HP K550 CISS is a very hot model.
it save a lot of for the printer user.
it contains:
a)four no sponge inner cartridge with auto reset chips.
b)four external transparent ink tank.
c)tubing connect the cartridge with tank tightly.
d)small parts such as air filter, tube arm...packed a small bag.
e)all assembled ready and packed in a white neutral box.
contact us freely!
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