Filter Replacements · ₹1,000 – ₹3,100 per set
Blue Star Aristo RO+UV Filter Replacement Guide (2026)
By Bikram Nath · Updated 2026-04-23 · How we pick · Affiliate disclosure: links earn a small commission
Quick Answer
Our top pick is Blue Star Genuine Filter Kit for Aristo RO+UV — Best OEM baseline for warranty-covered Aristo units.
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.
The Blue Star Aristo RO+UV is a well-regarded mid-range RO unit with a 7-stage treatment: sediment, pre-carbon, carbon block, RO membrane, post-carbon, UV, and taste adjuster. Replaceables: sediment (~6 months), pre-carbon (~6 months), carbon block (~6 months), RO membrane (12–24 months), post-carbon (~12 months), UV lamp (~12 months). Blue Star-genuine full cycle ₹2,100–₹3,100. DIY with compatibles ₹1,000–₹1,700. Honest red flag: the Aristo uses standard-sized housings so compatible fit is usually clean, but Blue Star has fewer authorised-service retail points than Kent or Aquaguard. This means finding genuine Blue Star cartridges locally is harder; most buying happens online. If you're rural, plan ahead — overnight shipping isn't available for many service pincodes.
How we picked these filter replacements
Every pick on this page started from real shopper questions, not Amazon's bestseller rankings. We exclude listings where reviews look incentivised — the patterns we screen for are sudden review spikes timed with coupon launches, brand-comparison templates copy-pasted across multiple variants, and listings under a year old with fewer than 50 organic reviews. Bestseller-tag products in narrow subcategories often game a small basket; we prefer products with deep, stable review history that survived seasonal surges.
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 ₹1,000 – ₹3,100 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.
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 filter replacements 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 5002–10003 additional spend on a quality stabiliser pays for itself the first time it saves you from a power-surge replacement.
Quick Comparison
| # | Product | Brand | Link |
|---|---|---|---|
| 1 | Blue Star Genuine Filter Kit for Aristo RO+UV OEM Choice | Blue Star | Check on Amazon → |
| 2 | Vontron 75 GPD RO Membrane for Blue Star Aristo Best Value | Vontron | Check on Amazon → |
| 3 | Wellon Full Kit for Blue Star Aristo | Wellon | Check on Amazon → |
| 4 | Blue Star Genuine UV Lamp for Aristo Most Trusted | Blue Star | Check on Amazon → |
| 5 | Aquadart Compatible 3-Set for Blue Star Aristo | Aquadart | Check on Amazon → |
Our Top Picks
Blue Star Genuine Filter Kit for Aristo RO+UV
Blue Star
Cartridges included
3 (Sediment + Pre-Carbon + Post-Carbon)
Service life
6–12 months
Compatibility
Blue Star Aristo, Aristo+
OEM
Yes
Pros
- ✓Blue Star-genuine, preserves warranty
- ✓Correct housing thread match
- ✓Consistent carbon grade
- ✓Supports the service-side warranty claim process
Cons
- ✗Membrane and UV lamp sold separately
- ✗Limited local retail inventory
- ✗Premium vs compatibles
“Best OEM baseline for warranty-covered Aristo units.”
Check Latest Price on Amazon →Vontron 75 GPD RO Membrane for Blue Star Aristo
Vontron
Cartridges included
1 (RO Membrane 75 GPD)
Service life
12–24 months
Compatibility
Blue Star Aristo and 75 GPD domestic RO
OEM
No (Compatible)
Pros
- ✓Industry-standard 75 GPD core
- ✓92–96% rejection typical
- ✓Half the price of Blue Star-genuine membrane
- ✓Standard housing fit
Cons
- ✗Voids AMC if any
- ✗Reverse-install error common
- ✗TDS-test required
“Best value membrane for out-of-warranty Aristo.”
Check Latest Price on Amazon →Wellon Full Kit for Blue Star Aristo
Wellon
Cartridges included
4 (Sediment + Pre-Carbon + Post-Carbon + 75 GPD Membrane)
Service life
6–24 months depending on stage
Compatibility
Blue Star Aristo, Aristo+
OEM
No (Compatible)
Pros
- ✓Full annual-cycle kit in one purchase
- ✓Standard thread tolerances
- ✓Cheaper than sum-of-parts
- ✓Good online inventory
Cons
- ✗Voids AMC
- ✗UV lamp sold separately
- ✗Occasional batch-level O-ring variance
“Best full-kit value for out-of-warranty Aristo households.”
Check Latest Price on Amazon →Blue Star Genuine UV Lamp for Aristo
Blue Star
Cartridges included
1 (UV lamp 11W)
Service life
~6,000 hours / 12 months
Compatibility
Blue Star Aristo
OEM
Yes
Pros
- ✓Correct 254 nm spectrum
- ✓Matches Aristo UV chamber wattage
- ✓12-month Blue Star replacement
- ✓Drop-in install
Cons
- ✗Premium vs generic UV lamps
- ✗Quartz sleeve sold separately
- ✗Stabiliser recommended
“OEM UV — safety-critical stage, no compromise.”
Check Latest Price on Amazon →Aquadart Compatible 3-Set for Blue Star Aristo
Aquadart
Cartridges included
3 (Sediment + Pre-Carbon + Post-Carbon)
Service life
6 months
Compatibility
Blue Star Aristo
OEM
No (Compatible)
Pros
- ✓Cheapest 3-cartridge for Aristo
- ✓Standard fit on Aristo housings
- ✓Wide India inventory
- ✓7-day replacement common
Cons
- ✗Lower carbon grade
- ✗Voids AMC
- ✗Not recommended for borewell
“Budget refresh for municipal-supply households.”
Check Latest Price on Amazon →What to Look For
- 1.Confirm the variant. Blue Star shipped Aristo, Aristo+, Aristo Prime, and Aristo Edge — cartridge fits are mostly consistent across them but membrane housings vary slightly between Aristo and Aristo Edge. Check the back-panel sticker and match the model code.
- 2.Blue Star-genuine vs compatible. Blue Star-genuine pricing is moderate, typically 1.4× compatible. For out-of-warranty units, compatibles fit standard housings cleanly. For under-warranty units (especially year 1), stick with genuine to preserve parts coverage. Blue Star's retail reach is thinner than Kent or Aquaguard — online is usually better availability than local stores.
- 3.Installation. Aristo is front-access with a flip-down panel. Unplug and drain tank fully (holds ~8 L). Cartridges are in a left-to-right column. Membrane housing is rightmost. Hand-tight housings only; Blue Star housing threads are standard and tolerant. UV lamp access is from the top-rear cover (two clips).
- 4.Warranty. Blue Star offers 1-year warranty + optional AMC ₹2,800–₹4,000/year. DIY with genuine parts doesn't void warranty. AMC makes economic sense if your unit is in year 1 and you're in a pincode where same-day service is available.
- 5.Regional notes. The Aristo handles input TDS up to ~1800 well. Above that, plan 10–12 month membrane changes. Low-TDS municipal supply can stretch membranes to 24 months. Blue Star's UV chamber is slightly more power-tolerant than Aquaguard's — runs OK without a stabiliser in most city supplies, but one is still recommended for rural voltage dips.
- 6.When to call. If the Aristo's booster pump fails to start after a refresh, check if you unplugged and forgot to plug back in — obvious but happens. If pump runs but no output, the low-pressure switch has tripped; reset via the service panel. If those don't help, call Blue Star Service; don't keep replacing cartridges.
Frequently Asked Questions
What is the best Filter Replacements in India?
The best Filter Replacements in India is the Blue Star Genuine Filter Kit for Aristo RO+UV. Best OEM baseline for warranty-covered Aristo units.
How much does a Filter Replacements cost in India?
Filter Replacements prices in India typically range from ₹1,000 – ₹3,100 per set. Check current prices on Amazon for each pick listed above.
What should I look for when buying a Filter Replacements?
Key factors: Confirm the variant. Blue Star shipped Aristo, Aristo+, Aristo Prime, and Aristo Edge — cartridge fits are mostly consistent across them but membrane housings vary slightly between Aristo and Aristo Edge. Check the back-panel sticker and match the model code. | Blue Star-genuine vs compatible. Blue Star-genuine pricing is moderate, typically 1.4× compatible. For out-of-warranty units, compatibles fit standard housings cleanly. For under-warranty units (especially year 1), stick with genuine to preserve parts coverage. Blue Star's retail reach is thinner than Kent or Aquaguard — online is usually better availability than local stores. | Installation. Aristo is front-access with a flip-down panel. Unplug and drain tank fully (holds ~8 L). Cartridges are in a left-to-right column. Membrane housing is rightmost. Hand-tight housings only; Blue Star housing threads are standard and tolerant. UV lamp access is from the top-rear cover (two clips).
What is a good budget option for Filter Replacements?
Aquadart Compatible 3-Set for Blue Star Aristo is a solid budget choice within this range. Budget refresh for municipal-supply households.
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.
Is the Filter Replacements listed here available with EMI on Amazon India?
Most products in the ₹1,000 – ₹3,100 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 ₹1,000 – ₹3,100 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 it doesn't work as expected?
Most water purifiers products 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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