Filter Replacements · ₹1,100 – ₹3,400 per set
Kent Supreme Plus Filter Replacement: Cartridge-by-Cartridge 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 Kent Original Sediment, Pre-Carbon & Post-Carbon Filter Set for Supreme / Supreme Plus / Grand — Best OEM choice if you're on AMC or under 3 years since purchase. Worth the premium only while warranty still applies.
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 Kent Supreme Plus sits between the Grand Plus (family) and the Superb (premium) in Kent's RO+UV+UF lineup. Good news: the Supreme Plus uses the same sediment, pre-carbon, and post-carbon cartridge family as the Grand Plus and Elegant, so aftermarket availability is strong and you have more pricing options than on the Superb. The consumables are sediment pre-filter (~6 months), pre-carbon (~6 months), post-carbon (~12 months), 75 GPD RO membrane (12–24 months depending on input TDS), and UV lamp (~12 months). A full DIY refresh runs ₹1,100–₹1,900 with compatibles or ₹2,200–₹3,400 with Kent-originals. Authorised AMC costs ₹3,500–₹6,000/year including parts, so one DIY cycle covers a year with money saved. One honest red flag: the Supreme Plus's TDS controller is paired with the membrane — if you swap only the membrane without recalibrating the controller position, the output TDS can read artificially low or high. After a membrane change, test TDS at the tap and adjust the controller per the service card.
Quick Comparison
| # | Product | Brand | Link |
|---|---|---|---|
| 1 | Kent Original Sediment, Pre-Carbon & Post-Carbon Filter Set for Supreme / Supreme Plus / Grand OEM Choice | Kent | Check on Amazon → |
| 2 | Kent Original 75 GPD RO Membrane for Supreme Plus / Grand Plus / Elegant Most Trusted | Kent | Check on Amazon → |
| 3 | Wellon Kent Compatible Full Service Kit (Sediment + Pre-Carbon + Post-Carbon + Membrane) Best Value | Wellon | Check on Amazon → |
| 4 | Vontron 75 GPD RO Membrane — Universal Fit | Vontron | Check on Amazon → |
| 5 | Konvio Neer Compatible Filter Set for Kent Supreme Plus | Konvio Neer | Check on Amazon → |
Our Top Picks
Kent Original Sediment, Pre-Carbon & Post-Carbon Filter Set for Supreme / Supreme Plus / Grand
Kent
Cartridges included
3 (Sediment + Pre-Carbon + Post-Carbon)
Service life
6–12 months
Compatibility
Kent Supreme, Supreme Plus, Grand Plus, Elegant
OEM
Yes
Pros
- ✓Kent-original, preserves AMC warranty
- ✓Tight housing-thread tolerances
- ✓Consistent activated carbon quality
- ✓Fits four Kent models — no variant error
Cons
- ✗RO membrane and UV lamp sold separately
- ✗Priced ~2× compatible alternatives
- ✗No inline installation card — rely on unit manual
“Best OEM choice if you're on AMC or under 3 years since purchase. Worth the premium only while warranty still applies.”
Check Latest Price on Amazon →Kent Original 75 GPD RO Membrane for Supreme Plus / Grand Plus / Elegant
Kent
Cartridges included
1 (RO Membrane 75 GPD)
Service life
12–24 months
Compatibility
Kent Supreme Plus, Grand Plus, Elegant
OEM
Yes
Pros
- ✓Kent-original, rejection rate consistently 96–98%
- ✓Pre-paired with Kent's TDS controller range
- ✓12-month replacement warranty from Kent
- ✓Minimal install hassle — drops into OEM housing cleanly
Cons
- ✗~1.8× the price of a Vontron equivalent
- ✗Expensive if your input TDS is low and membrane rarely fails
“Most trusted membrane for AMC-covered units. Buy compatible if out of warranty and you know your input TDS is moderate.”
Check Latest Price on Amazon →Wellon Kent Compatible Full Service Kit (Sediment + Pre-Carbon + Post-Carbon + Membrane)
Wellon
Cartridges included
4 (Sediment + Pre-Carbon + Post-Carbon + 75 GPD Membrane)
Service life
6–24 months depending on stage
Compatibility
Kent Supreme Plus, Grand Plus, Pristine
OEM
No (Compatible)
Pros
- ✓Full annual-cycle kit at one price
- ✓Roughly ₹1,000 cheaper than buying OEM stages separately
- ✓Wellon is an established Indian aftermarket brand
- ✓Includes basic install diagram
Cons
- ✗Voids Kent AMC
- ✗Occasional O-ring sizing variance — keep a spare
- ✗UV lamp not included
“Best full-kit value for out-of-AMC units. Pairs well with a separate Kent-original UV lamp for the safety-critical stage.”
Check Latest Price on Amazon →Vontron 75 GPD RO Membrane — Universal Fit
Vontron
Cartridges included
1 (RO Membrane 75 GPD)
Service life
12–24 months
Compatibility
Kent Supreme Plus and all 75 GPD domestic RO
OEM
No (Compatible)
Pros
- ✓Industry-standard membrane core — OEM for several brand-labels
- ✓Rejection typically 92–96%
- ✓Half the price of Kent-original membrane
- ✓Widely reviewed in Indian RO forums
Cons
- ✗Voids AMC
- ✗Occasional batch variance — always TDS-test after install
- ✗Install-direction error is the top user complaint
“Value pick for out-of-AMC Supreme Plus. Read the membrane arrow carefully before install.”
Check Latest Price on Amazon →Konvio Neer Compatible Filter Set for Kent Supreme Plus
Konvio Neer
Cartridges included
3 (Sediment + Pre-Carbon + Post-Carbon)
Service life
6 months
Compatibility
Kent Supreme Plus, Grand Plus
OEM
No (Compatible)
Pros
- ✓Lowest cost for a 3-cartridge Kent-compatible set
- ✓Adequate for low-to-moderate municipal TDS
- ✓Good inventory availability across India
- ✓Sellers usually offer 7-day replacement
Cons
- ✗Carbon block quality varies — monitor taste post-install
- ✗Not recommended for high-TDS borewell
- ✗Voids AMC
“Budget option for households on stable municipal supply. Upgrade to Wellon/Vontron if you're on borewell.”
Check Latest Price on Amazon →What to Look For
- 1.Confirm your Supreme Plus sub-variant. Kent shipped Supreme, Supreme Plus, Supreme Extra, and Supreme Lite — only Supreme Plus shares the Grand Plus cartridge threading. The model code is on the sticker under the front flap; match it to the listing before ordering. The wrong sub-variant leads to housing-thread mismatches you can't fix with tape.
- 2.OEM vs compatible — think about AMC, not just price. Kent-originals are ~2× compatible pricing but preserve AMC warranty and have tighter QC. If your Supreme Plus is under 3 years old and still has AMC coverage, stick with Kent-originals; the price gap is less than one non-AMC service visit. Out-of-AMC units can move to Vontron/Wellon safely.
- 3.Installation steps specific to this unit. Turn off the inlet tap and unplug the unit. Drain the tank through the dispenser tap for 30 seconds. Open the front flap, unscrew each housing anticlockwise using the plastic wrench that shipped with the unit. Lubricate the new O-rings with a dab of food-grade silicone grease. Hand-tighten only. Run 10 L of water through post-install to flush carbon dust before drinking.
- 4.Warranty implications. Kent's AMC explicitly covers cartridge replacements if done by their technician; DIY work voids parts warranty. Realistic maths: AMC premium ~₹3,500/year, DIY annual parts ~₹1,800. If the unit is out of AMC and working fine, DIY saves roughly ₹1,700/year — worth it if you're comfortable with plumbing basics.
- 5.TDS regional factors. Pune, Bangalore, and Hyderabad borewell users typically push the membrane to its limit by month 14; change proactively at month 12 to protect downstream carbon. Coastal Chennai/Mumbai benefits from an extra sediment stage (an inline 5-micron before the unit) to extend membrane life. Soft-water Kolkata/Delhi often stretches membranes to 24 months with no issue.
- 6.When to call a technician instead. If a new membrane doesn't drop TDS below 50 after 10 L of flush, the problem is usually the TDS controller or a bypass leak — not another bad membrane. Stop replacing parts and book a service visit. Also call a tech if the booster pump hums but pressure stays low; that's diaphragm or motor, not cartridges.
Frequently Asked Questions
What is the best Filter Replacements in India?
The best Filter Replacements in India is the Kent Original Sediment, Pre-Carbon & Post-Carbon Filter Set for Supreme / Supreme Plus / Grand. Best OEM choice if you're on AMC or under 3 years since purchase. Worth the premium only while warranty still applies.
How much does a Filter Replacements cost in India?
Filter Replacements prices in India typically range from ₹1,100 – ₹3,400 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 your Supreme Plus sub-variant. Kent shipped Supreme, Supreme Plus, Supreme Extra, and Supreme Lite — only Supreme Plus shares the Grand Plus cartridge threading. The model code is on the sticker under the front flap; match it to the listing before ordering. The wrong sub-variant leads to housing-thread mismatches you can't fix with tape. | OEM vs compatible — think about AMC, not just price. Kent-originals are ~2× compatible pricing but preserve AMC warranty and have tighter QC. If your Supreme Plus is under 3 years old and still has AMC coverage, stick with Kent-originals; the price gap is less than one non-AMC service visit. Out-of-AMC units can move to Vontron/Wellon safely. | Installation steps specific to this unit. Turn off the inlet tap and unplug the unit. Drain the tank through the dispenser tap for 30 seconds. Open the front flap, unscrew each housing anticlockwise using the plastic wrench that shipped with the unit. Lubricate the new O-rings with a dab of food-grade silicone grease. Hand-tighten only. Run 10 L of water through post-install to flush carbon dust before drinking.
What is a good budget option for Filter Replacements?
Konvio Neer Compatible Filter Set for Kent Supreme Plus is a solid budget choice within this range. Budget option for households on stable municipal supply. Upgrade to Wellon/Vontron if you're on borewell.
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