Epson T664 Yellow Ink Bottle with Sensormatic (70mL)

The Epson T664420-S is a yellow ink bottle created for EcoTank printers that rely on refillable tanks instead of disposable cartridges. Each bottle carries 70 mL of dye based ink, enough to produce up to 6,500 color pages, so everyday users and busy offices can keep projects moving without frequent stops for supplies.

Because the ink was formulated by Epson for its own EcoTank line, it flows smoothly into the tank, bonds cleanly with Epson papers, and delivers a bright, consistent yellow whether you are printing family photos, classroom materials, or marketing flyers. The included Sensormatic tag also helps retailers and IT departments track inventory quickly and accurately.

Compatibility covers a broad range of Epson EcoTank models, including the Expression ET-2500 and WorkForce ET-4500. The bottle fits directly into the tank port, and the controlled valve design helps prevent drips, making the refill process straightforward even for first-time users. If you run a home office, a small business, or a school computer lab that mixes text documents with vivid graphics, this bottle offers both convenience and lower cost per page.

• 70 mL yellow ink bottle designed for Epson EcoTank printers
• Page yield up to 6,500 color pages keeps refills infrequent
• Compatible with Expression ET-2500, WorkForce ET-4500, and additional EcoTank models
• Dye based formulation produces vivid and reliable color output
• Sensormatic tag supports rapid inventory tracking and loss prevention
• Clean, user-friendly refill process reduces mess and downtime