8 XL cartridges with a chip compatible with HP 364XL with level indicator HP Officejet 4620, HP Officejet 4622e, HP Photosmart 5510, 5510eAiO, 5515, 5515 eAiO, 5520, 5520eAiO, 5525 eAiO, 6510, 6510 eAiO, 6520, 6520eAiO, 7510, 7510eAiO, 7520, 7520eAiO, eStation (C510a), Fax C410, Plus Premium, Premium Fax, Pro B8550, Pro B8553, Pro B8558, Wireless (Electronics)
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