Water Purifiers
Filter Replacements
Filter Replacements · ₹1,400 – ₹3,500 per set
AO Smith X2 UV Filter Replacement: Every Stage Explained (2026)
By Bikram Nath · Updated 2026-06-28 · How we pick · Affiliate disclosure: links earn a small commission
What's the best ao smith x2 uv filter replacement to buy in India?
Where do I buy a genuine AO Smith X2 UV filter replacement in India? AO Smith authorised service is the safer route because the X2 UV uses a proprietary MIN-TECH snap-fit cartridge — only 2–3 reputable compatibles exist (Aquadart, Konvio Neer) and fit quality varies.
India’s BIS drinking-water standard, IS 10500, sets the acceptable limit for total dissolved solids (TDS) at 500 mg/L — relaxed to 2000 mg/L only where no better source exists — with an acceptable pH range of 6.5–8.5; a purifier’s job is to bring your source water within these limits. BIS IS 10500:2012 (opens in new tab)
Genuine full cycle ₹2,400–₹3,500; DIY with compatibles ₹1,400–₹2,200. The X2 UV is built for municipal supply at TDS below 500 ppm; if your tap reads above 500, no cartridge swap fixes that — you've got the wrong unit. Check input TDS with a ₹200 meter before ordering anything. Owner pattern-reads flag two recurring issues: cross-bought parts from Z-series units that don't thread, and counterfeit MIN-TECH listings under ₹600 that ship inert media. Walk into a Croma or Vijay Sales authorised dealer for genuine packaging confirmation — Aquaguard, Kent, and HUL Pureit dealers don't stock AO Smith spares, so you'll need an AO Smith-specific store. Sasta nahi, pakka.
AO Smith Genuine MIN-TECH Cartridge for X2 UV
Best OEM — and the safest choice given the proprietary cartridge format.
Affiliate links — we may earn a commission. Your price stays identical.
Buying the cartridges, not doing the replacement?
This guide lists which cartridges to buy. The step-by-step replacement procedure is on a separate page — How to Replace RO Water Purifier Filters — 6 steps, ~60 minutes, no plumber needed.
Quick Comparison
| # | Product | Best for | Brand | Price | Link |
|---|---|---|---|---|---|
| 1 | AO Smith Genuine MIN-TECH Cartridge for X2 UV | OEM Choice | AO Smith | Check price on Amazon | |
| 2 | AO Smith Genuine UV Lamp for X2 UV | Most Trusted | AO Smith | Check price on Amazon | |
| 3 | Aquadart Compatible Cartridge for AO Smith X2 UV | Best Value | Aquadart | Check price on Amazon | |
| 4 | AO Smith Genuine UF Cartridge for X2 UV | — | AO Smith | Check price on Amazon | |
| 5 | Konvio Neer Compatible All-in-One for AO Smith X2 UV | — | Konvio Neer | Check price on Amazon |
Our Top Picks
AO Smith Genuine MIN-TECH Cartridge for X2 UV
AO Smith
OEM ChoiceCartridges included
1 (MIN-TECH all-in-one cartridge)
Service life
~6000 L / 12 months
Compatibility
AO Smith X2 UV
OEM
Yes
Pros
- ✓AO Smith-genuine, correct MIN-TECH snap-fit
- ✓Consistent carbon grade
- ✓Preserves warranty
- ✓Bundles sediment + carbon in one cartridge
Cons
- ✗UV lamp, UF sold separately
- ✗Premium over the few compatible options
- ✗Proprietary format — only AO Smith fit
“Best OEM — and the safest choice given the proprietary cartridge format.”
Check price on Amazon
AO Smith Genuine UV Lamp for X2 UV
AO Smith
Most TrustedCartridges included
1 (UV lamp 11W)
Service life
~6,000 hours / 12 months
Compatibility
AO Smith X2 UV
OEM
Yes
Pros
- ✓Correct 254 nm spectrum for microbial kill
- ✓Matches X2 UV chamber wattage exactly
- ✓12-month replacement warranty
- ✓Drop-in install
Cons
- ✗Premium over generic lamps (limited compatibles anyway)
- ✗Quartz sleeve sold separately
- ✗Run on stabiliser for full rated life
“UV is safety-critical — OEM only. Not the stage to economise.”
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Aquadart Compatible Cartridge for AO Smith X2 UV
Aquadart
Best ValueCartridges included
1 (Compatible all-in-one)
Service life
12 months
Compatibility
AO Smith X2 UV (verify sub-variant before order)
OEM
No (Compatible)
Pros
- ✓One of the few compatibles for the proprietary format
- ✓Roughly 45% cheaper than OEM
- ✓Adequate for clean municipal water
- ✓Wider seller inventory than Konvio on this fit
Cons
- ✗Snap-fit tolerance varies — some listings don't click cleanly
- ✗Voids AMC
- ✗Carbon grade below OEM
“Cheapest compatible cartridge. Check return policy before buying — fit-check on arrival is essential.”
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AO Smith Genuine UF Cartridge for X2 UV
AO Smith
Cartridges included
1 (UF cartridge)
Service life
~24 months
Compatibility
AO Smith X2 UV
OEM
Yes
Pros
- ✓Genuine UF hollow-fibre for final microbial polish
- ✓Proprietary fit — no compatible alternative recommended
- ✓2-year service life fits annual refresh cycles
- ✓AO Smith 12-month replacement warranty
Cons
- ✗Often skipped by DIYers — buried stage
- ✗Higher cost per month than main cartridge
- ✗No generic alternatives
“Essential long-life stage. Don't skip at 24-month mark.”
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Konvio Neer Compatible All-in-One for AO Smith X2 UV
Konvio Neer
Cartridges included
1 (Compatible all-in-one)
Service life
12 months
Compatibility
AO Smith X2 UV
OEM
No (Compatible)
Pros
- ✓Cheapest compatible for X2 UV
- ✓Available across India
- ✓Adequate on clean municipal TDS < 400
- ✓Easy reorder
Cons
- ✗Snap-fit can be loose — some batch reports of leaks
- ✗Carbon grade lower than OEM
- ✗Voids AMC
“Cheapest option but verify fit on arrival. Use only on low-TDS municipal supply.”
Check price on Amazon
Prices shown are pulled live from Amazon.in and refresh through the day. Amazon prices and availability change frequently — the price on the Amazon product page at the time of purchase is the one that applies. As an Amazon Associate, PakkaPick earns from qualifying purchases; your price is unaffected.
Editor's read
AO Smith's X2 UV is a pain to stock spares for because of that proprietary MIN-TECH snap-fit format, but here's the thing: stick with genuine cartridges and you won't regret it. The AO Smith Genuine MIN-TECH Cartridge costs roughly 45% more than Aquadart's compatible version, but it's worth every rupee if you're still under the 3-year tank warranty. That UV lamp especially—11W at precisely 254 nanometres—isn't something to cheap out on when you're dealing with monsoon season tap water quality in metro areas where TDS swings between 200 and 450. Compatibles fit eventually, but expect wrestling with installation. Buy genuine, swap every 12 months, keep your warranty intact.
— Bikram, editor
Editor's take
UV purifiers in India work only for municipal water under 200 TDS — they kill bacteria and viruses but don't remove dissolved salts, heavy metals, or pesticides. AO Smith and Aquadart UV models are ₹8,000-15,000 cheaper than RO and don't waste water, making them the correct choice for metro city municipal supply, not the RO that brands upsell.
Further reading
How we picked these filter replacements
Every pick on this page starts from real shopper questions, not Amazon's bestseller rankings. We favour products with a deep, stable base of genuine Indian reviews over brand-new listings or ones with only a handful of ratings, and we cross-check the specs that matter for Indian conditions against manufacturer and expert sources. Our picks are researched from published specifications, expert reviews and aggregate buyer feedback — not hands-on lab testing — so we focus on telling you what to weigh for your situation rather than claiming to have bench-tested every unit.
Pricing on this page reflects realistic Amazon India retail. We ignore one-day flash deals, Prime-Day-only discounts, and stabilised retailer-only coupons that don't hold for someone shopping on a normal Tuesday. The ₹1,400 – ₹3,500 per setband is what you'll actually pay if you walk into this listing today, not the cherry-picked best-discount value.
Our editorial process is one person — Bikram, based in Pune — researching water purifiers products against Indian use-case constraints (voltage variability, hard water in many cities, monsoon humidity, smaller flat sizes than Western default). The order of products on this page reflects our editorial ranking only. We do not accept paid placements, sponsored slots, or PR-pitched products. Our only commercial relationship is the Amazon affiliate link — clicking through earns a small commission, your price stays identical.
Standards & sources
- BIS IS 10500 — Drinking Water Specification (opens in new tab) — India's drinking-water quality limits are defined by BIS standard IS 10500 — a purifier's job is to bring your source water within these limits.
- Bureau of Indian Standards (BIS) — product registration (opens in new tab) — Many electronic goods sold in India require BIS registration for safety; you can look up a product's BIS registration on the BIS portal.
Buying filter replacements in India — what to know
- Indian retail vs imported products: Most filter replacements listed here have official Indian distributor warranty. Imported (grey market / parallel import) units are sometimes cheaper but carry no Indian service-centre warranty — for water purifiers, that gap is meaningful since service infrastructure varies sharply between metros and tier-2 cities.
- Voltage and electrical compatibility: Indian mains is 230V at 50Hz with notable fluctuation outside metros. Most filter replacements in this category aren't voltage-sensitive, but verify the product page mentions Indian voltage compatibility before importing or buying grey-market units.
- Delivery realities: Amazon India Prime delivery in metros lands in 1-2 days; tier-2 cities 3-5 days; remote pincodes 5-7. For festive periods (Diwali week, Raksha Bandhan, year-end), even Prime delivery slips by 1-2 days due to demand surges. Build that buffer into your purchase timing if the ao smith x2 uv filter replacement is for a specific date.
- Return window math: Standard Amazon India return window is 7-10 days from delivery, not from purchase or unboxing. For gifts and items received before the actual occasion, the return clock starts on delivery — order closer to your need-by date so the return option remains live if the product disappoints.
- Warranty registration: Most water purifiersbrands require online warranty registration within 7-15 days of delivery. Skipping this step often means the warranty period defaults to the manufacturing date (which can be months earlier) instead of your delivery date. Register on the brand's website with your invoice number — takes 2 minutes, saves a potential 1-3 month warranty gap.
- Stabiliser / surge protection: India's grid sees more voltage events than most product engineering tolerances assume. For filter replacements with electronic components, the 70–140 additional spend on a quality stabiliser pays for itself the first time it saves you from a power-surge replacement.
We Also Considered
Solid alternatives we evaluated. They didn't beat our top picks for this specific use case, but they're worth a look if your priorities differ.
Wellon Compatible Cartridge Set for AO Smith X2
View on Amazon →Housing threads fit but the snap-lock retention is looser than Aquadart — works on older X2 UV units but not recommended for the 2023+ revision with tighter tolerances.
Hi-Tech 11W UV Lamp Universal
View on Amazon →Cheaper UV lamp alternative but the quartz sleeve diameter is 1mm narrower than AO Smith's spec — intermittent contact issues reported after 6 months in high-humidity kitchens.
What to Look For
- 1.Verify the variant. AO Smith sells X2 UV, X2 UV+, X7, Z2, Z7 — cartridge formats differ substantially. X2 UV specifically uses the MIN-TECH snap-in format. Order only X2-UV-specific parts; cross-buying from other AO Smith models won't fit.
- 2.Genuine vs compatible — narrower choice than other brands. AO Smith's proprietary cartridge format means only 2–3 compatible brands exist (Aquadart, Konvio Neer) and their fit quality varies. If the unit is under warranty, stick with AO Smith genuine. Out of warranty, compatibles work but expect more install friction.
- 3.Installation. X2 UV is a top-access unit — lift the top cover (two release tabs at the rear). The MIN-TECH cartridge snaps vertically in/out; no threaded housing, which is a blessing and a curse. Unplug and drain tank before touching anything. The UV chamber is behind the cartridge column, accessed from the side panel.
- 4.Warranty. AO Smith offers 1-year comprehensive + 3-year warranty on the storage tank. Optional AMC ₹3,000–₹4,500/year. DIY cartridge swap with genuine parts doesn't void warranty; compatibles do void parts warranty. Tank warranty is unaffected by cartridge choice.
- 5.Check input TDS before buying any cartridge. If your tap TDS is above 500, the X2 UV's non-RO design cannot handle your water and no cartridge change fixes it. This is a use-case mismatch, not a part failure. Switch to a Z-series RO-based AO Smith or a different brand's RO unit.
- 6.When to stop DIY. If the MIN-TECH cartridge doesn't click cleanly into place, it's the wrong variant — do not force it. Electronics damage from forcing cartridges is the most common DIY failure on X2 UV. If the UV indicator stays red after lamp swap, the lamp may be correctly replaced but the counter needs service-visit reset.
Frequently Asked Questions
Is the AO Smith X2 UV MIN-TECH cartridge compatible with the X2+ or X3 models?
No. The MIN-TECH snap-fit cartridge is designed specifically for the AO Smith X2 UV and is not cross-compatible with the X2+ or X3 series, which use different filter housings. Using the wrong cartridge can cause improper sealing and filtration failure. Always verify your exact model number printed on the unit before ordering a replacement.
Which seller on Amazon.in stocks genuine AO Smith X2 UV filter replacements?
AO Smith India's official brand store on Amazon.in (sold and dispatched by the brand directly) is the most reliable source. Third-party listings for the same cartridge frequently include counterfeit or incompatible units without BIS certification. Prices from the official store typically range from ₹1,449 to ₹1,699 per cartridge set, varying by promotion period.
Does AO Smith India offer an annual maintenance contract covering X2 UV filter replacements?
Yes. AO Smith India offers AMC plans through its authorised service network that typically cover one scheduled filter replacement per year along with a service visit. AMC pricing varies by city tier — metro rates are generally higher than Tier 2 cities. Contacting AO Smith's customer care (1800 number) directly gives you city-specific AMC quotes; rates are not listed publicly on their website.
How many months does the AO Smith X2 UV filter cartridge last in a hard-water area like Delhi or Jaipur?
AO Smith recommends replacing the X2 UV cartridge every 12 months under standard conditions, but in high-TDS areas like Delhi or Jaipur — where TDS commonly exceeds 500 ppm — the sediment pre-filter stage typically clogs faster, reducing effective life to around 8–10 months. Monitoring the filter-change indicator on the unit is the most reliable guide regardless of geography.
How long does Amazon India take to deliver filter replacements?
Amazon Prime members in metros (Mumbai, Delhi, Bangalore, Pune, Chennai, Hyderabad, Kolkata, Ahmedabad) typically get 1-2 day delivery. Tier-2 cities take 3-5 days. Remote pincodes (parts of North-East, interior Himachal, smaller towns in MP and Odisha) take 5-7 days. For filter replacements, we recommend verifying delivery date on the Amazon listing before checkout — bulkier water purifiers items occasionally take longer than the displayed Prime estimate.
Are these filter replacements available with No-Cost EMI on Amazon India?
Most products in the ₹1,400 – ₹3,500 per set range qualify for No-Cost EMI on Amazon India when you check out with a credit card from HDFC, ICICI, Axis, SBI, or Kotak Mahindra. Some debit cards from these banks also work. The exact EMI options appear on the product page after you select a payment method — typically 3, 6, 9 month no-cost terms for ₹1,400 – ₹3,500 per set, with longer 12-24 month terms available at small interest. Amazon Pay Later is also an option for orders under ₹60,000.
Can I return filter replacements on Amazon if they don't work as expected?
Most filter replacements on Amazon.in have a 7-10 day return window from delivery date for replacement or refund, provided the item is unused and in original packaging with all accessories. Personal-care and consumable items are typically non-returnable once the seal is broken. For appliances and electronics, the manufacturer warranty (usually 1-2 years) covers defects beyond Amazon's return window — register the product with the brand within 7 days of delivery to lock in the warranty start date.
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Top Pick
AO Smith Genuine MIN-TECH Cartridge for X2 UV