Epson T664420-S Yellow EcoTank Ink Bottle

The Epson T664420-S is a yellow refill ink bottle engineered for Epson's EcoTank line of supertank printers, including the ET-2500, ET-2550, ET-2600, ET-2650, and ET-4500. Unlike traditional ink cartridges that run out after a few hundred pages, this ultra-high capacity bottle is rated to produce thousands of prints, dramatically reducing the cost per page. Epson estimates savings of up to 80 percent compared to conventional cartridge-based printing, making it an ideal solution for households or small offices with high-volume everyday printing needs.

As a genuine Epson ink, the T664420-S is formulated to work seamlessly with EcoTank print heads, delivering vivid and consistent yellow tones across documents, photos, and graphics. The bottle features a precision nozzle that seats into the printer's ink tank, allowing gravity-fed refilling without spills or mess. Epson has also designed the packaging with recyclability in mind, encouraging users to divert used bottles from landfill. For EcoTank owners, this ink bottle represents the core value proposition of the platform: high-quality printing at a fraction of the ongoing cost.