Remanufactured Color Inkjet Cartridge Replaces HP 51641A HP51641A-GReg. Price: $ 22.90Sale Price: $ 18.90 Original HP 51641A Color Ink Cartridge - (No. 41) HP51641A-OEMReg. Price: $ 44.95Sale Price: $ 39.99 Remanufactured Compatible Black Inkjet Cartridge Replaces HP 51645A HP51645A-GReg. Price: $ 17.90Sale Price: $ 13.90 Original HP 51645A Black Ink Cartridge - (No. 45) HP51645A-OEMReg. Price: $ 37.99Sale Price: $ 34.99