Description
✅ 1-Year Comprehensive Warranty + 3-Year FREE AMC — Authorised Kent Partner · 100% Genuine · Mahajan Electronics Since 1981
Backed by Kent's nationwide service network. Made in India. 24-hour delivery Delhi NCR. GST invoice available.
5-Stage purification. In-Tank UV LED keeps stored water pure.
Mineral RO™ retains essential minerals. Save Water Technology.
9L. 20 LPH. Wall-Mount. 1-Year Warranty + 3-Year FREE AMC.
The Kent Grand Plus ZWWRO is India's trusted 5-stage water purifier — RO removes dissolved salts, heavy metals, arsenic, and fluoride; UV eliminates bacteria and viruses; UF filters fine particles and cysts; TDS Control with Mineral RO™ retains essential minerals for healthy tasting water; In-Tank UV LED continuously disinfects stored water even between purification cycles. Save Water Technology recovers 50%+ of inlet water. Suitable for brackish, borewell, tanker, and municipal sources. Made in India.
💧 Complete purification — from dissolved metals to stored-water contamination
Stage 1 — RO
Reverse Osmosis membrane. Removes dissolved salts, heavy metals (lead, arsenic, mercury), fluoride, nitrates, pesticides, and industrial chemicals. Nothing else removes dissolved solids.
Stage 2 — UV
Ultraviolet lamp (254nm). Destroys DNA of bacteria, viruses, and microorganisms — renders them unable to reproduce. Kills what RO membrane alone may not fully eliminate.
Stage 3 — UF
Ultra Filtration hollow fibre membrane. Physically blocks fine suspended particles, sediment, and cysts (Giardia, Cryptosporidium) — provides backup filtration without electricity.
Stage 4 — TDS Control
Mineral RO™ Technology. Blends a small portion of UF-filtered water back into RO permeate to restore essential minerals (calcium, magnesium) — pure water with healthy mineral content.
Stage 5 — In-Tank UV LED
UV LED inside the 9L storage tank continuously disinfects stored water. Prevents re-contamination from bacteria that may enter during dispensing or develop in stored water over time.
In-Tank UV LED — the feature that solves the problem every standard RO purifier has but doesn't mention
Standard RO+UV+UF water purifiers purify water as it passes through the system — the UV lamp irradiates water in the purification chamber, killing bacteria and viruses in that instant. The purified water then flows into the storage tank, where it sits until dispensed. The storage tank is the vulnerability: it is a closed but not hermetically sealed container, and every time the tap is opened to dispense water, a small amount of ambient air (containing airborne bacteria and dust particles) enters the tank to fill the displaced volume. Over 6–12 hours of storage, bacteria from this ambient air contamination can begin to multiply in the stored water — particularly in warm Indian ambient temperatures (25–40°C) that accelerate bacterial growth. A family that purifies water in the evening and dispenses from the same tank the next morning may be drinking water that was microbiologically clean when purified but has developed bacterial contamination during overnight storage. The Kent Grand Plus ZWWRO's In-Tank UV LED directly addresses this: an ultraviolet LED light source positioned inside the 9L storage tank continuously irradiates the stored water, maintaining bactericidal UV exposure throughout the storage period — not just at the moment of purification. The UV LED operates at 254nm wavelength, the peak germicidal absorption wavelength for DNA damage in microorganisms, and is energy-efficient enough (LEDs consume far less power than UV lamps) to run continuously without meaningful electricity cost. For a family drinking from stored water at different times through the day — morning, afternoon, evening — the In-Tank UV LED ensures every glass drawn from the tank has the same microbiological safety as water purified moments before.
Mineral RO™ Technology — why pure RO water is not the same as healthy drinking water
Reverse Osmosis is the most effective residential water purification technology for dissolved contaminants — its semi-permeable membrane rejects approximately 95–99% of dissolved solids, including calcium, magnesium, sodium, potassium, fluoride, arsenic, nitrates, and heavy metals. The problem with this comprehensive rejection is that calcium and magnesium are essential dietary minerals that humans obtain partly from drinking water — WHO guidelines note that drinking water should ideally contribute 10–20% of daily calcium and magnesium intake, and that demineralised water consumed over long periods may be associated with increased cardiovascular risk and mineral deficiency, particularly in populations with borderline dietary mineral intake. Pure RO permeate (TDS typically below 20 ppm) has a slightly acidic pH and an aggressive chemistry that can leach minerals from the body and from the materials of containers and pipes it contacts. Kent's Mineral RO™ Technology solves this by using the TDS Controller — a valve that blends a precisely calibrated volume of UF-filtered water (which retains dissolved minerals because it uses size-based filtration, not osmotic pressure) back into the RO permeate before it enters the storage tank. The blending ratio is adjustable: the TDS Controller can be set to achieve a final stored-water TDS in the range of 80–150 ppm — the WHO recommended range for healthy drinking water that balances mineral content with safety. The result is water that has had dissolved contaminants removed by RO but retains the calcium and magnesium that make drinking water nutritionally beneficial rather than merely chemically inert.
Save Water Technology — addressing RO's biggest environmental criticism
Conventional RO purifiers have a fundamental inefficiency: for every litre of purified water produced, the RO process rejects and drains 2–4 litres of concentrate (the dissolved solids removed from the inlet water must be flushed away in a higher-salinity reject stream). A family consuming 9 litres of purified water per day with a conventional RO purifier wastes 18–36 litres of water daily to drainage — in a water-scarce city like Delhi NCR, where per-capita water availability continues to decline annually, this waste is both environmentally significant and increasingly costly as municipal water tariffs rise. Kent's Save Water Technology improves the RO recovery ratio — the proportion of inlet water that becomes purified permeate vs reject — to above 50%. This means for every 2 litres of inlet water, more than 1 litre becomes purified water rather than the conventional ratio of 1 litre purified from 3 litres inlet. The practical benefit: daily water waste drops from 18–36 litres to approximately 9 litres for the same daily consumption. Additionally, the reject water from a Save Water system (while unsuitable for drinking due to elevated TDS) is not contaminated — it contains only the minerals and salts that were in the inlet water at higher concentration. Kent specifically notes that reject water can be reused for mopping, utensil washing, and garden irrigation — converting water that would be drained to useful secondary applications and further reducing the effective waste footprint of daily purification.
Delhi NCR water quality — why multi-stage purification is not optional for this geography
Delhi NCR's drinking water supply presents a combination of challenges that makes the Kent Grand Plus ZWWRO's 5-stage purification specifically relevant. Municipal (DJB) piped water in Delhi has documented issues with high turbidity during monsoon season, coliform contamination from distribution network leakages (Delhi's aging pipe network has leakage rates estimated at 30–40% of supply), and elevated TDS in ground-level supply in parts of West and South Delhi where the supply mixes with local groundwater. Borewell water in the NCR periphery (Gurgaon, Noida, Faridabad, Ghaziabad) contains elevated arsenic in some sectors (as documented in CGWB surveys of the Yamuna floodplain aquifer), fluoride above BIS limits in parts of Haryana supply zones, and iron from corroded borewell casings. The Kent Grand Plus ZWWRO addresses each of these specifically: RO removes arsenic, fluoride, and elevated TDS; UV eliminates coliform bacteria from distribution network contamination; UF handles turbidity and sediment; TDS Control maintains a palatable mineral balance regardless of wide variation in inlet TDS (which can range from 200 ppm in some DJB zones to 1500+ ppm in some borewell areas — the RO membrane handles both). For households receiving tanker water (where source quality is entirely uncertain and contamination during tanker cleaning and delivery is common), the 5-stage system provides the most comprehensive protection achievable in a residential RO product.
🚰 Purifies water from all Indian sources
Municipal / DJB
Treats coliform, turbidity, chlorine
Borewell
Removes arsenic, fluoride, iron, high TDS
Tanker Water
Unknown source — 5-stage handles all risks
Brackish Water
Elevated dissolved salts — RO primary defence
Hard Water
High calcium/magnesium — RO + TDS balance
Office / Building Supply
Rooftop tank, aging pipes — UV + UF essential
Water Level Indicator
Visual indicator on the 9L tank shows current stored water level — know when to run purification before the tank runs dry, especially useful before guests arrive or before electricity outages.
Wall-Mount Design
Mounts on kitchen wall — preserves counter space in compact Indian kitchens. 26×52×41 cm footprint. Space-saving without sacrificing the 9L tank capacity needed for uninterrupted supply in a 4–6 member household.
Power-Cut Storage Buffer
9L stored purified water ensures continued supply during Delhi NCR's power outages — the stored buffer covers a typical 4–6 member family's drinking and cooking water needs for 12–18 hours without power.
Made in India + Kent Service
Manufactured in India for Indian water conditions. Kent's nationwide service network with local Delhi NCR technicians covers warranty and AMC calls — faster response than imported brand service logistics.
🎯 Ideal for
| Brand | Kent |
| Model | Grand Plus ZWWRO |
| Purification | RO + UV + UF + TDS Control + In-Tank UV LED |
| Special technology | Mineral RO™ (patented) · Save Water Technology |
| Storage capacity | 9 Litres |
| Purification rate | 20 Litres per Hour |
| Water recovery | More than 50% (Save Water Technology) |
| Installation | Wall Mount |
| Water level indicator | Yes |
| Suitable for | Brackish · Borewell · Tanker · Tap · Municipal |
| Dimensions (W×H×D) | 26 × 52 × 41 cm |
| Weight | 9 kg |
| Colour | White |
| Country of origin | Made in India |
| Warranty | 1 Year Comprehensive Product Warranty |
| Free AMC | 3 Years Extended Service — Included |
🛡️ 1-Year Warranty + 3-Year FREE AMC
RO+UV+UF+TDS+In-Tank UV LED. Mineral RO™. 9L. 20LPH. Save Water. 1-Yr Warranty + 3-Yr FREE AMC. Order today.
5-stage purification with In-Tank UV LED for continuously safe stored water. Made in India. 24-hour delivery Delhi NCR. Genuine Kent — Mahajan Electronics since 1979.
50%+ water recovery under standard test conditions. Actual recovery varies with inlet water TDS and pressure. Reject water reuse suitability depends on inlet TDS — verify before use on sensitive plants. AMC terms as per Kent service policy. Product image for reference. Made in India.
| Contry Of Origin - India |