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Square cyan Canon GI-21 ink bottle with angled nozzle and label

Canon

Canon GI-21 Cyan Ink Bottle 4537C001

SKU CH-8HM5-XXP01 MPN 4537C001

Genuine Canon GI-21 cyan dye-based ink bottle for compatible MegaTank printers

  • Ink TypeDye-based
  • Genuine Canon ink ensures reliable MegaTank performance
  • Cyan dye-based formula produces vivid graphics and photos
  • Bottle keyed for easy, mess-free refilling of compatible printers
  • Model 4537C001 matches exact printer specifications
  • UPC 013803331011 confirms authentic Canon supply

Genuine Canon GI-21 Cyan Ink Bottle

The Canon GI-21 Cyan Ink Bottle is a genuine dye-based consumable manufactured for compatible MegaTank printers. It supplies cyan ink for colour graphics and photographs. The bottle is identified by part number 4537C001 and UPC 013803331011. It is sold new and ready for use.

Bottle designed for MegaTank refill system

Each colour uses a dedicated bottle keyed to fit only its matching tank, preventing accidental cross-filling during maintenance. The nozzle mates directly with the printer’s cyan reservoir so no syringe or funnel is required. This design keeps the refill process clean and frees the user from handling loose caps or adapters.

Replaces depleted cyan supply in MegaTank printers

When the cyan level runs low, this bottle restores full colour output for graphics and images. The upgrade is worthwhile whenever the existing cyan tank is empty or print quality shows cyan starvation. Buyers who need black or other colour refills must purchase the separate bottles keyed for those tanks.

Highlights

  • Genuine Canon ink ensures reliable MegaTank performance
  • Cyan dye-based formula produces vivid graphics and photos
  • Bottle keyed for easy, mess-free refilling of compatible printers
  • Model 4537C001 matches exact printer specifications
  • UPC 013803331011 confirms authentic Canon supply

Specifications

BrandCanon
Ink TypeDye-based
Shipping weight0.45 kg
Package size140 × 43 × 43 mm

Questions about this item

How many pages can the GI-21 Cyan bottle print before it runs dry?

Canon does not publish a page-yield figure for the GI-21 Cyan bottle, so the exact limit depends on your print coverage and settings.

Does the ink bottle generate heat or noise during long printing sessions?

The bottle is a passive ink reservoir; it produces no heat or noise itself. Any warmth or sound comes from the MegaTank printer during operation.

Which printer models must I already own for this bottle to fit?

The GI-21 Cyan bottle is keyed for select Canon MegaTank printers; check your printer’s manual to confirm GI-21 compatibility before purchasing.

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