Automatic TDS
Continuously balances output as the quality of your source water changes.
Ralla / Intelligent water purification
Your water
doctor.
Understand your water. Choose the right care. Meet the intelligent purifier that adapts to your home.
01 / Adaptive by design
Understand first.
Purify thoughtfully.
Every home has a different water story. We start with your source, explain what the readings mean and recommend the right configuration. Adaptive technology then responds as your inlet water changes.
*Performance depends on model, source water and operating conditions.
50–150ppm target range
7stage filtration
<1:1reject-to-purified water ratio*
1 yearcomprehensive warranty
Your water doctor / At home
A real person.
A clearer answer.
A number on a meter is only the beginning. Talk through your source water, everyday needs and the care your purifier will need with someone who can explain it clearly.
02 / Inside Ralla
Built around the
water you drink.
A compact purifier with a clear view of water health, designed to make daily use and long-term care feel simple.
Real-time display
See TDS readings and filter reminders directly on the purifier.
Water-conscious RO
Engineered to reduce reject water compared with conventional RO systems.
Easy serviceability
Accessible filters, clear reminders, and trained support when you need it.
03 / Product architecture
Seven stages.
One quiet system.
Every layer has one job: protect taste, retain the right mineral balance, reduce waste, and keep water health visible.
Sediment, carbon, RO, UV, and mineral protection work as one system.
Automatic TDS control responds as the water arriving at home changes.
Water-quality and purifier-health signals stay visible, not buried inside.
Organised components make routine care clearer and more predictable.
Water savings / A clearer measure
Less down the drain.
More to show for it.
A low reject-to-purified water ratio makes a daily difference. See what 500 ml of reject water per litre purified can mean over a year.
For every 1 litre purified
5 litres30 litres
Less reject water over one year
456
20-litre cans’ worth of water saved
9125 litres, in this example.
Each bottle ≈ 100 × 20-litre cans.
How this estimate works
Daily purified litres × (3 − 0.5) litres of reject water × 365 days ÷ 20 litres per can. The comparison ratio is an example, not a market average. Can equivalents represent water volume, not plastic cans or purchases avoided. Illustrative calculation. Actual rejection varies with the model, inlet water, pressure and operating conditions. Confirm expected performance during your water test.
04 / The Ralla collection
One purpose.
Four ways in.
Every model is designed for Indian water conditions, clear ownership, and easy service. Choose the level of sensing, treatment, and balancing your home needs.
Water Purifier
RWP Basic
- 7-stage filtration
- RO+ protection
- Smart water saving
- Single-hand dispensing
Rs. 7,999.00↗
Water Purifier
RWP Pro Plus
- 7-stage filtration
- RO + UV + MIN protection
- Ca + Mg + Cu + Na minerals
- Low-maintenance design
Rs. 12,999.00↗
Water Purifier
RWP Ultra
- 7-stage filtration
- ATDS health display
- Filter-life reminders
- Energy-efficient operation
Rs. 17,999.00↗
Your water doctor / The process
Care that starts
before the first pour.
A clear route from understanding your source to bringing Ralla home.
- 01
Collect a sample
Book a visit. We confirm availability and collect a sample of the water arriving at your home.
- 02
Understand the report
We explain the findings, what they mean for your source, and which purifier configuration fits.
- 03
Install with confidence
Choose your model. Ralla coordinates installation, checks the setup and walks you through everyday care.
05 / Five-year view
Fewer deliveries.
A clearer cost.
Estimate the difference between buying 20-litre cans at ₹40 and owning RWP Ultra. Adjust your household size.
Estimated 5-year saving₹0
Annual need0 LCans avoided0Can cost₹0
Can-purchase comparison only. Estimate deducts the reference purifier price; it excludes filters, servicing, electricity and source-water costs. Can equivalents do not represent plastic waste avoided.
The Ralla Journal
A little clarity
goes a long way.
Practical reading for choosing a purifier and looking after it.
03 Nov 2026 / Buying guide
The problem with over-purification: why the lowest TDS is not the goal
Why treatment should respond to measured water concerns instead of treating the lowest possible TDS reading as proof of quality.
03 Nov 2026 / Guide
WHO water-quality guidance explained for Indian homes
Understand the difference between global guidance, Indian drinking-water specifications, a TDS reading, and a complete water-quality...
03 Nov 2026 / ATDS
How adaptive TDS technology works in a water purifier
A clear look at sensing, treatment and automatic adjustment when a home receives municipal, borewell, tanker or mixed water.
06 / Support
Before you
bring Ralla home.
Useful answers about your water, your purifier and what happens next.
What does automatic TDS adjustment do?
Ralla monitors output and adjusts the mineral balance as source-water conditions change, aiming for consistent taste without treating every inlet the same way.
Will Ralla work with my water source?
The best configuration depends on inlet TDS and source. A free doorstep water test helps Ralla recommend the right model before installation.
What is included with installation?
Ralla lists free installation support and a comprehensive one-year warranty with its purifiers. A technician helps place and commission the unit.
Is an annual maintenance plan required?
No. The AMC is optional and is designed to make service visits and routine upkeep predictable.
What does a reject-to-purified ratio below 1:1 mean?
It means less than one litre goes to the reject stream for each litre purified. For example, 500 ml rejected per litre purified is a 0.5:1 ratio. Actual results depend on the model, source water and operating conditions.
Start with your water
Meet your
water doctor.
Start with a conversation about the water arriving at your home. Book a complimentary test and get a recommendation you understand.