Blue Star Prisma 4.2 L RO + UV Water Purifier

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7.6 Total Score

Rs. 15,590 Rs. 24,900

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  • Hot, Cold & Normal Water
  • 1-Litre Smart Selection
  • Taste Enhancer
  • Less Water Wastage

Features of Blue Star Prisma 4.2 Litre RO + UV Water Purifier

  • Technology: 5 Stage RO+UV Water Purification.
  • Storage Capacity: 4.2 Litres
  • Purification Capacity: Approximately 10 Litres/Hour.
  • Hot, Cold and Normal Water: Dispense hot, cold or normal room temperature water with just a click of a button.
  • Other Features:Anti Stagnant Ripple Technology, 1-litre Smart Selection, Touch Sensors, Electronic Dispensing Button, Taste Enhancer, Tank Full Indicator and more.
  • Warranty: 1 Year Manufacturer Warranty from Blue Star.

Smart Features of Blue Star Prisma

Double Layered RO + UV ProtectionRO+UV Protection
Double layered RO + UV protection ensures that the water you drink is absolutely safe. While RO removes dissolved impurities, micro organisms, heavy metals and radioactive matter, UV deactivates micro organisms such as bacteria, viruses and cysts.

Super Fine Sediment FilterSuper Fine Sediment Filter
1st stage of purification uses a super fine sediment filter of 5 microns which removes even the finest of sand, mud, dust and other suspended particles.

Compact and StylishCompact and Stylish
Blue Star Prisma not only boasts of impressive features but also looks compact and stylish. Prisma will enhance the aesthetics of your kitchen.

RO Membrane Capacity up to 250 Litres Per DayPurification Capacity of 250 litres/day
The super-efficient and high quality RO membrane of Blue Star Prisma offers purification capacity of up to 250 litres/day.

4.2 Litres Compact TankCompact Water Storage Tank
Blue Star Prisma features a compact tank of 4.2 litres which not only saves the much needed kitchen space but is also sufficient for a small family.

Anti Stagnant TechnologyAnti Stagnant Ripple Technology
One of the common problems, with most RO purifiers available in the market, is the formation of slime in the water tank if the purified water is left unused for long. Anti stagnant ripple technology, which is a patented technology, ensures that the water in the tank is not stagnant. This prevents the formation of slime and keeps the water fresh for long.

5 Stage Purification5 Stage Purification
Blue Star Prisma uses a proven 5 stage purification process to ensure that every drop of water that you drink is safe and pure. The 5 stages are: a sediment filter, pre-carbon filter, RO membrane, post-carbon filter and UV Lamp.

Purification Process of Blue Star Prisma

Purification Process of Blue Star Prisma

Ultra High TDS RemovalHigh TDS Removal
Worried about the high TDS in your input water. Worry no more, as Blue Star Prisma offers TDS removal of up to 96%. This means that the purified water that you get in safe and pure even with high levels of dissolved impurities in the input water.

1-litre Smart Selection1 Litre Smart Selection
This water purifier comes with a smart feature that lets you dispense 1-litre of purified water at a single press of a button. No more holding the tap and no more worrying about the overflow and wastage of purified water.

Superior Water Recovery of up to 33%Less Water Wastage
Blue Star Prisma also addresses the most common problem of using a RO water purifier that of wastage of water. With superior water recovery of up to 33%, Blue Star Prisma minimizes water wastage and helps in the conservation of water.


Hot, Cold and Normal WaterHot Cold Temperature Settings
Another great feature of Blue Star Prisma is the inbuilt feature to select whether you want to dispense hot, cold or normal room temperature water. This feature is very beneficial, in summers you can dispense cold water and drink/serve right away without the need of refrigerator. If you prefer to drink lukewarm water in winters then you can dispense hot water without any need of boiling the purified water.

Touch SensorsTouch Sensors
Touch sensors lets you make a quick and easy selection between cold, hot and room temperature options.

Electronic Dispensing ButtonElectronic Dispensing Button
Most RO purifiers available in the Indian market come with a manual tap for dispensing water, Blue Star Prisma scores over all its competitors here as well as it offers an Electronic dispensing button which is easy and convenient to operate.

Taste EnhancerTaste Enhancer
Even purified water can sometimes taste awful and smell awkard. Taste Enhancer functionality of Blue Star Prisma ensures that every drop of water that you drink is refreshing and pure by removing odour and volatile organic compounds.

Tank Full IndicatorTank Full Indicator
This one is the most basic function that most RO purifiers come with. Tank full indicator glows when the purified water storage tank is full.

Device Specifications
Model Name Stella
Storage Tank Capacity 4.2 L
Purifying Technology RO + UV
Filter Type Sediment Filter, Pre-Carbon Filter, RO Membrane, UV Lamp, Post-Carbon Filter
Membrane Type RO Membrane
Storage Tank Material ABS
Electrical Type  Electrical & Storage
Operating Voltage 220 V
Installation Type Table Top Mounting
Width 28 cm
Height 41.2 cm
Depth 35 cm
Net weight 9.3 kgs

A perfect affordable RO + UV water purifier by popular brand Blue Star.

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7.6 Total Score
Water Purifier for Low TDS Water

Storage Capacity
Purification Capacity
Purification Quality
Price & Discount
Installation, Warranty & Service
  • Hot, Cold & Normal Water
  • 1-Litre Smart Selection
  • Taste Enhancer
  • Less Water Wastage
  • Limited Storage Capacity of 4.2 Litres
  • Can't Dispense Water without Electricity
User Rating: 5 (2 votes)
1 Comment
  1. This water purifier is amazing. Amazing RO+UV technology with hot, cold water dispenser. I really like it.

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