Which Water Purifier Is Best For Hard Water? Top Options For Your Modern Home

A water purifier is a basic need of modern homes, especially in regions like India. Explore the best water filter for home from brands like Kent, Aquaguard, and more.
Top Water Purifiers for Hard Water

In India, several regions have water sources like borewells, municipalities, and tankers, where the water is often categorized as hard. The TDS level of these water systems can be as high as 500 ppm or above. This makes them extremely salty and not ideal for consumption. That is why a top water filter for hard water becomes a basic need. Go for RO water purifiers that can eliminate minerals like magnesium and calcium, which in turn soften the water and make it ideal for drinking. It is designed to remove a wide range of impurities, including hardness-causing minerals. The RO technology utilizes a semipermeable membrane that forces out the water under pressure, filtering out the minerals and dissolved solids. RO purifiers are a great option for your home solutions and electronics that can come with advanced technologies like TDS control, smart LED indication, and more. 

Top Water Purifier Options For Hard Water

Which water purifier is best for home use? Are you also struggling with this question? Then look at the popular water purifiers that are suitable for hard water and deliver clean and safe drinking water. The water purifiers with RO technology are a good option for hard water as they eliminate bacteria and viruses while retaining essential minerals like magnesium and calcium. Explore the top 5 best water purifiers in India. 

  • KENT Supreme RO Water Purifier

    This Kent water filtration system utilizes several purification stages, such as RO+UF+TDS Control+UV LED and a fine water storage tank, which ensures thorough purification. The storage tank has an in-tank UV LED technology that protects the water stored in the tank from bacteria and viruses. The activated carbon filtration removes chlorine, organic impurities, and any materials causing odor to the water. It is compatible with all water sources, including borewells, tankers, etc. The separate TDS control built-in technology retains essential natural minerals in purified water. This filtration system also removes bacteria, viruses, chemicals, and dissolved impurities like arsenic, rust, and pesticides.

    Specifications 

    • Package Information: Dispenser
    • Installation Type: ‎‎Under Sink
    • Power Source: Electric
    • Item Weight: ‎10 Kilograms
    • Model Name:‎ ‎KENT Supreme Black

    Pros

    • UV LED in the storage tank to keep water purified. 

    Cons

    • Its motor stopped working after some time. 
    01
  • Aquaguard Sure Delight NXT RO+UV Water Purifier

    Aquaguard water filtration system removes bacteria and viruses and has better dust removal than local purifiers. The RO Maxx technology removes contaminants like lead, mercury, and arsenic, which cause viruses and bacteria. With UV-E boiling technology, each drop of water is as pure and healthy as water that is boiled for over 20 minutes. Its long cartridges last up to 1 year or 6000 liters, delivering consistent performance based on standard test conditions. The smart LED indication keeps you informed with intuitive alerts for service reminders, tank full indicators, filter life warnings, and electronics errors, making it one of the top water filters for hard water. It is a 6-litre water purifier which is ideal for small families. Some of the special features include RO+UV Purification, Energy Saving, and LED Indicators.

    Specifications 

    • Package Information: Dispenser
    • Installation Type: ‎Countertop
    • Power Source: ‎Corded Electric
    • Item Weight: ‎‎‎‎6.7 Kilograms
    • Model Name:‎ Delight NXT RO+UV

    Pros

    • Ro Maxx technology that removes microplastics, pesticides, and more. 
    • UV-E boiling to get purified water.

    Cons

    • A few customers are not satisfied with the functionality.
    02
  • Havells AQUAS Water Purifier

    Havells AQUAS water filtration system delivers absolute safety through 100% RO and UF purification. It comes with a Dual Mineral & Bacteriostatic Taste Enhancer Cartridge and more. It is a compact design with 3 mountings and a hygienic zero-splash water flow controller for dispensing. With a smart alert and ingress protection tank cover, and a removable tank. This water filter comes with 5 stages of purification, including a revitalizer with Smart Alerts and an electrical protection system. The hygiene flow control faucet is easy to dispense and has zero splash of water. The electrical protection system protects the purifier from electrical damage, making it one of the best home water purifiers. With an ingress protection tank cover, external invasion of insects and dust particles is stopped. The UF membrane removes algae, spores, cysts, and organic matter and delivers excellent quality of clear water. 

    Specifications 

    • Package Information: Dispenser
    • Installation Type: ‎Countertop
    • Power Source: ‎Corded Electric
    • Item Weight: ‎‎‎8000 Grams
    • Model Name: ‎‎‎Aquas

    Pros

    • The electrical protection system protects the purifier from electrical damage.
    • Power & Error Indicator

    Cons

    • A few customers found a water leakage issue.
    03
  • V-Guard Zenora RO UF Water Purifier for Home

    This V-Guard water purification system This water purifier features 7 stages of purification that provide you with long-lasting performance with very minimal maintenance. Hollow fiber UF membrane serves as a polishing filter and protects your filtered water so that any remaining fine particles do not reach your drinking water. The Zenora meets the latest BIS standards, recovers as much as 40% water, and is capable of treating water with TDS of up to 2000 ppm, making it suitable for borewell, tanker, and municipal water. It features a 7-liter storage tank made of 100% food-grade plastic. There is a booster pipe water purifier provided when the inlet water pressure is less than 4 PSI.

    Specifications 

    • Power Source: Electric
    • Item Weight: ‎‎8.29 Kilograms
    • Model Name: ‎‎RO UF (Up to 40% Recovery)
    • Maximum Flow Rate: ‎20 Liters Per Hour
    • Supported Water TDS Level Maximum (PPM): ‎2000

    Pros

    • 7-Stage Advanced RO Purification
    • Up to 40% Water Recovery

    Cons

    • A few customers are not satisfied with the service. 
    04
  • Pureit Eco Water Saver RO+UV+MF+Mineral

    HUL Puriet water purifier comes with an ECO saver that saves up to 60% of your water, which is double ordinary ROs. The mineral enhancer cartridges enrich your water with essential minerals like calcium and magnesium, which provide you with 100% of your water. With efficient UV sterilization, this purification kills up to 99.9% of bacteria and viruses. A smart sensor indicator alerts you 15 days before filter expiration and suspends the water dispensing if the filter is not changed, ensuring safe water. It has the highest storage capacity of 10 liters, so that your family will never run out of fresh water. Its long filter life of 6000 liters is more than double that of ROs.Some of the other features of the best water filter for home include High-speed purification up to 24LPH, 7-stage purification, Membrane protector, 100% food-grade plastic, Premium design and aesthetics, and more. 

    Specifications 

    • Package Information: ‎Dispenser
    • Installation Type: ‎Wall Mounted, Countertop
    • Power Source: ‎Corded Electric
    • Item Weight: ‎10500 Grams
    • Model Name: ‎Eco Water Saver
    • Maximum Flow Rate: ‎24 Liters Per Hour
    • Upper Temperature Rating: ‎40 Degrees Celsius

    Pros

    • Smartsense Indicators
    • Mineral Enhancer Cartridge that enriched essential minerals like calcium and magnesium. 

    Cons

    • A few customers found a water leakage issue.
    05

What to Look for in Water Purifiers for Hard Water?

Hard water can deteriorate your health and may contain certain contaminants, so RO and UV water purifiers for home are effective options. In India, many areas have water sources such as borewells over 500 ppm, or higher, so look at the popular types of best home water purifiers that deliver clean and safe drinking water. Key features to look for in water purifiers for hard water:- For hard water, a purifier should have robust multistage filtration that effectively removes minerals and dissolved solids. Also, look for features like TDS level monitoring, capacity for high TDS, and potential for alkaline water.

Types of Water Purifiers

  • RO Water purifiers: It is a great purification technology for hard or soft water simultaneously. This purification helps to remove contaminants like bacteria and viruses easily while retaining essential nutrients.
  • UV water purifiers: An ultraviolet water purifier is designed to disinfect the water by using UV rays. It eliminates the harmful microorganisms such as bacteria, viruses, and parasites present in the water, making it pure and safe for consumption. But it is not an ideal choice for hard water. 
  • UF water purifiers: UF stands for ultrafiltration technology that uses fine membranes to remove larger particles, microorganisms, and suspended solids from water. This type of purifier may not be an ideal option for hard water. 

Read more: Water Purifiers You Don't Want To Miss In 2025?

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Faq's

  • Which water purifier is best for home use?
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    Some of the top water purifier brands include KENT Supreme RO Water Purifier, Aquaguard Sure Delight NXT RO+UV Water Purifier, and more.
  • Does UF reduce TDS?
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    No, UF (ultrafiltration) generally does not reduce TDS (total dissolved solids) in water. The UF filtration system primarily removes suspended solids, bacteria, and other larger impurities.
  • Which type of water purifier is best?
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    The top water filter for hard water, the reverse osmosis filtration system, is recommended for effective purification. However, for soft water, a UV technology system is sufficient to eliminate microorganisms like harmful bacteria, viruses, and protozoa.
  • What are the top models of water filters for hard water?
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    KENT Supreme RO Water Purifier, Aquaguard Sure Delight NXT RO+UV Water Purifier, Havells AQUAS Water Purifier (White and Blue), RO+UF, Copper+Zinc+Minerals, 5-Stage Purification, and more.