Epson Genuine Brand Name, OEM T252120 Black DURABrite Ultra Ink (350 YLD) for Workforce WF-3620, WF3620 DTWF, WF-3620 DWF, WF-3640, WF-3640 DTWF, WF-7110, WF-7110 DTW, WF-7610, WF-7610 DWF, WF-7620, WF-7620 DTW, WF-7620 DTWF Printers