Epson 378 Squirrel Magenta Standard Capacity Ink Cartridge 4ml - C13T37834010 This Epson 378 Photo HD Inkjet Cartridge ensures high quality print output from your Epson Expression Photo inkjet printer. As a genuine Epson consumable, it ensures consistent and reliable operation for trouble-free printing when you need it most, and is packed with 4.1ml of magenta ink. Epson ensures that every cartridge meets its high standards and works with your machine to provide precise, clear printing.