By home type · Lucknow
TDS and AQI figures on this page are indicative planning ranges compiled from publicly reported patterns for this city — not live readings. Actual values vary by locality, borewell depth and season. Test your own supply with a TDS meter (around ₹300), and get a laboratory analysis if you suspect arsenic, fluoride, nitrate or iron.
Apartment water in Lucknow has a specific problem that independent houses do not share: you are not connected to one source. Most societies here blend the municipal line with a building borewell and top up with tankers when either falls short. That is why your TDS is a moving target and why nobody in the building can tell you what it is this week. City-wide, supply runs 350-850 ppm from municipal supply blended with borewell water.
That argues for two specifications. A TDS controller, so you can adapt as the blend shifts rather than being locked to one ratio set on installation day. And a membrane rated above the worst case — 2,000 ppm for Lucknow — because designing for the average leaves you unprotected in the months when the tankers arrive.
The second apartment constraint is physical. Flat kitchens here are compact and the wall above the sink is already contested by a chimney, a geyser or cabinets. Measure before you order — these units are consistently larger in person than in listing photos. Compact wall-mount models are the default answer; an under-sink unit is the answer in a modular kitchen; a countertop unit is the answer if you rent and cannot drill.
One thing worth raising at your next residents' meeting in Lucknow: if the whole building runs substantially on blended supply with a high-TDS component, a society-level RO plant is dramatically cheaper per litre than 80 households each buying, powering and servicing individual purifiers. The economics improve sharply above about 50 flats.
Scored against Lucknow's supply — 350-850 ppm TDS, hard water.
The default recommendation for Indian borewell water
Copper RO at a price that undercuts everyone
Aquaguard's best-selling all-rounder, now with active copper
HUL's copper RO with an enforced filter-life cut-off
Service-first purifier with app-scheduled maintenance
High-throughput KENT for large families and small offices
Nine stages, copper and alkaline, aggressively bundled
Counter-top KENT with a UV-sterilised tank
Non-negotiable in a Lucknow society. Your input changes when the building switches sources, and a fixed blend ratio will be wrong for part of the year.
Compact full-RO units exist and perform identically to bulky ones. Take the listed dimensions to your kitchen wall with a tape measure before committing — this is the most common post-delivery regret in flats.
Specify 2,000 ppm even if today's reading is lower. In Lucknow, the worst supply a flat sees is usually the tanker, not the mains.
Some buildings restrict drilling on shared or external walls, and some restrict drain connections. Confirm with facilities before delivery — a countertop or under-sink unit sidesteps the issue entirely.
Above roughly 50 flats on high-TDS supply, a society RO plant beats individual purifiers on cost per litre and removes the per-flat service headache. Worth a costing exercise before everyone buys separately.
| # | Product | Price | Score | Max input TDS | Best for |
|---|---|---|---|---|---|
| 1 | KENT Grand Plus | ₹16,499 | 8.9/10 | 2000 ppm | Families on borewell, tanker or high-TDS municipal supply who want the safest all-round choice. |
| 2 | Livpure Zinger Copper | ₹12,990 | 8.2/10 | 2000 ppm | Budget-conscious buyers in cities where Livpure has a strong local service presence. |
| 3 | Aquaguard Delight NXT | ₹17,990 | 8.7/10 | 2000 ppm | Buyers who value service reliability and compact design over maximum tank capacity. |
| 4 | Pureit Copper+ RO | ₹15,999 | 8.4/10 | 2000 ppm | Safety-first households, and anyone who has previously forgotten filter changes. |
| 5 | Native M1 by Urban Company | ₹16,999 | 8.3/10 | 2000 ppm | Metro buyers who have concluded that the real product in this category is the service contract. |
| 6 | KENT Prime TC | ₹15,490 | 8.3/10 | 2000 ppm | Large households and small office pantries that need volume more than features. |
| 7 | Faber Galaxy Pro Plus | ₹14,990 | 8/10 | 2000 ppm | Value hunters in metros who want copper and alkaline features cheaply. |
| 8 | KENT Pearl RO | ₹17,990 | 8.4/10 | 2000 ppm | Renters and anyone who cannot drill walls, but still needs full high-TDS RO purification. |
Prices are indicative street prices, last verified 2026-08-01. Confirm the current price on the marketplace before purchasing.
Whatever you buy from this list, the ownership experience in Lucknowwill be decided by servicing rather than specifications. Phone the brand's customer care with your Lucknow pin code before you order and ask how many days a filter-change request takes. More than two or three days is a reason to choose a different brand.
Free consultation · Pan-India
Tell us your city, your water source and your budget. For homes we will recommend the right technology — including telling you when a ₹3,000 purifier is genuinely enough. For offices, societies and factories, our team will size a system against your water report and send a specification-backed quotation.
Or email betterworkindia@gmail.com — attach a water analysis report and we can quote faster.
Homes
Right-sized recommendation for your TDS, not the most expensive unit
Offices & societies
25 LPH to 2,000+ LPH, sized on headcount and feed water
Industry
Pharma, food, textile, boiler feed — engineered to your specification
Service & AMC
Installation, repair and AMC with written response times