HP72 ink cartridges 130ml (choose from the dropdown menu):

C9371A  - Cyan

C9372A - Magenta 

C9373A - Yellow

C9374A - Grey

C9370A - Photo Black

C9403A - Matte black

Set of 4: Cyan, Magenta, Yellow and Matte black 

Set of 5: Cyan, Magenta, Yellow, Photo Black and Matte Black 

Set of 6: Cyan, Magenta, Yellow, Photo Black and Matte Black and Grey.

Past the warranty dates however please note this will not affect their printing performance.

Printer compatibility: HP Designjet T1100, Designjet T1100 MFP, Designjet T1100ps 24-in, Designjet T1100ps 44-in, Designjet T1120hd, Designjet T1120sd,  Designjet T1200, Designjet T1200 HD, Designjet T1200 PostScript, Designjet T1300 1118mm ePrinter, Designjet T1300 1118mm PostScript ePrinter, Designjet T2300, Designjet T610, Designjet T620, Designjet T770, Designjet T790, Designjet T795 1118mm ePrinter.