HP GT51/GT52 2-pack Black/Tri-color Printhead Replacement

HP DeskJet GT 5810 and 5820 All-in-One Printers (printheads need to be changed in a pair); HP Ink Tank 310 series, HP Ink Tank Wireless 410 series, HP Smart Tank 350 series, HP Smart Tank Wireless 450 series (printheads can be changed individually)