4pk Empty Refillable Ink Cartridge for Workforce pro WF7840 WF7820 WF7310 EC-C7000 wf-7840 wf-7820 T812 812 XL Printer, w/single use chips

4 Empty NON-OEM T812 XL Refillable Ink Cartridge kit for Epson Printer
Works on the last version of the printer's firmware.

Includes:

4 PCS Empty refillable ink cartridge with one-time-use chip:

1 X T812 XL Black

1 X T812 XL Cyan

1 X T812 XL Magenta

1 X T812 XL Yellow

1 refilling instruction