For use on: HP56+57,21+22,27+28,57+58,816+817...

CISS DIY KIT,ia a set of continous ink system with the below parts and accessory,without the ink cartridge,you can used the original cartridge for convert.

1.Easy Installation.
2.Use Dye ink,Pigment ink,or Sublimation ink as you want

3.Reduce the printing cost as low as 90%
4.The ink is with high and vivid output,it can flow smoothly from external ink tank to ink cartridges,and will not stuff the printer head.