These printers use the T037020 cartridge:
Click On a Printer to View it's Cartridges
          Epson Stylus C-42
          Epson Stylus C-42 SX
          Epson Stylus C-42 SXU
          Epson Stylus C-42 UX
          Epson Stylus C-42 UX Plus
          Epson Stylus C-43
          Epson Stylus C-44
          Epson Stylus C-44 +
          Epson Stylus C-44 UX
          Epson Stylus C-46
          Epson Stylus C-46 +
          Epson Stylus C-46 UX