HP Remanufatured Ink Cart 51625A (No. 25) . Compatible with 51625A, #25 - COLOR. Fits Models: Apollo P1200, Deskjet 300, 310, 320, 330, 340, 340CBI, 340CM, 340CV, 400, 400L, 420, 420C, 500, 500C, 540, 540C, 550, 550C, 560, 560C, DeskJet Plus, DeskWriter (1st Version), 310, 320, 510, 520, 520C, 540, 540C, 550, 550C, 560, 560C, C, C510, C520, C540, C550, C550C, C560, C560C