Epson - EPST502320S EcoTank replacement ink bottle delivers thousands of pages plus genuine Epson quality. Exclusive, uniquely keyed EcoFit bottle makes it easy to fill each color tank. Using Genuine Epson Ink means reliable performance and brilliant results. Ink bottle is compatible with Epson EcoTank ET-2850, ET-3830, ET-3850, ET-3843, ET-4850 Wireless Color All-in-One Cartridge-Free Supertank Printers; EcoTank ET-2760, ET-3710, ET-3760, ET-4760, ET-15000 All-in-One Cartridge-Free Supertank printers; Expression ET-2750, ET-4750 Business Edition EcoTank All-in-One; Expression ET-2700, ET-2750, ET-3700 EcoTank All-in-One Supertank Printer; WorkForce ST-2000, ST-C2100, ST-3000, ST-4000, ST-C4100, Supertank Color MFPs; and WorkForce ET-3750, ET-4750 EcoTank All-in-One Supertank Printers.