Category: Water Purifier

RO Water Purifiers

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According to a World Bank report, “water quality in India has deteriorated as a result of an uncontrolled discharge of raw domestic and industrial waste-water”. Indian cities are lagging behind in providing reliable, sustainable, and affordable water supply. Due to these disturbing trends, people are finding RO purifiers as the best option for drinking safe water.

What is RO Purification?

Discovered by Dean Spatz, Reverse Osmosis (RO) refers to a technique that uses a semi-permeable membrane in order to remove ions, molecules, dissolved salts, and larger impurities from drinking water. There are other types of membranes for water purification also, but the RO membrane provides the most effective & reliable water purification.

How Does RO Work?

When an artificial pressure pushes water through a fine RO membrane, the impurities present in the water get filtered out. The size of the pores of the RO membrane is very, very small. These pores allow only water molecules to pass through while preventing other contaminants.

RO purification is capable of filtering out up to 99% of over 60 different contaminants including lead, arsenic, mercury, fluoride, chlorine, etc.

When to Use an RO Purifier?

  • TDS level of water is greater than 500 PPM.
  • TDS level of water is less than 500 PPM but the water contains harmful heavy metals like lead, arsenic, etc.

Useful Articles

Aquaguard Water Purifiers

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Aquaguard is one of the oldest and most popular water purifier brands in India.

Aquaguard is the flagship water purifier brand of Eureka Forbes and has around 36 years of research and understanding of Indian water conditions and the best water purification technologies.

Aquaguard water purifiers are manufactured in ISO 9001 and 14001 certified manufacturing plants. Aquaguard is also one of the few water purifier brands that have 18 water labs that constantly test the water samples across the country.

Not all types of water can be purified using any one technology and therefore Aquaguard has developed around 21 different water purification technologies to address 21 different water conditions.

Aquaguard water purifiers are tested and certified by over 135 laboratories across the globe and are also endorsed by Indian Medical Association.

The brand has won several prestigious awards including the Golden Peacock Award, UNESCO Water Digest Awards, RED Dot Design Awards, and several others.

Here, you can check and compare Aquaguard water purifiers, their reviews, features, and prices in India.

Here is the best-selling Aquaguard RO water purifier price list that was last updated on: October 17th, 2025.

Eureka Forbes offers four distinct ranges of water purifiers under the brand name Aquaguard, Dr. Aquaguard, AquaSure, and AquaSoft.

Aquaguard offers UV, UV+UF, RO, and RO+UV water purifiers in the mid-price range. Aquaguard offers on-the-go water purification products that start from as low as Rs. 595 to fully-packed water purifiers prices as high as Rs. 35,000.

Dr. Aquaguard is a premium range of water purifiers equipped with Universal, RO, and UV technology, Mineral Guard, and Biotron cartridges. Dr. Aquaguard RO water purifiers feature ultramodern designs and bold colors that make them look very attractive.

Why Should You Buy Aquaguard RO Purifier?

When you buy any water purifier from Aquaguard or Dr. Aquaguard you can be sure of two most important things, product quality and impeccable after-sales service.

We always recommend buying water purifiers from brands that have reliable customer support and after-sales service and Aquaguard is definitely one such brand.

Aquaguard RO water purifiers come with various other smart features like intel e-boiling, a taste enhancer, and Electronic membrane life enhancer. The TDS regulator and Mineral Guard feature help in retaining essential minerals in the purified water.

Aquaguard Customer Care Numbers

Aquaguard has the largest sales and service network with a presence in more than 36 countries and across 800 towns in India.

Aquaguard has the largest service network in India and you can find an authorized service center every 5 km. The brand also operates multiple call centers for quick response.

If you want to raise any complaint or service request you can call Aquaguard customer care toll-free number: 1860 266 1177.

You can also write an e-mail to Eureka Forbes Aquaguard at the below-given e-mail ids:
Online Sales: onlineshopping@eurekaforbes.com
Service: deepa.customercare@eurekaforbes.com

 

Kent Grand Plus 8-Litre Mineral RO + UV/UF with TDS Controller Water Purifier

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Review of Kent Grand Plus

Kent Grand Plus is fully automatic and a feature-packed water purifier from Kent RO. It employs an extensive RO+UV+UF purification mechanism with TDS control, which ensures that your family is getting the safest drinking water all the time. Its high-end features, effective performance, and 4 years of free service are a great value for your money.

Kent Grand Plus employs the double treatment of RO and UV purification, which naturally makes it one of the most sought-after purifiers in India.

Top Features of Kent Grand Plus RO Water Purifier

  • Purification Technology: RO+UF+UV+TDS Controller. Double purification of RO/UF+UV removes harmful bacteria and dissolved impurities, making water 100% pure
  • Storage Capacity: 8 litres
  • Applications: Suitable for purifying brackish / tap water and municipal corporation water
  • Purification Capacity: Up to 20 litres per hour
  • Save Water Technology: Recovers more than 50% water as purified water and stores the rejected water in a separate tank for reuse of RO waste water
  • Alert Mechanism: Computer controlled operation with Filter Change and UV Fail alarms
  • UV Lamp: 11 Watt UV lamp for deactivating harmful bacteria and microorganisms
  • Filter Cartridges: Sediment, Carbon block filter, UF, and Post-carbon
  • Material: ABS Food Grade Plastic
  • Automatic: Fully automatic with auto-on and auto-off function
  • Mounting: Wall mounted
  • TDS Control Valve: It allows the user to control the content of natural minerals in the purified water
  • Extra Accessories: Push-fit components for leak-proof performance, User manual, Warranty card and Service center details
  • Indication: Purified water level indicator
  • Power Supply: Operates on electricity with built-in SMPS for frequent power fluctuations
  • Certifications: WQA (USA & India), NSF (USA) and ISI (India)
  • Installation: Free of cost at customer’s premises
  • Warranty: 1-year warranty + 3 years free service

Filtration Process of Kent Grand Plus RO + UV/UF+TDS

The Kent Grand Plus purifies water in 7 advanced stages:

Stage 1 – Sediment Filter

The sediment filter is used in the first stage of purification where input water is allowed to pass through it. This process of filtration effectively filters out all the impurities, dirt, particulate matter and suspended solids.

Stage 2 – Activated Carbon Filter

The water thus filtered from sediment filter is then fed into the activated carbon filter. This stage is very crucial in filtering out chlorine, organic compounds, bad odor as well as unpleasant taste from the water. Carbon is highly capable of blocking all the unwanted impurities and the water received at the end of this process is much purer.

Stage 3 – RO Filtration

This is the most crucial stage of purification in which a semi-permeable membrane is used. The RO filtration removes all the dissolved organic salts and other harmful contaminants. The reverse osmosis process of filtration requires an optimum pressure close to 30-40 psi to be applied to the water. It makes water molecules pass through the membrane while leaving behind the suspended impurities. In addition to the dissolved salts, RO filtration removes heavy metals like lead, pesticides, nitrates, and sulfates.

Stage 4 – Ultrafiltration

This is the fourth stage of purification in which water from the previous stage is allowed to pass through ultra-filtration. The UF membrane acts as a powerful line of defense in which macromolecules are trapped and removed. Sometimes much smaller and invisible impurities remain in the water. Even these impurities are filtered out due to the extremely small pore size of the UF membrane, which is 0.01 micron. This technology uses fine threads of fibers and also removes extra-hardness from the water.

Stage 5 – TDS Controller

This stage of filtration employs a TDS controller that helps in controlling total dissolved solids in the water coming out of the Kent RO membrane. The RO process along with reducing the hardness of the water also removes essential natural minerals. Thus, the TDS controller makes sure that these minerals are retained in the water. The output water from the TDS controller is safer, healthier, purer and enriched with minerals.

Stage 6 – Ultraviolet Filtration

It is the next step of filtration in which UV technology is utilized which effectively kills bacteria, viruses, and disease-causing germs. The UV filtration uses an 11 watt UV lamp from which ultraviolet radiations are spread in the water. It deactivates all the microorganisms to make water safe and free from germs.

Stage 7 – Post Carbon Filter

It is added to bring up the flavor of the water and enhance the taste as well.

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Review of Other Features of Kent Grand+ Water Purifier

Elegant Design

The attractive design and the transparent cover of Kent Grand Plus look great at any place in your home. Its convenient usage makes it a perfect machine for any kitchen, restaurant, or hostel. You can see all the components functioning inside the upper cabinet, while the water level indicator of the storage tank allows you to know the level of water inside.

TDS Controller

The TDS control valve serves a very significant function which results in the reduction of TDS levels up to 90 percent. This feature is not available in any other water purifiers. This function also makes sure that natural minerals in the purified water are intact. TDS control ensures healthier and better-tasting water.

Global Certifications

Kent Grand Plus is tested and certified by distinguished laboratories and important quality centers around the country. It has won NSF and WQA Gold Seal in the United States. Therefore, this fact reflects that this water purifier is extremely reliable. It is also CE and RoHS certified.

Leak Proof Design

Kent uses high-end design technology which makes leak-proof and its push-fit components take care of leakage and wastage of water. These fittings come with rubber O rings that are built in to provide additional protection against leakages. It is made of ABS plastic and its food grade quality makes it safe, durable and highly reliable.

Save Water Technology

In conventional RO Technology, about 80% of water gets wasted and only 20% of water is recovered as purified water. This means you needed 10 Litres of input water for every 2 litres of purified water. KENT Grand Plus employs Save Water Technology which recovers more than 50% water as purified water. And the best part is, unlike other RO purifiers, the rejected water is stored in a separate tank. And that waste water can be utilized for other home tasks like gardening, mopping, washing, etc. Thus Kent Grand+ resulting in less to no water wastage.

Kent Grand Plus Specifications
Model Name Grand Plus
Storage Capacity 8 L
Purifying Technology RO+UV+UF
Filtration Capacity 20 L/Hr
Filter Cartridges Sediment, Carbon Block Filter, UF & Post Carbon
Maximum Duty Cycle 100 Litres/Day
Power Consumption 60 Watt
Membrane Type Thin Film Composite RO
Booster Pump Voltage 24 V DC
Inlet Water Pressure/Temp (min) 0.3 Kg/cm2 or 4.3psi / 10°C
Inlet Water Pressure/Temp (max) 3 Kg/cm2 or 42.7psi / 35°C
Membrane Housing Spin-welded RO membrane housing
Width 25.5 cm
Height 53.5 cm
Length 39 cm
Weight 9.4 kg

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