These printers use the CZ131A cartridge:
Click On a Printer to View it's Cartridges
          HP DesignJet T-120 EPrinter
          HP DesignJet T-125
          HP DesignJet T-130
          HP DesignJet T-520 EPrinter - 36 IN.
          HP DesignJet T-520 EPrinter
          HP DesignJet T-525-24IN.
          HP DesignJet T-525-36IN.
          HP DesignJet T-530-24IN.
          HP DesignJet T-530-36IN.