.

Brand: Livpure

Item Weight: 7.2 Kilograms

Installation Type: Wall Mount

Maximum Flow Rate: 15 Liters Per Hour

Havells Aquas Neo Water Purifier

This Havells water filter features a 7-step purification process, complemented by a smooth design and efficient performance. Its operating mechanism makes it have water run through both RO and UF membranes to isolate contaminants. It has a distinctive magnesium flywheel that puts needed minerals in the water to make the water healthier, safer, and tastier.

Brand: ‎Havells

Special Feature: ‎Automatic Shut-Off, Lightweight

Item Weight: 5700 Grams

Model Name: ‎Aquas Neo

Faber XUV 8000 (UV + UF + Alkaline)

Another product that is suitable at home is the Faber water purifier, which boasts of some of the most advanced filtration technology (7-stage) with UV and UF and an alkaline system. The space-saving design can fit easily on a kitchen counter. In order to prevent the reservoir from overflowing, it utilizes the power indicator function to alert you when it is full. Ideal for municipal water, a Faber water purifier can remove a maximum of 500 PPM TDS, meaning it can give you healthy and clean water. 

Brand: ‎Faber

Installation Type: Countertop

Model Name: ‎XUV 8000

Supported Water TDS Level Maximum (PPM): 500

How Does an RO System Work?

Pre-filtration: Water in the first stage is filtered by pre-filters, which cannot be easily filtered by micro-sorbent functions like water.

High-Pressure Pump: A pump causes the water to be pressured to push it through the RO membrane.

Semi-permeable Membrane: It is this fundamental element that has small pores that partially screen the passage of water molecules at the expense of large impurities such as dissolved chips, bacteria, and viruses.

Separation: This method removes the contaminants that are shunned by the membrane and are flushed out as waste, and the purified water is taken.

After filtration the treated water can be filtered further through further filters (e.g., activated carbon) to enhance flavour and smell.

Storage: The last purified water is stored in a special tank, and it can be used.

Comparison of Top RO Systems for Home Use

Water Purifiers

Capacity

Filtration Technology

Special Features

Aquaguard Nexen RO

6-litre

10-stage purification

NanoPore filter, UV E-boiling

KENT Supreme Alkaline

8-litre

RO+UV+UF+Alk+Cu+TDS Control+UV LED Tank

Auto Flush, Alkaline & Copper filters

AQUA D Pure 4-in-1 RO

12-litre

RO, UF

Auto shut-off, Inbuilt TDS adjuster

Nexon Aqua

12-litre

RO, Copper, Alkaline

High water saving, Smart LED indicators

Pureit Water Purifier

7-litre

RO, UV

Mineral enhancer, SmartSense indicators

Native by UC

8-litre

RO+UV+Alkaline+Copper (10-stage)

Real-time tracking, In-tank UV

AO Smith

10-litre

8-stage Side stream RO

Stainless steel tank, 3 temperature modes

Livpure

7-litre

8-stage with Mineraliser

In-tank UV sterilisation, LED indicators

Havells Aquas Neo

7-litre

7-stage with Magnesium

Water energy efficiency, Magnesium cartridge

Faber XUV 8000

7-litre

7-stage (UV, UF, Alkaline)

Space-saving design, Power indicators