These printers use the T048420 cartridge:
Click On a Printer to View it's Cartridges
          Epson Stylus Photo R-200
          Epson Stylus Photo R-220
          Epson Stylus Photo R-300
          Epson Stylus Photo R-300 M
          Epson Stylus Photo R-300 ME
          Epson Stylus Photo R-320
          Epson Stylus Photo R-340
          Epson Stylus Photo R-500
          Epson Stylus Photo RX-500
          Epson Stylus Photo RX-600
          Epson Stylus Photo RX-620
          Epson Stylus Photo Rx-640