Kent Grand Plus Filter Replacement: Every Cartridge Explained (2026)

Kent original filter cartridges — sediment, pre-carbon, and post-carbon — are manufactured under Kent's BIS-registered process, but the cartridges themselves are not individually BIS-marked consumer items. The purifier unit carries BIS IS 16240 certification. Using non-Kent cartridges can void the unit's warranty; Kent-original sets for Grand Plus are typically priced around ₹1,299 per three-filter set on Amazon.in and through Kent's authorised service network.

The Kent Original Sediment, Pre-Carbon and Post-Carbon Filter Set (model code compatible with Grand Plus, Supreme Plus, and Elegant) is a single SKU that fits all three variants. This three-in-one set covers the mechanical and carbon-block stages. The RO membrane and UV lamp are separate consumables with different replacement intervals — typically every 2–3 years for the membrane versus every 6–12 months for the pre-filter set.

The sediment and carbon block cartridges are designed as user-replaceable on most Kent Grand Plus units — the filter housing uses a quarter-turn sump that can be removed without tools. However, if the unit is under an Annual Maintenance Contract (AMC), Kent's terms typically require authorised technician replacement to keep the AMC valid. Outside AMC, self-replacement is straightforward and saves the standard ₹400–₹700 service visit charge.

In high-TDS zones (above 500 ppm, common in Delhi, Jaipur, and parts of Punjab), the sediment pre-filter typically clogs in 4–6 months rather than the standard 6–12 month interval recommended for softer municipal supply. Kent advises checking the pre-filter indicator or sediment cartridge colour every three months if your source TDS is above 400 ppm. Monsoon months can further accelerate sediment loading due to increased turbidity in supply water.

The best Filter Replacements in India is the Kent Original Sediment, Pre-Carbon & Post-Carbon Filter Set for Grand Plus / Supreme Plus / Elegant. Best OEM option if your Kent is under 4 years old or still on AMC — worth the premium to preserve warranty.

Filter Replacements prices in India typically range from ₹1,000 – ₹3,500 per set. Check current prices on Amazon for each pick listed above.

• Key factors: Identify your exact variant before ordering. The Grand Plus sold in 2020–2024 uses slightly different housing than the 2025 refresh. Look under the front flap for the model sticker (e.g. 11112, 11152). Kent's OEM boxes list compatible model numbers — match them before paying. If you order blind off a listing that only says "Grand series," you may receive housings that don't thread onto your unit.
• OEM vs compatible — the honest trade-off. Kent-original cartridges are QC-consistent, come with Kent's warranty paperwork, and cost roughly 1.8–2.2× the price of Vontron, Wellon, or Aquaboss equivalents. Compatibles from reputed brands (Vontron especially) perform within 5–10% of OEM on RO membrane rejection, but you lose any remaining AMC warranty and there's no recourse if a housing leaks.
• Installation safety — do this right. Turn off the inlet water valve and unplug the unit before touching anything. RO systems hold residual pressure: open the dispenser tap to bleed it before unscrewing any housing. Drain the tank if you're replacing the membrane. Wear gloves — old carbon filters stain. Dry-fit the new cartridges, then tighten housings by hand only. Never use a wrench on plastic housings.

Aquadart Compatible Sediment + Pre-Carbon + Post-Carbon Set for Kent Grand Plus is a solid budget choice within this range. Cheapest compatible 3-pack — acceptable for out-of-AMC Kents on low-TDS municipal water. Not recommended for high-TDS borewell.

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.

Most products in the ₹1,000 – ₹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 ₹1,000 – ₹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.

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.