Continuous Ink Supply System, CISS for HP27 & HP28

Product features:
1)For Cartridge:HP 8727 & 8728
2)For Printer:HP deskjet 3320/3323/3325/3420/3425/3520/3535
3)Ink Volume: 100ml
4)Color: Black/Cyan/Magenta/Yellow
5)Easy installation, anyone can do it within 5 minutes
6)The advantages are easy to refill. If it run out of ink, you will only need to buy the refill ink for this system

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