| HP 51625A (HP 25) Inkjet Cartridge is designed to perform in the HP C2121A, DeskJet 200, 310, 311, 320, 340, 400, 420, 500, 520, 540, 550c, 560, Portable, DeskWriter 310, 320, 340, 400, 500c, 510, 520, 540, 550, 560, C Also fits Encad, Novajet, Xerox, Apollo, and Summagraphics |