I shopped around before I placed my order and the best option for me (especially since I have Prime) is Amazon.
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When the ink runs out of your HP Office Jet Printer, replacing the cartridge is as easy as opening the front printer door, ejecting the empty cartridge, and inserting the new one, and you'e done!
Always get the genuine HP replacement ink cartridges!
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Disclosure: As an Amazon Associate I earn from qualifying purchases