Original HP ink cartridges provide precision output page after page, free and easy recycling, meet stringent eco-label emissions criteria for indoor air quality, and are designed for security you can trust. Keep your home or office running smoothly with Original HP 70 ink cartridges..The package includes one gray ink cartridge.Get standard-yield capacity per ink cartridge while enjoying cost savings.The unmatched reliability of original HP ink cartridge means consistent convenience and better value.Compatible with: HP DesignJet Z3100, Z3100 GP, Z3100ps GP, Z3200, Z3200ps.Count on Original HP 70 ink cartridges to deliver prints you can take pride in.. HP 70 Gray Standard Yield Ink Cartridge (C9450A) is compatible with the following HP printers: HP DesignJet Z3100, Z3200, Z2100, Z5200,Z5400. Quality and reliabilityprints you can take pride in Keep your memories alive with reliability you can trust. On average, Original HP inks print more than 2x the pages than non-HP inks tested. Sustainabilityfeel good about printing with recycled materials Using recycled content in our ink cartridges helps to reduce HP’s carbon footprint in plastics by up to 30%. Indoor air qualityconsideration for the air where you live and work HP cartridges meet indoor air quality eco-label emission standards to help protect you and your employees from exposure to elevated levels of VOCs. Securityprotect your printer and your data HP is vigilant about mitigating security risks to help reduce the risk of malicious code entering your computer or network from your cartridge.