I have the Hainsberger cartridge (HP364) ordered me to replace my HP Office Jet 4622 and am fully satisfied on. At first I was a little doubt on because the HP Office Jet 4622 was not listed as compatible in the product description, in a comment but a user had reported success using them. I can only agree, the cartridges are easily identified in the Office Jet 4622 and provide an excellent printing results. The level measurement is displayed as far correctly. And all at an unbelievable price! I will relate my future cartridges always Hainsberger!